Micom Display Configuration & Operations of GRH3 air compressor
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Micom Display Configuration & Operations of GRH3 air compressor
1. Micom Display Configuration & Operations.
Display Configuration
2.2Press [< ] button to convert. .
2.3It is automatically converted by operation status.
2.4 It is automatically converted if releasing, if any a trip.
2.5It is converted by pressing [* ] and [ENT].
2.6It is converted if pressing [ESC] and [* ].
2. Operation Data Setup and Check.
Operation Display
[Main Screen]
Display discharge pressure / discharge temp. /total operation time
To go to the auxiliary operation screen, press [ >] button.
PRES : 9.9 - operation pressure display
TEMP : 999 - discharge temperature display-TERMP.
OPER : compressor’s total operation hours-OPER.
[Auxiliary Screen]-Màn hình phụ trợ
Display the motor start frequency and load/no-load, operation conversion frequency.
S : 9999 - Motor start frequency L : 9999 - Load/no-load conversion
Frequency
Air F. - Air filter use time
Oil F. - Oil filter use time
Oil S. - Oil separator use time.
[Fan Motor Trip Display]
When the compressor stops due to fan motor fault “pxx” troubleshooting page is displayed.
Refer to page 52 and control circuit: trip occurs when No.5 terminal of TB2, 97-98 is on.
Checkpoint : 49M1 settigns, fan motor and etc.
[Main Motor Trip Display]
When the compressor stops due to main motor fault “pxx”troubleshooting page is displayed.
Refer to page 52 and control circuit: trip occurs when No.6
terminal of TB2, 95-98 is on.
Checkpoint : 4EOCR , main motor, air end, pressure setting.
[Abnormal Operation Signal , Trip Display]
When the compressor stops due to abnormal operation signal
“pxx”troubleshooting page is displayed.
Refer to page 53 and control circuit: trip occurs when No.8 terminal of TB2, 13-4 is not on after the start.
Checkpoint : 42 magnet aux. contact point, electrical wiring
diagram(drawing)
[Excessive discharge temp., Trip display]
When the compressor stops due to excessive discharge temp .“pxx” troubleshooting page is displayed.Refer to page 52 and control circuit: trip occurs when the discharge temperature rises over 110.
Checkpoint : oil level, oil cooler, tem. Sensor and etc.
[Abnormal Temp. sensor, Trip display].
When the discharge temperature detection sensor is in trouble,“pxx” troubleshooting page is displayed. Refer to page 53 and control circuit.
Checkpoint : temperature sensor, temperature sensor wiring
[Abnormal pressure sensor, Trip display]
When the discharge pressure control sensor is in trouble
“pxx” troubleshooting page is displayed. Refer to page 53 and control circuit.
Checkpoint : pressure sensor, pressure sensor wiring.
[Air filter displacement display]
When the air filter use time reaches to the replacement limit(setting). Initial setting : 3000 hrs.
Checkpoint : filter replacement and use time reset
If pressing [STOP] button for 10 seconds, [RESET ! OK] message is message is displayed and the use time is reset.
[Oil Filter replacement display]
When the oil filter use time reaches to the replacement limit(setting).Initial setting: 3000 hrs;
Checkpoint : filter replacement and use time reset
If pressing [SCHEDULE] button for 10 seconds, [RESET ! OK] message is
displayed and the use time is reset.
[Oil Separator replacement display]
When the oil separator use time reaches to the replacement limit(setting).Initial setting .
Checkpoint : filter replacement and use time reset
If pressing [STOP] and [SCHEDULE]buttons for 10 seconds, [RESET ! OK]
message is displayed and the use time is reset.
[Internal pressure rise auto start stand-by display]
If the internal pressure[P1] is 2.0 bar and higher after pressing [START] button, the auto start stand-by display appears..
If the internal pressure falls under 2.0 bar, it automatically starts.
[Line pressure rise auto start stand-by display]
Auto start stand-by display when the compressor’s internal pressure [P2] is higher than the setting after [START ]button. It automatically starts when P2 pressure falls under 6.0 bar.
[No load operation display]
No-load operation when the pressure rises higher than the no-load start pressure due to reduced air volume. It operates under no-load for the set time(10 minutes) and automatically stops.
[Auto stop display]
When the compressor automatically stops under no load operation. It automatically starts if the pressure falls under the preset pressure (6.0 Bar).
[Schedule Operation selection display]
When pressing schedule operation button If selecting the schedule operation mode and pressing START button, it operates and stops according to the predefined time.
[Stop delay operation display]
If pressing STOP button, the compressor stops after 10 second no-load operation Stop delay time count.
[Discharge high temp. check alarm display]
High temperature check alarm is displayed if the discharge temperature is between 95 ~110.
Notes: if discharge temperature is higher than 110 , a trip attributable to excessive temperature occurs and the compressor stops.
[Schedule operation display]
When the compressor operates by schedules or is waiting for the start. The left figure is displayed when pressing schedule operation button. If pressing START button after selecting schedule operation mode, it operates and stops according to the pre-defined time.
[Manual no-load operation display]
No load operation display when pressing manual no load start button. To return to the load operation, press it again. Stop delay time count.
[Insufficient coolant, trip display] water-cooling type
When the compressor stops due to insufficient coolant A trip occurs when the coolant flow switch operates for 5 seconds after 15 seconds of the operation.
Notes: detected only when the main motor is rotating
.
[High oil temperature, trip display] Optional
When the compressor stops due to high oil temperature “pxx” troubleshooting page is displayed.
Checkpoint: a trip occurs when the oil temperature is higher than 95 during operation.
Checkpoint : oil level, oil cooler cleaning and etc
AR01: [ ]
AR02: Operation diff. Pressure (Vận hành áp suất khác nhau)
AR03: Operation pressure
AR04: [ ]
AR05: Auto start diff. Pressure
AR06: [ ]
T01: Y-D switchover time
T02: auto stop time
T03: [ ]
T04: [ ]
T05: [ ]
HW01: input schedule operation time
OT2 : air filter replacement time[ ]
OT3 : oil filter replacement time[ ]
OT4 : separator replacement time[ ]
[AR03] - [AR05] = Auto restart pressure 7.0 - 1.0 = 6.0 bar
Operation diff. pressure change
If placing the cursor on [AR02] and pressing [ENT] button, the left figure is displayed. Move the cursor on 1 1.0, press [ENT] button, change the data by using [^ v ] buttons and press [ENT], completing the
data change if pressing [ESC]. If pressing [ESC] button, the screen moves to the higher menu
Caution! The operation diff. pressure should be set higher than 10(1.0bar). Place the cursor on [AR03] and pressing [ENT] button. Then, the left figure is displayed.
Operation pressure change
placing the cursor on [AR03] and pressing [ENT] button, then, the left figure is displayed. Place the cursor on 1 7.0, press [ENT] button and change the data by using [ ^ v ] buttons, completing the data change
if pressing [ENT]. If pressing [ESC] button, the screen moves to the higher menu.
Caution! Do not set it over the rated pressure. It may cause the trouble in the main motor.
Auto start pressure
Place the cursor on [AR05] and press [ENT] button. Then, the left figure is displayed.
Place the cursor on 1 1.0, press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button,completing the data change. Then, if pressing [ESC] button, the screen moves to the higher menu.
Caution! Set [AR05] I1 higher than 1.0bar. or, the compressor may have a.
Schedule operation time
If placing the cursor on [T02] and pressing [ENT] button, the left screen appears.
Place the cursor on 1 10, press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button,
completing the data change. If pressing [ESC] button, the screen moves to the higher menu.
Caution! Do not set T02 shorter than 5 mins. Frequent starts may cause the trouble in the main motor.
Micom Display Configuration & Operations.
Display Configuration
2.2Press [< ] button to convert. .
2.3It is automatically converted by operation status.
2.4 It is automatically converted if releasing, if any a trip.
2.5It is converted by pressing [* ] and [ENT].
2.6It is converted if pressing [ESC] and [* ].
Operation Data Setup and Check.
Operation Display
[Main Screen]
Display discharge pressure / discharge temp. /total operation time
To go to the auxiliary operation screen, press [ >] button.
PRES : 9.9 - operation pressure display
TEMP : 999 - discharge temperature display-TERMP.
OPER : compressor’s total operation hours-OPER.
[Auxiliary Screen]
Display the motor start frequency and load/no-load, operation conversion frequency.
S : 9999 - Motor start frequency L : 9999 - Load/no-load conversion
Frequency
Air F. - Air filter use time
Oil F. - Oil filter use time
Oil S. - Oil separator use time.
[Fan Motor Trip Display]
When the compressor stops due to fan motor fault “pxx” troubleshooting page is displayed.
