Control Via Fieldbus With Switchover To Manual Local Operation - Siemens SIRIUS 3RW55 Equipment Manual

K1
K2
K3
S1
S2
S3
S4
Q1
Q11
M1
PE
A.3.5

Control via fieldbus with switchover to manual local operation

Requirements
• 3RW55 or 3RW55 Failsafe soft starter (the example shows the 3RW55 soft starter)
• Parameterization required
• 3RW55 or 3RW55 Failsafe soft starter with an additional 3RW5 communication module
connected via fieldbus
You will find further information in the manual for the 3RW5 communication module in
question.
Automatic restart.
Can cause death or serious injury.
If a starting command is pending, a restart will be triggered automatically after the reset. This
particularly applies if the motor protection has tripped. Dangerous states of the system can
result.
Reset the start command (e.g. via the PLC or switch) before performing a reset.
To do this, for example, link the group error output (terminals 95 and 96) into the control.
SIRIUS 3RW55 and 3RW55 Failsafe Soft Starters
Equipment Manual, 02/2022, A5E35630887002A/RS-AF/006
Contactor relay
Contactor relay
Contactor relay
Pushbutton: Reset
Switch: Start slowly CW
Switch: Start slowly CCW
Switch: Start CW soft start
Motor starter protector
3RW55 soft starter
Motor
Protective conductor
WARNING
Example circuits
A.3 Special applications
317