Siemens 3RW44 Manual page 146

Diagnostics and messages
8.1 Diagnostics and messages
Message
No external starting parameters
received (devices with product
version ≥ *E06*)
PIO error (devices with product
version ≥ *E06*)
Bypass element protective tripping
(devices with product version
≥ *E07*)
146
① ② ③
Cause/solution
x Occurs only during operation with PROFIBUS DP. Incorrect or
impermissible parameter values have been sent by the PLC.
Remedy: The Soft Starter ES software can be used to read the
incorrect parameter and to change it to a permissible value.
x PIO error (faulty process image of the outputs) appears
If Motor CW and Motor CCW have been selected simultaneously
•
(cause 1) or
If Parameter set 4 has been selected via the PLC (cause 2).
•
Remedy:
Automatically reset if Motor CW and Motor CCW are deactivated
•
again (in response to cause 1) or
If a valid parameter set (PS 1 - 3) is set again (in response to
•
cause 2).
x A very high current occurs in bypass mode. The tripping operation
depends on the duration of the current and strength of the current.
Fault can only be reset after 30 s (for cooling down).
Remedy: Check the motor and check soft starter dimensioning.
Manual, 03/2017, NEB535219502000/RS-AB/008
3RW44 soft starters