Refer to page 52 and control circuit: trip occurs when No.5 terminal of TB2, 97-98 is on.
Checkpoint : 49M1 settigns, fan motor and etc.
[Main Motor Trip Display]
When the compressor stops due to main motor fault “pxx”troubleshooting page is displayed.
Refer to page 52 and control circuit: trip occurs when No.6
terminal of TB2, 95-98 is on.
Checkpoint : 4EOCR , main motor, air end, pressure setting.
[Abnormal Operation Signal , Trip Display]
When the compressor stops due to abnormal operation signal
“pxx”troubleshooting page is displayed.
Refer to page 53 and control circuit: trip occurs when No.8 terminal of TB2, 13-4 is not on after the start.
Checkpoint : 42 magnet aux. contact point, electrical wiring
diagram(drawing)
[Excessive discharge temp., Trip display]
When the compressor stops due to excessive discharge temp .“pxx” troubleshooting page is displayed.Refer to page 52 and control circuit: trip occurs when the discharge temperature rises over 110.
Checkpoint : oil level, oil cooler, tem. Sensor and etc.
[Abnormal Temp. sensor, Trip display].
When the discharge temperature detection sensor is in trouble,“pxx” troubleshooting page is displayed. Refer to page 53 and control circuit.
Checkpoint : temperature sensor, temperature sensor wiring
[Abnormal pressure sensor, Trip display]
When the discharge pressure control sensor is in trouble
“pxx” troubleshooting page is displayed. Refer to page 53 and control circuit.
Checkpoint : pressure sensor, pressure sensor wiring.
[Air filter displacement display]
When the air filter use time reaches to the replacement limit(setting). Initial setting : 3000 hrs.
Checkpoint : filter replacement and use time reset
If pressing [STOP] button for 10 seconds, [RESET ! OK] message is message is displayed and the use time is reset.
[Oil Filter replacement display]
When the oil filter use time reaches to the replacement limit(setting).Initial setting: 3000 hrs;
Checkpoint : filter replacement and use time reset
If pressing [SCHEDULE] button for 10 seconds, [RESET ! OK] message is
displayed and the use time is reset.
[Oil Separator replacement display]
When the oil separator use time reaches to the replacement limit(setting).Initial setting .
Checkpoint : filter replacement and use time reset
If pressing [STOP] and [SCHEDULE]buttons for 10 seconds, [RESET ! OK]
message is displayed and the use time is reset.
[Internal pressure rise auto start stand-by display]
If the internal pressure[P1] is 2.0 bar and higher after pressing [START] button, the auto start stand-by display appears..
If the internal pressure falls under 2.0 bar, it automatically starts.
[Line pressure rise auto start stand-by display]
Auto start stand-by display when the compressor’s internal pressure [P2] is higher than the setting after [START ]button. It automatically starts when P2 pressure falls under 6.0 bar.
[No load operation display]
No-load operation when the pressure rises higher than the no-load start pressure due to reduced air volume. It operates under no-load for the set time(10 minutes) and automatically stops.
[Auto stop display]
When the compressor automatically stops under no load operation. It automatically starts if the pressure falls under the preset pressure (6.0 Bar).
[Schedule Operation selection display]
When pressing schedule operation button If selecting the schedule operation mode and pressing START button, it operates and stops according to the predefined time.
[Stop delay operation display]
If pressing STOP button, the compressor stops after 10 second no-load operation Stop delay time count.
[Discharge high temp. check alarm display]
High temperature check alarm is displayed if the discharge temperature is between 95 ~110.
Notes: if discharge temperature is higher than 110 , a trip attributable to excessive temperature occurs and the compressor stops.
[Schedule operation display]
When the compressor operates by schedules or is waiting for the start. The left figure is displayed when pressing schedule operation button. If pressing START button after selecting schedule operation mode, it operates and stops according to the pre-defined time.
[Manual no-load operation display]
No load operation display when pressing manual no load start button. To return to the load operation, press it again. Stop delay time count.
[Insufficient coolant, trip display] water-cooling type
When the compressor stops due to insufficient coolant A trip occurs when the coolant flow switch operates for 5 seconds after 15 seconds of the operation.
Notes: detected only when the main motor is rotating
.
[High oil temperature, trip display] Optional
When the compressor stops due to high oil temperature “pxx” troubleshooting page is displayed.
Checkpoint: a trip occurs when the oil temperature is higher than 95 during operation.
