Lenze EDK82MVXXX - Manual (Page 11)

Troubleshooting and fault elimination
Error messages
11
l
EDK82MVXXX EN 1.0
Display Remedy Cause Fault
Keypad PC 1)
OC1
a
11 short-circuit short-circuit • Find reason for short circuit; check motor cables
• Check brake resistor a
Excessive capacitive charging current of the motor
cable
Use shorter/low-capacity motor cables
OC2 12 Earth fault Grounded motor phase Check motor, check motor cable OC2
a
Excessive capacitive charging current of the motor
cable
Use shorter/low-capacity motor cables
Earth fault detection can be deactivated for checking
OC3
a
13 Overload inverter during
acceleration or short circuit
Acceleration time (C0012) too short • Increase acceleration time
• Check drive selection a
Defective motor cable Check wiring
Interturn fault in the motor Check motor
OC4
a
14 Overload controller during
deceleration
Deceleration time too short (C0013) • Allow longer deceleration time
• Check the external brake resistor selection
OC5
a
15 Controller overload in
stationary operation
Long and frequent overload periods Check drive selection
OC6 16 Motor overload (I 2 x t overload) Motor thermally overloaded by for instance OC6
a
( )
• impermissible continuous current • Check drive selection
• frequent or too long acceleration processes • Check setting under C0120
OH
a
50 Heatsink temperature > +85
°C
Ambient temperature T
amb
> +60 °C • Allow controller to cool down and ensure better
ventilation
• Check ambient temperature
OH - Heatsink temperature > +80
°C
Heat sink very dirty Clean heat sink OH
e
p
°C
Impermissible high current or frequent and long
acceleration processes
• Check drive selection
• Check load, if necessary replace sluggish, defective
bearings
OH3
a
53 PTC monitoring (TRIP)
(only generated if C0119 = 1
4)
Motor too hot because of impermissibly high
current or frequent and long acceleration processes
Check drive selection
a ( y g
or 4)
PTC not connected Connect PTC or switch-off monitoring (C0585=3)
OH4
a
54 Controller overtemperature Controller inside too hot • Reduce controller load
• Improve cooling
• Check fan in the controller
OH51 203 PTC monitoring
(only generated if C0119 = 2
)
Motor too hot because of impermissibly high
current or frequent and long acceleration processes
Check drive selection
( y g
or 5)
PTC not connected Connect PTC or switch-off monitoring (C0585=3)
OU 1020 DC-bus overvoltage Mains voltage too high Check voltage supply OU
c
g
Braking operation • Prolong deceleration times.
• For operation with external brake resistor:
– Check dimensioning, supply and connection of brake resistor
– Increase the deceleration times
Earth leakage on the motor side Check motor cable and motor for earth fault (disconnect
motor from inverter)
Pr
a
75 Faulty parameter transfer when
using the keypad
All parameter sets are faulty It is absolutely necessary to repeat the data transfer or
load the factory setting before the controller is enabled.
Pr1
a
72 Faulty transmission of PAR1
when using the keypad
PAR1 is faulty.
Pr2
a
73 Faulty transmission of PAR2
when using the keypad
PAR2 is faulty.
Pr3
a
77 Faulty transmission of PAR3
when using the keypad
PAR3 is faulty.
Pr4
a
78 Faulty transmission of PAR4
when using the keypad
PAR4 is faulty.
Pr5
a
79 Internal fault Contact Lenze
Pt5
a
81 Time error during parameter
set transfer
Data flow interrupted by keypad or PC, e. g. keypad
disconnected during data transmission.
It is absolutely necessary to repeat the data transfer or
load the factory setting before the controller is enabled.
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