Installation, connection and feeder configuration
4.3 Protection of the soft starter against short-circuits (type of assignment 2)
3RW44 soft starters
Manual, 03/2017, NEB535219502000/RS-AB/008
39
In the case of 3RW44 product version *E08* (FWV 1.9.0) the simultaneous and/or
premature switch-off of the main contactor and removal of the ON command at the soft
starter may lead to direct-on-line starting behavior of the motor when restarting. Include a
tripping delay of 1 s for the main contactor or control the main contactor via an output with
parameterized "ON time" function as described in chapter 3RW44 in a standard circuit with
line contactor and control via PLC (Page 218).
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