Electrical installation 75
Drives with additional I/O terminal block (option +L504): Ground the pair-cable shields and
all grounding wires to the grounding clamp next to the terminal block as shown below.
Leave the other ends of the control cable 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.
Connect the conductors to the appropriate terminals (see page 81) of the control unit or
optional terminal block X504.
Connecting the emergency stop push buttons (options +Q951)
Connect the emergency stop push buttons to terminals according to the circuit diagrams
delivered with the drive.
Connecting the external power supply cables for the cabinet heater and lighting and
motor heater (options +G300)
See the circuit diagrams delivered with drive.
Connect the external power supply wires for the cabinet heater to terminal block X300 at
the back of the mounting plate.
1
2
PE
4
5
N
L
X300
PE
1 Internal wiring of the cabinet heater: heater
off/fault = contact open.
1
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