ABB 3BSE027778R1 Servo signal module

Status outputs are monitored for short circuits and thermal overload. • If output current exceeds 350mA for about 1µs, then this is acknowledged as a short circuit and the pertinent channel is shut off. The output remains off unti the error is cleared. • With thermal overload, the error is set and the output(s) shut off. After the driver has cooled off, the outputs are switched back on and so on. The error, however, remains until it is cleared. Thermal overload can occur if several outputs are overloaded in excess of 80 mA. Note: Light bulbs, for example, cannot be controlled as their inrush current causes a short-circuit.

Absolute Encoder Error

 Description: When turning off the drive controller with a absolute encoder (multiturn), the actual feedback position will be stored. When powered up, the absolute position given by the encoder is compared to the stored position. If the deviation is larger than the paramaterized "P-0-0097, AbsoluteEncoderMonitoring Window", the error "F276, Absolute Encoder Error" will appear and be given to the control system.

Check absolute position informartion. A feedback defect is present if the absolute position information is false. The motor should be exchanged and sent to the INDRAMAT Customer Service .

F629 Positive Travel Limit Value is Exceeded

 The drive has been provided with a command value that leads to an axis position outside the positive travel range. The axis has been stopped and the error reaction "set velocity command value to zero" issued. Bit 2 of P0-0090, Travel limit parameter has been set to "Exceeding the travel limit is an error", or a drive control command has been started while the axis limit value is exceeded (e.g. drive-controlled homing). Cause: S-0-0049, Positive position limit value is exceeded. Remedial action: 1. Check S-0-0049, Positive position limit value 2. Check the controller software limits 3. Activate the axis after the error reaction

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