Peter electronic VersiSafe, Assembly And Commissioning Instructions

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VersiSafe 23
5. LED „OUT“ lights yellow while the motor is on standstill
If the yellow LED „OUT“ is on this indicates that the measuring inputs
still receive an input signal higher then the adjusted value U
an
Observe in addition the LED „ERR“:
a) if it stays off after a time of 8 s the problem could be a interference
or residual voltage (induced AC voltage) on the measuring inputs
==>
Increase the setting of U
an
If this shows no result, or if an increase is not wished, the interference to the
measuring lines must be reduced e.g. by creening, shortening or separating the
wires, Test: Disconnect motor and short circuit terminals L1-L2-L3 on the unit, the
yellow LED must change to green or green flashing.
b) if the red LED flashes code 2 the unit has detected broken wire or DC voltage offset
between the measuring inputs L1 and L2 (or between L1 and L2 and L1 and L3).
c) if the red LED flashes code 3 the unit has detected broken wire or DC voltage offset on
measuring input L3
In the 2 last cases the wiring between VersiSafe terminals L1-L2-L3 and the motor
terminals has to be checked on interruption. Possibly the interruption comes from disre-
garding the operating remarks for motors with switchable windings (see remarks).
If failures by interruption of the input circuits can be excluded the failure can result from a DC
voltage offset > Uan. This can come from motor ontrollers like inverters or DC brakes that are not
completely switched off and supply a DC-voltage to the measuring circuit (check with Voltmeter).
If the DC content is only minor, the failure can be removed by increasing the setting value Uan
The yellow LED „OUT“ must change to green or green flashing. If not the motor controllers must
be switched off in a way that standstill can be detected correctly.
Failure:
While motor is on operation a failure is indicated.
If the LED „UH“ lights red, an internal failure occurred.
Solution:
Switch auxiliary supply off and on again (see 1.)
If the LED „ERR“ indicates a failure the flash code shows the type of fault and how to remove it.
Flash code 2 or 3 are normal during operation of DC motors. If the terminals X2-X3 are bridged,
The failure is reset automatically at standstill and the output relays are enabled. The same is valid
for operation with electronic controllers, if these produce a DC voltage e.g. during braking of a
DC-brake.