Electrical installation 99
Notes:
• Do not ground the outer shield of the cable here since it is grounded at the entry.
• Keep any signal wire pairs twisted as close to the terminals as possible. Twisting the
wire with its return wire reduces disturbances caused by inductive coupling.
At the other end of the cable, leave the shields unconnected or ground them indirectly via
a high-frequency capacitor with a few nanofarads, eg. 3.3 nF / 630 V. The shield can also
be grounded directly at both ends if they are in the same ground line with no significant
voltage drop between the end points.
Connecting an auxiliary voltage supply (UPS, option +G307)
Wire the external control voltage to terminal block X307 at the back side of the mounting
plate as shown below.
Connecting emergency stop push buttons (options +Q951, +Q952, +Q963, +Q964,
+Q978, +Q979)
Connect external emergency stop push buttons according to the circuit diagrams delivered
with the drive.
Wiring the starter for auxiliary motor fan (options +M600…+M605)
Connect the power supply wires for the auxiliary motor fan to terminal block X601
according to the circuit diagrams delivered with the drive.
1
2
PE
4
5
N
L
X307
PE
1
1 Internal wiring of UPS supervision: load break switch or circuit breaker off/fault = contact open.
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