7.2 Guide to electrical installation
The following notes should help you to carry out the electrical installation.
Cable selection
Select cables in accordance with IEC 60204 ð p.31.
Grounding
Shielding
For EMC-compliant shielding and grounding ð p.65.
Ground the mounting plate, motor housing and CNC-GND of the
control system. Notes on connection techniques ð p.60.
Wiring
Note: Route power leads and control cables separately.
Wire the BTB/RTO contact in series into the emergency stop
circuit of the system.
1. Connect the digital control inputs and outputs.
2. Connect the analog input source, if required.
3. Connect the feedback device.
4. Connect the expansion card
— (see corresponding notes from page 125).
5. Connect the motor cable
— Connect shielding to EMC connectors (shield connection) at both
— ends. Use the motor choke (3YL or 3YLN) if cable > 25 meters.
6. Connect motor-holding brake, connect shielding to EMC connector
at both ends.
7. If required, connect the external brake resistor (with fusing).
8. Connect the auxiliary supply
— (maximum permissible voltage values ð p.31).
9. Connect the main electrical supply
— (maximum permissible voltage values ð p.31), hints for use of
Residual-current circuit breakers (FI) ð p.51
10.Connect the PC (ð p.102).
Final check
Final check of the implementation of the wiring against the wiring
diagrams that have been used.
58 S701x2-S724x2 Instructions Manual
Electrical installation 07/2014 Kollmorgen
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