Checkpoint : oil level, oil cooler cleaning and etc
AR01: [ ]
AR02: Operation diff. Pressure (Vận hành áp suất khác nhau)
AR03: Operation pressure
AR04: [ ]
AR05: Auto start diff. Pressure
AR06: [ ]
T01: Y-D switchover time
T02: auto stop time
T03: [ ]
T04: [ ]
T05: [ ]
HW01: input schedule operation time
OT2 : air filter replacement time[ ]
OT3 : oil filter replacement time[ ]
OT4 : separator replacement time[ ]
[AR03] - [AR05] = Auto restart pressure 7.0 - 1.0 = 6.0 bar
Operation diff. pressure change
If placing the cursor on [AR02] and pressing [ENT] button, the left figure is displayed. Move the cursor on 1 1.0, press [ENT] button, change the data by using [^ v ] buttons and press [ENT], completing the
data change if pressing [ESC]. If pressing [ESC] button, the screen moves to the higher menu
Caution! The operation diff. pressure should be set higher than 10(1.0bar). Place the cursor on [AR03] and pressing [ENT] button. Then, the left figure is displayed.
Operation pressure change
placing the cursor on [AR03] and pressing [ENT] button, then, the left figure is displayed. Place the cursor on 1 7.0, press [ENT] button and change the data by using [ ^ v ] buttons, completing the data change
if pressing [ENT]. If pressing [ESC] button, the screen moves to the higher menu.
Caution! Do not set it over the rated pressure. It may cause the trouble in the main motor.
Auto start pressure
Place the cursor on [AR05] and press [ENT] button. Then, the left figure is displayed.
Place the cursor on 1 1.0, press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button,completing the data change. Then, if pressing [ESC] button, the screen moves to the higher menu.
Caution! Set [AR05] I1 higher than 1.0bar. or, the compressor may have a.
Schedule operation time
If placing the cursor on [T02] and pressing [ENT] button, the left screen appears.
Place the cursor on 1 10, press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button,
completing the data change. If pressing [ESC] button, the screen moves to the higher menu.
Caution! Do not set T02 shorter than 5 mins. Frequent starts may cause the trouble in the main motor.
Display Configuration
Micom display consists of 4 screens; main operation screen, auxiliary operation screen, operation status screen and data setup screen..Screen Operation flow2.1Press [> ] button to convert.
2.2Press [< ] button to convert. .
2.3It is automatically converted by operation status.
2.4 It is automatically converted if releasing, if any a trip.
2.5It is converted by pressing [* ] and [ENT].
2.6It is converted if pressing [ESC] and [* ].
2. Operation Data Setup and Check.
Operation Display
[Main Screen]
Display discharge pressure / discharge temp. /total operation time
To go to the auxiliary operation screen, press [ >] button.
PRES : 9.9 - operation pressure display
TEMP : 999 - discharge temperature display-TERMP.
OPER : compressor’s total operation hours-OPER.
[Auxiliary Screen]-Màn hình phụ trợ
Display the motor start frequency and load/no-load, operation conversion frequency.
To go to the main screen, press [< ] button.S : 9999 - Motor start frequency L : 9999 - Load/no-load conversion
Frequency
Air F. - Air filter use time
Oil F. - Oil filter use time
Oil S. - Oil separator use time.
[Fan Motor Trip Display]
When the compressor stops due to fan motor fault “pxx” troubleshooting page is displayed.
Refer to page 52 and control circuit: trip occurs when No.5 terminal of TB2, 97-98 is on.
Checkpoint : 49M1 settigns, fan motor and etc.
[Main Motor Trip Display]
When the compressor stops due to main motor fault “pxx”troubleshooting page is displayed.
Refer to page 52 and control circuit: trip occurs when No.6
terminal of TB2, 95-98 is on.
Checkpoint : 4EOCR , main motor, air end, pressure setting.
[Abnormal Operation Signal , Trip Display]
When the compressor stops due to abnormal operation signal
“pxx”troubleshooting page is displayed.
Refer to page 53 and control circuit: trip occurs when No.8 terminal of TB2, 13-4 is not on after the start.
Checkpoint : 42 magnet aux. contact point, electrical wiring
diagram(drawing)
When the compressor stops due to excessive discharge temp .“pxx” troubleshooting page is displayed.Refer to page 52 and control circuit: trip occurs when the discharge temperature rises over 110.
Checkpoint : oil level, oil cooler, tem. Sensor and etc.
[Abnormal Temp. sensor, Trip display].
