Lenze E82xVxxxKxxxxx - Manual (Page 458)

Troubleshooting and fault elimination
Fault elimination
Fault messages
11
l
458 EDS82EV903 EN 3.0
Remedy Cause Fault PC 1) Keypad
OH4
a 54 Controller
overtemperature Controller is too hot inside l Reduce controller load
l Improve cooling
l Check fan in the controller
OH51 203 PTC monitoring
(display when
C0119 = 2 or 5) Motor too hot due to impermissible
high currents or frequent and too long
acceleration processes Check drive dimensioning
No PTC connected Connect PTC or switch off monitoring
OU
c − DC−bus overvoltage
(message or TRIP
configurable in C0310) Mains voltage is too high Check supply voltage
OUE
a 22 Braking operation l Increase deceleration times
l For operation with an external brake
resistor:
– Check dimensioning, connection and
supply cable of the brake resistor
– Increase deceleration times
Earth leakage at motor end Check motor supply cable and motor for
earth fault (disconnect motor from the
inverter)
Pr
a 75 Faulty parameter
transfer via keypad All parameter sets are defective Before enabling the controller, repeat the
data transfer or load the Lenze setting
Pr1
a 72 Faulty PAR1 transfer via
keypad Parameter set 1 is defective
Pr2
a 73 Faulty PAR2 transfer via
keypad Parameter set 2 is defective
Pr3
a 77 Faulty PAR3 transfer via
keypad Parameter set 3 is defective
Pr4
a 78 Faulty PAR4 transfer via
keypad Parameter set 4 is defective
Pr5
a 79 Internal fault EEPROM is defective Contact Lenze
Pt5
a 81 Time error during
parameter set transfer Data flow from keypad or PC
interrupted, e.g. keypad has been
removed during data transmission Before enabling the controller, repeat the
data transfer or load the Lenze setting.
rSt
a 76 Error during Auto−TRIP
reset More than 8 error messages within
10 minutes Dependent on the error message
sd5
a 85 Wire breakage, analog
input 1 Current on analog input < 4 mA for
setpoint range 4 ... 20 mA Close the circuit at the analog input
sd7
a 87 Wire breakage, analog
input 2
1) LECOM error number, display in Global Drive Control (GDC) parameter setting program