The 24 V voltage supply of the S20 I/O modules may not be
branched off from the XD1 plug of the XMx control, but with an own
connecting cable to the external power supply unit instead.
The 24 V voltage supply has to be grounded. For more detailed infor-
mation, refer to the documentation of the power supply unit.
10.7.2 Voltage supply for the control
The control is supplied via the XD1 plug on the lower left.
Connect the power connector with cables with a conductor cross-
section of AWG 16 (1.5 mm
2
).
Use only copper wires to connect the connection terminals.
Use only cables approved for temperatures of at least 60°C. In case
of ambient temperatures above 55°C, use cables approved for tem-
peratures of at least 75°C.
Observe the color-coding of the plugs.
Only the "XA-CN01" power connector is approved to connect the 24
V supply voltage for the XM42 control.
If multiple XMxx controls (24 V supply voltage U
LS
) are connected
parallely to a central 24 voltage supply, ensure that the 0 V connec-
tion of the U
LS
is wired without interruption to all XMx controls.
If this is not observed, XMx controls might become defective.
Power connector XD1
Fig. 10-13: Power connector XD1
26/65
Mounting, demounting and electric installation
IndraControl XM42 Controls
Bosch Rexroth AG R911345566_Edition 03
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