When the discharge temperature detection sensor is in trouble,“pxx” troubleshooting page is displayed. Refer to page 53 and control circuit.
Checkpoint : temperature sensor, temperature sensor wiring
[Abnormal pressure sensor, Trip display]
When the discharge pressure control sensor is in trouble
“pxx” troubleshooting page is displayed. Refer to page 53 and control circuit.
Checkpoint : pressure sensor, pressure sensor wiring.
[Air filter displacement display]
When the air filter use time reaches to the replacement limit(setting). Initial setting : 3000 hrs.
Checkpoint : filter replacement and use time reset
If pressing [STOP] button for 10 seconds, [RESET ! OK] message is message is displayed and the use time is reset.
[Oil Filter replacement display]
When the oil filter use time reaches to the replacement limit(setting).Initial setting: 3000 hrs;
Checkpoint : filter replacement and use time reset
If pressing [SCHEDULE] button for 10 seconds, [RESET ! OK] message is
displayed and the use time is reset.
[Oil Separator replacement display]
When the oil separator use time reaches to the replacement limit(setting).Initial setting .
Checkpoint : filter replacement and use time reset
If pressing [STOP] and [SCHEDULE]buttons for 10 seconds, [RESET ! OK]
message is displayed and the use time is reset.
[Internal pressure rise auto start stand-by display]
If the internal pressure[P1] is 2.0 bar and higher after pressing [START] button, the auto start stand-by display appears..
If the internal pressure falls under 2.0 bar, it automatically starts.
[Line pressure rise auto start stand-by display]
Auto start stand-by display when the compressor’s internal pressure [P2] is higher than the setting after [START ]button. It automatically starts when P2 pressure falls under 6.0 bar.
[No load operation display]
No-load operation when the pressure rises higher than the no-load start pressure due to reduced air volume. It operates under no-load for the set time(10 minutes) and automatically stops.
[Auto stop display]
When the compressor automatically stops under no load operation. It automatically starts if the pressure falls under the preset pressure (6.0 Bar).
[Schedule Operation selection display]
When pressing schedule operation button If selecting the schedule operation mode and pressing START button, it operates and stops according to the predefined time.
[Stop delay operation display]
If pressing STOP button, the compressor stops after 10 second no-load operation Stop delay time count.
[Discharge high temp. check alarm display]
High temperature check alarm is displayed if the discharge temperature is between 95 ~110.
Notes: if discharge temperature is higher than 110 , a trip attributable to excessive temperature occurs and the compressor stops.
[Schedule operation display]
When the compressor operates by schedules or is waiting for the start. The left figure is displayed when pressing schedule operation button. If pressing START button after selecting schedule operation mode, it operates and stops according to the pre-defined time.
[Manual no-load operation display]
No load operation display when pressing manual no load start button. To return to the load operation, press it again. Stop delay time count.
[Insufficient coolant, trip display] water-cooling type
When the compressor stops due to insufficient coolant A trip occurs when the coolant flow switch operates for 5 seconds after 15 seconds of the operation.
Notes: detected only when the main motor is rotating
.
[Internal pressure fall, alarm display]Internal pressure fall alarm display appears when the internal pressure of the compressor during operation falls under 2.0 bar. Since oil lubrication is not sufficient, which may cause troubles in air end and other rotating parts if the internal pressure is lowered, it is necessary to adjust the internal pressure purge valve so that it is maintained over 2.0 bar(internal power detection: 63A). [High oil temperature, trip display] Optional
When the compressor stops due to high oil temperature “pxx” troubleshooting page is displayed.
Checkpoint: a trip occurs when the oil temperature is higher than 95 during operation.
