
Operating Instructions
Pump ZPU 08 ATEX
810-53711-1
Page 49 / 57
Rev.: 003
31/07/2017
SEW motor
Fault
Possible cause
Remedy
Motor does not start
Feed line interrupted
Check and correct connections, if
necessary.
Blown fuse
Replace fuse
Motor circuit breaker has
responded
Check correct adjustment of motor
circuit breaker. If necessary, remedy
the fault
Motor circuit breaker does not
switch; fault in the control program.
Check control program of motor
circuit breaker and, if necessary,
remedy the fault
Motor is hard to start
Motor has been designed for delta
connection, but has been wired to
star connection
Correct the wiring
Voltage or frequency largely differ
from the target value at least when
starting the motor
Provide better grid conditions; check
cross section of the feed line
Motor does not start
when wired as a star connection,
but only when wired as a delta
connection
In case of star connection torque is
not sufficient
Provided the delta starting current is
not too high, immediately switch the
motor on. Otherwise use larger motor
or special version (after consultation)
Contact fault on star respectively
delta connection
Remedy the fault
Wrong direction of motor rotation Motor connected wrongly
Reverse two phases
Motor hums and has
a high power consumption
Defective winding
Consult the manufacturer. Motor
must be sent to the workshop for
repair
Rotor touches
Fuse is tripped
or motor circuit breaker trips
immediately
Short circuit in the line
Remedy the short circuit
Short circuit in the motor
Consult the manufacturer. Motor
must be sent to the workshop for
repair
Lines connected wrongly
Correct the wiring
Short circuit on the motor
Consult the manufacturer. Motor
must be sent to the workshop for
repair
Speed decreasing significantly
in case of load
Overload
Measure performance, if necessary,
use larger motor or reduce load
Voltage drops out
Increase cross section of feed line
For further relevant information on maintenance, see original Instructions by the motor manufacturer. Make
sure to observe these at all times.
Содержание ZPU 08
Страница 1: ...Operating Instructions Pump ZPU 08 ATEX 810 53711 1 Page 1 57 Rev 003 31 07 2017 ZPU 08 ...
Страница 52: ...Operating Instructions Pump ZPU 08 ATEX 810 53711 1 Page 52 57 Rev 003 31 07 2017 ...
Страница 53: ...Operating Instructions Pump ZPU 08 ATEX 810 53711 1 Page 53 57 Rev 003 31 07 2017 ...
Страница 54: ...Operating Instructions Pump ZPU 08 ATEX 810 53711 1 Page 54 57 Rev 003 31 07 2017 ...
Страница 55: ...Operating Instructions Pump ZPU 08 ATEX 810 53711 1 Page 55 57 Rev 003 31 07 2017 ...
Страница 56: ...Operating Instructions Pump ZPU 08 ATEX 810 53711 1 Page 56 57 Rev 003 31 07 2017 ...
Страница 57: ...Operating Instructions Pump ZPU 08 ATEX 810 53711 1 Page 57 57 Rev 003 31 07 2017 ...