ITEM C 3-Series User Manual

Service functions and error messages
Page 116
11 Service functions and error messages
11.1 Protection and service functions
11.1.1 Overview
The item Servo Positioning Controller C 3-Series has an extensive sensor system that monitors the controller unit, power
output stage, motor, and the communication with the outside world. Errors that occur will be stored in the internal error
memory. Most errors will cause the controller unit to shut down the servo positioning controller and the power output stage.
The servo positioning controller can only be switched on again after the error memory has been erased by an
acknowledgement and after the error has been eliminated or ceased to exist.
Operational safety is ensured by an extensive sensor system and numerous monitoring functions:
 Measurement of the motor temperature
 Measurement of the power unit temperature
 Detection of earth (ground) faults (PE)
 Detection of connections between two motor phases
 Detection of mains power/phase failure
 Detection of overvoltage in the DC bus circuit
 Detection of errors concerning the internal voltage supply
 Breakdown of the supply voltage
If the 24 V DC supply voltage fails, there will be approximately 20 ms left to save the parameters, for example, and to shut
down the control system in a defined manner.
11.1.2 Phase and mains power failure detection
In three-phase operation, the item Servo Positioning Controller C 3-Series detects the failure of one phase (phase failure
detection) or of several phases (mains power failure detection) of the mains power supply of the device.

ITEM C 3-Series Specifications

General

Brand	ITEM
Model	C 3-Series
Category	Controller
Language	English