Siemens SINAMICS G120XA - Service Mode

Parameters
Number Name Factory setting
p29522 Multi-pump control motor selection mode 0
r29529.6 CO/BO: Multi-pump control status word: pump switchover is
not possible
-
p29530[0...3] Multi-pump control motors absolute operating hours -
p29531 Multi-pump control maximum time for continuous operation 24 h
p29539 Multi-pump control switchover enable 0
p29547[0...3] Multi-pump control motors continuous operating hours -
r29538 Multi-pump control variable-speed motor -
For more information about the parameters, see Chapter "Parameters (Page 349)".
6.3.1.4 Service mode
Function description
When a pump is in service mode, the converter locks the corresponding relay. Then you can
perform troubleshooting of this pump without interrupting the operation of other pumps. You
can use parameters p29540 to p29543 to set the pumps to work in service mode respectively.
Pumps in service mode are skipped in further multi-pump control process.
WARNING
Risk of electric shock due to incorrectly connected low-voltage circuit breakers
If a low-voltage circuit breaker is not connected correctly to a pump set in service mode,
hazardous voltages can be present at the pump when the converter relay malfunctions.
Troubleshooting the service pump can result in serious personal injury or death.
● Make sure that all pumps are connected correctly to the mains and converter through low-
voltage circuit breakers.
● After a pump is set in service mode, make sure that its low-voltage circuit breaker is open
before performing any troubleshooting operation.
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Advanced commissioning
6.3 Pump control
SINAMICS G120XA converter
212 Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB