Operation - Carrier OMNIZONE 50XJ064-104 Operating And Troubleshooting Manual

Indoor self-contained remote air-cooled and water-cooled, vav systems 18 to 100 nominal tons
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ERROR
COMMUNICATION
CODE
NO.
*UC
1D
EF2
22h
E
11h
Err2
15h
Err3
16h
Err4
17h
Err5
18h
EtYP
29h
EEP1
12h
Etn
28h
*With a parameter, you can choose between trip-on and -off.
NOTES:
1. During operation, the following alarms may be displayed, which have the same meaning as previously defined alarms.
• C (overcurrent alarm) — same as OC
• P (overvoltage alarm) — same as OP
• L (overload alarm) — same as OL1/OL2
• H (overheat alarm) — same as OH
2. If two or more problems arise simultaneously, one of the following alarms appears and blinks.
CP, PL, CPL
The blinking alarms, C, P, L, H are displayed in this order from left to right.
Table 16 — Trip Messages for 50BV VFD (cont)
PROBLEM
Small-current
• The output current falls to the low-current
operation trip
detection level during operation.
Ground fault trip
• A ground fault occurs in the output cable
or the motor.
Emergency stop
• During automatic operation or remote
operation, a stop command is entered from
the operation panel or a remote input device.
Main unit RAM fault
• The control RAM is defective.
Main unit ROM fault
• The control ROM is defective.
CPU fault trip
• The control CPU is defective.
Remote control
• An error arises during remote operation.
error
Inverter type error
• The control circuit board (main circuit
board or drive circuit board) is replaced.
EEPROM fault
• A data writing error occurs.
Auto-tuning error
• Check the settings of the motor parameters F401to F408
• Check that the motor is not two or more sizes smaller in capacity than the inverter.
• Check that the inverter output cable is not too thin.
• Check that the motor is not running.
• Check that the motor is a three-phase inductive motor.
POSSIBLE CAUSES
26
REMEDIES
• Enable F610 (low-current detection
parameter).
• Check whether the detection level is set
properly to the system.
(F611 and F612)
• If no error is found in the setting, make a
service call.
• Check the cable and the motor for ground
faults.
• Reset the inverter.
• Make a service call.
• Make a service call.
• Make a service call.
• Check the remote control device,
cables, etc.
• Make a service call.
• Turn off the inverter, then turn it on again.
If it does not recover from the error, make
a service call.

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