Checkpoint : oil level, oil cooler cleaning and etc
[Data setting error, trip display]When the values exceeds the allowable range. If the cursor blinks on a wrongly set item, please re-set the pressure within the allowable range3. Operation Data Setup
Operation data setup items .AR01: [ ]
AR02: Operation diff. Pressure (Vận hành áp suất khác nhau)
AR03: Operation pressure
AR04: [ ]
AR05: Auto start diff. Pressure
AR06: [ ]
T01: Y-D switchover time
T02: auto stop time
T03: [ ]
T04: [ ]
T05: [ ]
HW01: input schedule operation time
OT2 : air filter replacement time[ ]
OT3 : oil filter replacement time[ ]
OT4 : separator replacement time[ ]
Every data will be automatically changed for the optimal operation when changing the operation pressure, so no other data but operation pressure does not need changing. Items with[ *] and some other items are password-protected to prevent any change without permission. Every operation data are changed in [PARAMETER].Tất cả các thống số đều được thay đổi trong mục[PARAMETER]By using [^ v ] button, place the cursor on an item to change and then, change the data by pressing [ENT] button. After then, press [ENT] button to complete the input and press [ESC] button. If IO screen is displayed, press [ ] button to move to the main screen. * For the details, refer to page 49 ( Xem chi tiết tại trang 49)1) Auto restart diff. pressure when the compressor automatically stops by no-load operation. Auto restart pressure calculation.[AR03] - [AR05] = Auto restart pressure 7.0 - 1.0 = 6.0 bar
Operation diff. pressure change
If placing the cursor on [AR02] and pressing [ENT] button, the left figure is displayed. Move the cursor on 1 1.0, press [ENT] button, change the data by using [^ v ] buttons and press [ENT], completing the
data change if pressing [ESC]. If pressing [ESC] button, the screen moves to the higher menu
Caution! The operation diff. pressure should be set higher than 10(1.0bar). Place the cursor on [AR03] and pressing [ENT] button. Then, the left figure is displayed.
Operation pressure change
placing the cursor on [AR03] and pressing [ENT] button, then, the left figure is displayed. Place the cursor on 1 7.0, press [ENT] button and change the data by using [ ^ v ] buttons, completing the data change
if pressing [ENT]. If pressing [ESC] button, the screen moves to the higher menu.
Caution! Do not set it over the rated pressure. It may cause the trouble in the main motor.
Auto start pressure
Place the cursor on [AR05] and press [ENT] button. Then, the left figure is displayed.
Place the cursor on 1 1.0, press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button,completing the data change. Then, if pressing [ESC] button, the screen moves to the higher menu.
Caution! Set [AR05] I1 higher than 1.0bar. or, the compressor may have a.
Schedule operation time
If placing the cursor on [HW01] and pressing [ENT] button, the cursor is moved on [A] in the left screen. If pressing [ENT] button again, the cursor is moved on [MO]. Place the cursor on [MO], press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button, completing the data change.Place the cursor on [SA], press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button, completing the data change. [>DY1 MO] From Monday (start operation) [>DY2 SA ] Until Saturday (end operation) [ON 08:00] Starts at 08 : 00(start time) [OFF 12:00] Ends at 12 : 00(end time) By changing (A-D) in A, operation start/end time can be set in detail.MO:Monday, TU:Tuesday(Thứ 3) , WE:Wednesday(Thứ4), TH:Thursday. FR:FridaySA:Saturday, SU:SundayPlace the cursor on [T01] and press [ENT] button. Then, the left screen appears.Place the cursor on 1 05, press [ENT] button, change the data by using [ ] buttons and press [ENT] button,completing the data change. Then, if pressing [ESC] button, the screen moves to the higher menu.If placing the cursor on [T02] and pressing [ENT] button, the left screen appears.
Place the cursor on 1 10, press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button,
completing the data change. If pressing [ESC] button, the screen moves to the higher menu.
Caution! Do not set T02 shorter than 5 mins. Frequent starts may cause the trouble in the main motor.
Micom Display Configuration & Operations.
Display Configuration
Micom display consists of 4 screens; main operation screen, auxiliary operation screen, operation status screen and data setup screen.Screen Operation flow2.1Press [> ] button to convert.
2.2Press [< ] button to convert. .
2.3It is automatically converted by operation status.
2.4 It is automatically converted if releasing, if any a trip.
2.5It is converted by pressing [* ] and [ENT].
2.6It is converted if pressing [ESC] and [* ].
Operation Data Setup and Check.
Operation Display
[Main Screen]
Display discharge pressure / discharge temp. /total operation time
To go to the auxiliary operation screen, press [ >] button.
PRES : 9.9 - operation pressure display
TEMP : 999 - discharge temperature display-TERMP.
OPER : compressor’s total operation hours-OPER.
[Auxiliary Screen]
Display the motor start frequency and load/no-load, operation conversion frequency.
To go to the main screen, press [< ] button.S : 9999 - Motor start frequency L : 9999 - Load/no-load conversion
Frequency
Air F. - Air filter use time
Oil F. - Oil filter use time
Oil S. - Oil separator use time.
[Fan Motor Trip Display]
When the compressor stops due to fan motor fault “pxx” troubleshooting page is displayed.
