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5.2.1. Error acknowledgment
Three different options are available for error acknowledgement:
Manual
(reset button):
• Press the reset button on the front of the device.
If the reset button is still being pressed after approx. 2 s, the hybrid motor starter adopts an error state
again. If the acknowledgement request (actuated reset button) is active for more than 6 s, an advanced
test is conducted for the power output module and then a switch performed to the "Parameterization" op-
erating mode.
Manual
(remote acknowledgement point):
• Connect a button (N/O contact) between the MAN and RES terminals.
An acknowledgement is triggered as soon as a positive edge is detected at the MAN input. If a negative
edge is not identified after approx. 2 s, the hybrid motor starter adopts the error status again.
Automatic:
• Establish an electrical connection between the RES and AUT terminals.
After the bimetal monitoring has been triggered and the subsequent cooling, the device performs an au-
tomatic acknowledgment.
The RES terminal provides the voltage for the reset.
In variants with a rated control supply voltage of 24 V DC, this is 24 V DC.
5.2.2. Feedback
As soon as the hybrid motor starter detects an error, the reply relay is switched, i.e. the N/O contact is
closed or the N/C contact is opened. This behavior corresponds to that of a motor overload protection re-
lay.
The feedback is for signaling purposes only and is not part of the safety chain. It is thus not included
in the safety monitoring.
External error
in controller or I/O
devices
(maintenance re-
quirement, NE44)
Symmetry:
The two motor currents deviate from
each other by more than 33 %.
E
B
A
A
Manual
Blocking:
The max. measurable motor current is
exceeded for more than 2 s.
• Error in reverse running.
E
B
B
A
Manual
• Error in forward running.
E
B
A
B
Manual
Message (power
path remains
switched on)
Message
with pending control signal:
- 2 or more phases are missing
- No motor connected
- Motor current in at least two phases >
2
s below
the minimum current value that can be set
• Message in reverse running (left rotation).
B
B
E
A
Automatic
• Message in forward running (right rotation).
B
B
A
E
Automatic
Possible cause: Motor line interrupted, fuses
have been triggered
Status
Description
LED: PWR ERR
L
R Error acknow-
ledgement
Green Red Yellow
