Checking The Power Supply - HEIDENHAIN iTNC 530 Service Manual

23.3 Checking the Power Supply

Power is supplied on the following connectors and pins:
Check whether the power supply is in order:
Measuring setup
with test adapter
Figure: Voltage management with test adapter
Procedure:
July 2010
MB 420
Connector X1
(or connector X46 on the MC)
Pin 34, 35
Pin 36, 37
Shut down the control and switch off the machine.
Connect the test adapter between MB and control (See "Test Adapter" on page 29 – 562).
Switch the machine back on again.
Check the supply voltage at the pins concerned with a multimeter.
MB 520
Connector X3
(or connector X46 on the MC)
Pin 34, 35
Pin 36, 37
Pin layout
0 V
24 V (PLC)
23 – 391