Refer to page 52 and control circuit: trip occurs when No.5 terminal of TB2, 97-98 is on.
Checkpoint : 49M1 settigns, fan motor and etc.
[Main Motor Trip Display]
When the compressor stops due to main motor fault “pxx”troubleshooting page is displayed.
Refer to page 52 and control circuit: trip occurs when No.6
terminal of TB2, 95-98 is on.
Checkpoint : 4EOCR , main motor, air end, pressure setting.
[Abnormal Operation Signal , Trip Display]
When the compressor stops due to abnormal operation signal
“pxx”troubleshooting page is displayed.
Refer to page 53 and control circuit: trip occurs when No.8 terminal of TB2, 13-4 is not on after the start.
Checkpoint : 42 magnet aux. contact point, electrical wiring
diagram(drawing)
When the compressor stops due to excessive discharge temp .“pxx” troubleshooting page is displayed.Refer to page 52 and control circuit: trip occurs when the discharge temperature rises over 110.
Checkpoint : oil level, oil cooler, tem. Sensor and etc.
[Abnormal Temp. sensor, Trip display].
When the discharge temperature detection sensor is in trouble,“pxx” troubleshooting page is displayed. Refer to page 53 and control circuit.
Checkpoint : temperature sensor, temperature sensor wiring
[Abnormal pressure sensor, Trip display]
When the discharge pressure control sensor is in trouble
“pxx” troubleshooting page is displayed. Refer to page 53 and control circuit.
Checkpoint : pressure sensor, pressure sensor wiring.
[Air filter displacement display]
When the air filter use time reaches to the replacement limit(setting). Initial setting : 3000 hrs.
Checkpoint : filter replacement and use time reset
If pressing [STOP] button for 10 seconds, [RESET ! OK] message is message is displayed and the use time is reset.
[Oil Filter replacement display]
When the oil filter use time reaches to the replacement limit(setting).Initial setting: 3000 hrs;
Checkpoint : filter replacement and use time reset
If pressing [SCHEDULE] button for 10 seconds, [RESET ! OK] message is
displayed and the use time is reset.
[Oil Separator replacement display]
When the oil separator use time reaches to the replacement limit(setting).Initial setting .
Checkpoint : filter replacement and use time reset
If pressing [STOP] and [SCHEDULE]buttons for 10 seconds, [RESET ! OK]
message is displayed and the use time is reset.
[Internal pressure rise auto start stand-by display]
If the internal pressure[P1] is 2.0 bar and higher after pressing [START] button, the auto start stand-by display appears..
If the internal pressure falls under 2.0 bar, it automatically starts.
[Line pressure rise auto start stand-by display]
Auto start stand-by display when the compressor’s internal pressure [P2] is higher than the setting after [START ]button. It automatically starts when P2 pressure falls under 6.0 bar.
[No load operation display]
No-load operation when the pressure rises higher than the no-load start pressure due to reduced air volume. It operates under no-load for the set time(10 minutes) and automatically stops.
[Auto stop display]
When the compressor automatically stops under no load operation. It automatically starts if the pressure falls under the preset pressure (6.0 Bar).
[Schedule Operation selection display]
When pressing schedule operation button If selecting the schedule operation mode and pressing START button, it operates and stops according to the predefined time.
[Stop delay operation display]
If pressing STOP button, the compressor stops after 10 second no-load operation Stop delay time count.
[Discharge high temp. check alarm display]
High temperature check alarm is displayed if the discharge temperature is between 95 ~110.
Notes: if discharge temperature is higher than 110 , a trip attributable to excessive temperature occurs and the compressor stops.
[Schedule operation display]
When the compressor operates by schedules or is waiting for the start. The left figure is displayed when pressing schedule operation button. If pressing START button after selecting schedule operation mode, it operates and stops according to the pre-defined time.
[Manual no-load operation display]
No load operation display when pressing manual no load start button. To return to the load operation, press it again. Stop delay time count.
[Insufficient coolant, trip display] water-cooling type
When the compressor stops due to insufficient coolant A trip occurs when the coolant flow switch operates for 5 seconds after 15 seconds of the operation.
Notes: detected only when the main motor is rotating
.
