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 Default I/O connection
diagram (page 117)) of the control unit or with option +L504 to the detachable terminal block
X504.
￭ Connecting the emergency stop push buttons (options +Q951 and
+Q963)
See the circuit diagrams delivered with the drive for connecting the emergency stop circuit
and the user manuals of the options.
Internal connections
1
2
3*
4*
5*
6*
7
8
9
10
X951
6
1
2
1
3
2
3
4
5
7
Emergency stop push button on the cabinet door1
Emergency stop push button on the cabinet door2
Emergency stop circuit3
Emergency stop reset button on the cabinet door4
Emergency stop indication on the cabinet door5
Customer connections
Customer external emergency stop button6
Customer external emergency stop reset7
Remove bridges 3–4 and 5–6 if there is an external
emergency stop button. When the bridge connec-
tions are installed only the cabinet door push button
is in use.
*
￭ Connecting the Safe torque off circuit
Connect the customer Safe torque off circuit as described in chapter .
For drives with options +Q951, +Q963 and +Q971, connect the Safe torque off circuit to
terminal block X969 – not to the control unit STO terminals.:
Electrical installation 109
To Next Page
Loading...
