184 HEIDENHAIN Technical Manual MANUALplus 620
3.6.3 X101: NC power supply
The MC main computer is supplied with +24 V NC (control voltage) of the
machine, for example by the PSL 130, see "PSL 13x low-voltage power supply
unit" on page 189 or by the integrated 24 V power supply unit of the UEC 11x
(FS).
Protective Extra Low Voltage (PELV) according to EN 61800-5-1 must be com-
plied with for the +24 V NC power supply.
Power supply: Minimum absolute value: +20.4 V–
Maximum absolute value +28.8 V–
Pin layout:
Power consumption:
Connecting termi-
nals at X101
Assignment Fuse
+ +24 V NC 7 A safety fuse inte-
grated in the MC
–0 V NC
Ensure that either the DC-link power supply unit is switched off or the line
power is disconnected before connecting the power cables!
Device Power consumption
MC 6110T 35 W
If USB components that are connected to X141/X142 require more than
0.5 A, a separate power supply becomes necessary for these components.
One possibility is the USB hub from HEIDENHAIN (582 884-02).
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