Siemens 3RW44 soft start press emergency start why not

Create Date: 2024-8-30 12:03:23|Source: Siemens/Siemens

The 3RW44 has an emergency start function, but why does the soft start not start when the emergency start button is closed?
Siemens 3RW44 soft start press emergency start why not

Emergency start refers to the unevenness of the motor; thermal model overload; Open circuit of temperature sensor; Short circuit of the temperature sensor; The temperature sensor is overloaded; Exceeding the maximum starting time; Exceeding or falling below the current limit; Grounding errors; When setting an impossible Ie/Class level, there is no need to reset it, and the emergency start function can be used to restart immediately. In addition to the above faults, other faults cannot achieve emergency start. However, the emergency start command must be activated at the same time as the motor forward rotation command to achieve the soft starter. The emergency start command signal alone cannot cause the soft starter to start.

The 3RW44 soft starter can be set with up to 3 sets of parameters, how can I start it with different sets of parameters with manual control?

If a certain switching input is set to "motor turn right PS1", and the soft starter start signal is given through this input, then the first set of parameters takes effect, that is, the soft starter starts according to the setting of parameter group 1. If it is set to "Motor turn right to PS2", the second set of parameters will work. If it is set to "Motor turn right to PS3", the third set of parameters will work.

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