Main Contactor And Safety Relay - HEIDENHAIN TNC 410 M Technical Manual

5.4.4 Main Contactor and Safety Relay

X70: Main
contactor
X71: Safety relay
for spindle
X72: Safety relay
for axes
April 2007
For information on the wiring and function, see the Basic Circuit Diagram for
your control.
Connecting terminals
X70 to X72
1
2
3
4
5
a
6
a
7
a. Max. 125 V
Warning
A recovery diode is required in the proximity of inductive loads, e.g. relay or
contactor coils.
Connecting the UE 1xx Compact Inverter
Assignment
+24 V output (max. 250 mA)
0 V
+24 V input for U ON, Axis ON,
Z
Spindle ON
Do not assign
Do not assign
Normally closed contact (OE1, OE1A or OE1S)
Normally closed contact (OE2, OE2A or OE2S)
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