[Internal pressure fall, alarm display]Internal pressure fall alarm display appears when the internal pressure of the compressor during operation falls under 2.0 bar. Since oil lubrication is not sufficient, which may cause troubles in air end and other rotating parts if the internal pressure is lowered, it is necessary to adjust the internal pressure purge valve so that it is maintained over 2.0 bar(internal power detection: 63A). [High oil temperature, trip display] Optional
When the compressor stops due to high oil temperature “pxx” troubleshooting page is displayed.
Checkpoint: a trip occurs when the oil temperature is higher than 95 during operation.
Checkpoint : oil level, oil cooler cleaning and etc
[Data setting error, trip display]When the values exceeds the allowable range. If the cursor blinks on a wrongly set item, please re-set the pressure within the allowable rangeOperation Data Setup
Operation data setup items .AR01: [ ]
AR02: Operation diff. Pressure (Vận hành áp suất khác nhau)
AR03: Operation pressure
AR04: [ ]
AR05: Auto start diff. Pressure
AR06: [ ]
T01: Y-D switchover time
T02: auto stop time
T03: [ ]
T04: [ ]
T05: [ ]
HW01: input schedule operation time
OT2 : air filter replacement time[ ]
OT3 : oil filter replacement time[ ]
OT4 : separator replacement time[ ]
Every data will be automatically changed for the optimal operation when changing the operation pressure, so no other data but operation pressure does not need changing. Items with[ *] and some other items are password-protected to prevent any change without permission. Every operation data are changed in [PARAMETER].Tất cả các thống số đều được thay đổi trong mục[PARAMETER]By using [^ v ] button, place the cursor on an item to change and then, change the data by pressing [ENT] button. After then, press [ENT] button to complete the input and press [ESC] button. If IO screen is displayed, press [ ] button to move to the main screen. * For the details, refer to page 49 ( Xem chi tiết tại trang 49)1) Auto restart diff. pressure when the compressor automatically stops by no-load operation. Auto restart pressure calculation.[AR03] - [AR05] = Auto restart pressure 7.0 - 1.0 = 6.0 bar
Operation diff. pressure change
If placing the cursor on [AR02] and pressing [ENT] button, the left figure is displayed. Move the cursor on 1 1.0, press [ENT] button, change the data by using [^ v ] buttons and press [ENT], completing the
data change if pressing [ESC]. If pressing [ESC] button, the screen moves to the higher menu
Caution! The operation diff. pressure should be set higher than 10(1.0bar). Place the cursor on [AR03] and pressing [ENT] button. Then, the left figure is displayed.
Operation pressure change
placing the cursor on [AR03] and pressing [ENT] button, then, the left figure is displayed. Place the cursor on 1 7.0, press [ENT] button and change the data by using [ ^ v ] buttons, completing the data change
if pressing [ENT]. If pressing [ESC] button, the screen moves to the higher menu.
Caution! Do not set it over the rated pressure. It may cause the trouble in the main motor.
Auto start pressure
Place the cursor on [AR05] and press [ENT] button. Then, the left figure is displayed.
Place the cursor on 1 1.0, press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button,completing the data change. Then, if pressing [ESC] button, the screen moves to the higher menu.
Caution! Set [AR05] I1 higher than 1.0bar. or, the compressor may have a.
Schedule operation time
If placing the cursor on [HW01] and pressing [ENT] button, the cursor is moved on [A] in the left screen. If pressing [ENT] button again, the cursor is moved on [MO]. Place the cursor on [MO], press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button, completing the data change.Place the cursor on [SA], press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button, completing the data change. 
[>DY1 MO] From Monday (start operation) [>DY2 SA ] Until Saturday (end operation) [ON 08:00] Starts at 08 : 00(start time) [OFF 12:00] Ends at 12 : 00(end time) By changing (A-D) in A, operation start/end time can be set in detail.MO:Monday, TU:Tuesday(Thứ 3) , WE:Wednesday(Thứ4), TH:Thursday. FR:FridaySA:Saturday, SU:SundayPlace the cursor on [T01] and press [ENT] button. Then, the left screen appears.Place the cursor on 1 05, press [ENT] button, change the data by using [ ] buttons and press [ENT] button,completing the data change. Then, if pressing [ESC] button, the screen moves to the higher menu.If placing the cursor on [T02] and pressing [ENT] button, the left screen appears.
Place the cursor on 1 10, press [ENT] button, change the data by using [^ v ] buttons and press [ENT] button,
completing the data change. If pressing [ESC] button, the screen moves to the higher menu.
Caution! Do not set T02 shorter than 5 mins. Frequent starts may cause the trouble in the main motor.