Which products are affected?
EVS93xx-EI (Servo PLC, software version <2.3)
EVS93xx-ET (Servo PLC, software version <2.3)
What happens?
The binary input signal MCTRL_bOvervoltage_b (TRUE = overvoltage) indicates instantaneously overvoltage which actually does not exist.
When does the problem occur?
The binary input signal MCTRL_bOvervoltage_b indicates overvoltage for the first program cycle after switching on (Power-ON) the device.
Possible diagnostics?
The input signal can be assigned to a flag or a digital output which remains set even if the signal changes from TRUE to FALSE.
Short-term measures/recommendations?
The binary input signal MCTRL_bOvervoltage_b must not be evaluated in the first program cycle, which uses the system variable, after mains connection.
Evaluation:
The error does not affect the drive controller since the input can only be used for controller diagnostics. The user is responsible for the evaluation of the input.
