Um 121B Power Module - HEIDENHAIN TNC 410 M Technical Manual

6.1.29 UM 121B Power Module

6 – 42
Danger
Do not engage or disengage any connecting elements while the unit is
under power!
X111
X112
X79
Sliding switch:
X344
X392
X82
X81
HEIDENHAIN Technical Manual for Inverter Systems and Motors
PWM, axis 1
PWM, axis 2 / spindle
Unit bus
AXIS: X112 = axis
Enabling through X72 of the power supply unit
SPINDLE: X112 = spindle
Enabling through X71 of the power supply unit
24-V supply for motor holding brake
(available as of version 336948-03)
Motor holding brake
(available as of version 336948-03)
Motor connection for axis 2 / spindle (X112)
Motor connection for axis 1 (X111);
Equipment ground