Lenze 8200 vector 15kW-30kW - Manual (Page 22)

Troubleshooting and fault elimination
Fault messages on the keypad or in the parameter setting program Global Drive Control
3
l
22 EDK82EV303 EN 1.0
Remedy Cause Fault PC 1) Keypad
OH3
a
53 PTC monitoring (TRIP)
(Display when
C0119 = 1 or 4) Motor too hot due to impermissibly
high currents or frequent and too long
acceleration processes Check drive dimensioning
No PTC connected Connect PTC or switch off monitoring
OH4
a
54 Controller
overtemperature Controller 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 impermissibly
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 too high Check supply voltage
OUE
a
22 Braking operation l Increase deceleration times
l When operating with an external brake
resistor:
– Check dimensioning, connection and
supply cable of the brake resistor
– Increase deceleration times
Earth leakage on the motor side Check motor supply cable and motor for
earth fault (disconnect motor from the
inverter)
Pr
a
75 Faulty parameter
transfer with the
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
with keypad Parameter set 1 is defective
Pr2
a
73 Faulty PAR2 transfer
with keypad Parameter set 2 is defective
Pr3
a
77 Faulty PAR3 transfer
with keypad Parameter set 3 is defective
Pr4
a
78 Faulty PAR4 transfer
with 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. because keypad was
disconnected during transfer 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 Depends on the error message
sd5
a
85 Open circuit − analog
input 1 Current at analog input < 4 mA at
setpoint range 4 ... 20 mA Close circuit at analog input
sd7
a
87 Open circuit − analog
input 2
1) LECOM error number, display in Global Drive Control (GDC) parameter setting program