Siemens SIRIUS 3RW44 User Manual page 122

Diagnosis and Messages
Message
Impermissible Ie / CLASS settings
No external start parameters received
(for product version  *E06* devices)
PIO error (for product version  *E06*
devices)
Bypass element protective tripping (for
product version  *E07* devices)
7-6
Cause / Remedy
x The set rated operating current I
exceeds in at least one of the three parameter sets the corresponding, maximum
permissible set current, based on the selected CLASS settings (Chapter 5.4.9 "Selecting
Motor Protection Settings"). In product version  *E07* devices, the corresponding
parameter set (PS) in which the incorrect value is to be found will be displayed
For maximum permissible adjustable values, please refer to Chapter 10.3 "Technical
Data".
If the soft starter is connected in an inside delta circuit, the motor feeder may have been
incorrectly wired (Chapter 9.1.5 "3RW44 in an Inside Delta Circuit"), so that the "Status
display / Type of connection" menu item (Chapter 5.5.2 "Status Display") shows
"Unknown / fault".
Remedy: Check the set rated operating current of the motor in all 3 parameter sets,
reduce the CLASS setting or overdimension the soft starter. In the case of inside delta
circuits, check the wiring of the motor feeder to ensure that it corresponds to the specified
circuit diagrams.
If the motor is not activated, this is only a status message. However, the message
becomes an error without restart once a start command is issued.
x Only when operated with PROFIBUS DP. Incorrect or non-permissible parameter values
have been sent by the PLC.
Remedy: The incorrect parameter can be read out and corrected to a permissible value via
the Soft Starter ES software.
x PIO error (process image of the outputs faulty) is displayed:
• If Motor right and Motor left have been simultaneously selected (Cause 1) or
• parameter set 4 has been selected via the PLC (Cause 2).
Remedy:
• Automatic deletion once Motor right and Motor left are deactivated again (for Cause 1),
or
• a valid parameter set (PS 1-3) is set (for Cause 2).
x A very high current occurs in bridging mode. Tripping depends on the time and strength of
the current. The error can only be reset after 30 s (cooling).
Remedy: Check the motor and the soft starter dimensioning.
of the motor (Chapter 5.4.2 "Entering the Motor Data")
e
GWA 4NEB 535 2195-02 DS 06
SIRIUS 3RW44 manual