Page 116
11
Service functions and error
messages
11.1 Protection and service functions
11.1.1 Overview
The ARS 2100 SE series servo drives have a powerful sensor analysis, which monitors the proper
functioning of the controller, power output stage, motor and communication with the outside world. All
occurring errors are stored in an internal error memory. Most errors will cause the controller unit to
shut down the servo drive and the power output stage. They can only be switched on again after the
error memory has been deleted by acknowledging the error and after the error has been eliminated or
no longer exists.
A powerful sensor analysis and monitoring function provides operational safety:
Measuring of motor temperature
Measuring of power module temperature
Detection of ground faults (PE)
Detection of connections between two motor phases
Detection of overvoltage in the DC bus
Detection of errors with the internal voltage supply
Failure of the supply voltage.
If the 24 V DC supply voltage fails, approximately 20 ms remain to save parameters and shut down
the control properly for example.
11.1.2 Overcurrent and short-circuit monitoring
The overcurrent and short-circuit monitoring detects short-circuits between two motor phases as well
as short-circuits at the motor output terminals against the positive and negative reference potential of
the DC bus and against PE. If the error monitoring detects an overcurrent, the power output stage will
be shut down immediately to guarantee the ability to withstand short-circuits.
11.1.3 Overvoltage monitoring for the DC bus
This monitor responds, if the DC bus voltage exceeds the operating voltage range. The power output
stage will be shut down.
Product Manual „Servo drives ARS 2100 SE“
Version 5.0
