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Table 16 — Trip Messages for 50BV VFD (cont)
*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.
ERROR
CODE
COMMUNICATION
NO.
PROBLEM POSSIBLE CAUSES REMEDIES
*UC 1D Small-current
operation trip
• The output current falls to the low-current
detection level during operation.
• 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.
EF2 22h Ground fault trip • A ground fault occurs in the output cable
or the motor.
• Check the cable and the motor for ground
faults.
E 11h Emergency stop • During automatic operation or remote
operation, a stop command is entered from
the operation panel or a remote input device.
• Reset the inverter.
Err2 15h Main unit RAM fault • The control RAM is defective. • Make a service call.
Err3 16h Main unit ROM fault • The control ROM is defective. • Make a service call.
Err4 17h CPU fault trip • The control CPU is defective. • Make a service call.
Err5 18h Remote control
error
• An error arises during remote operation. • Check the remote control device,
cables, etc.
EtYP 29h Inverter type error • The control circuit board (main circuit
board or drive circuit board) is replaced.
• Make a service call.
EEP1 12h EEPROM fault • A data writing error occurs. • Turn off the inverter, then turn it on again.
If it does not recover from the error, make
a service call.
Etn 28h 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.