5 – 18 HEIDENHAIN Technical Manual for Inverter Systems and Motors
5.1.15 UR 240 Compact Inverter
X31 Power supply for inverter
X70 Main contactor
X110 to
X113 PWM connection for axes/spindle
X69 Power supply for control
X79 Unit bus
Sliding switch:
AXIS: X110 or X113 is used as axis
SPINDLE: X110 or X113 is used as spindle
X71 Safety relay for spindle
X72 Safety relay for axes
X344 24-V supply for motor holding brake
X392 Motor holding brake (X110)
X83 Motor connection for axis 3 (7.5 A)
X80 Motor connection for spindle (35 A)
X82 Motor connection for axis 2 (7.5 A)
X81 Motor connection for axis 1 (7.5 A)
Equipment ground
X393 Motor holding brake (X111 to X113)
(X113)
UVWUVW
READY UV
POWER RESET
POWER FAIL
U
DC-LINK
>>
I
DC-LINK
>>
I
LEAK.
>>
TEMP. >>
AC FAIL
NC RESET
UVW
Danger
Do not engage or disengage any connecting elements while the unit is
under power!
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