Electrical Installation; Important Notes - Kollmorgen S700 Series Instruction Manual

9 Electrical Installation

9.1 Important Notes

There is a danger of serious personal injury or death by electrical shock or electrical arcing.
Capacitors can still have dangerous voltages present up to 10 minutes after switching off
the supply power. Control and power connections can still be live, even if the motor is not
rotating.
Only install and wire the equipment when it is not live.
Make sure that the cabinet is safely disconnected (for instance, with a lock-out and warn-
ing signs).
Never remove electrical connections to the drive while it is live.
Wait at least 10 minutes after disconnecting the drive from the main supply power before
touching potentially live sections of the equipment (e.g. contacts) or undoing any con-
nections.
To be sure, measure the voltage in the DC bus link and wait until it has fallen below 50 V.
Wrong mains voltage, unsuitable motor or wrong wiring will damage the amplifier.
Check the combination of servo amplifier and motor. Compare the rated voltage and current
of the units. Implement the wiring according to the connection diagram (➜ # 61)
Make sure that the maximum permissible rated voltage at the terminals L1, L2, L3 or +DC, –
DC is not exceeded by more than 10% even in the most unfavorable circumstances (see
IEC 60204-1).
Excessively high external fusing will endanger cables and devices. The fusing of the voltage
supply must be installed by the user, best values (➜ # 32). Hints for use of Residual-current
circuit breakers (FI), (➜ # 52).
The servo amplifier's status must be monitored by the PLC to acknowledge critical situ-
ations. Wire the BTB/RTO contact in series into the emergency off circuit of the installation.
The emergency off circuit must operate the supply contactor.
S748-772 Instructions Manual | 9 Electrical Installation
High Voltage up to 900 V!
Kollmorgen | kdn.kollmorgen.com | July 2019 59