3 – 72 HEIDENHAIN Technical Manual TNC 426, TNC 430
3.13 Input: Drive Motor Enabling (LE 426 PB, LE 430 PA)
A power supply of 24 Vdc must be available at X50 to enable the drive motors.
X50: Drive enabling Pin layout for logic units up to Id. Nr. xxx xxx-3x:
Pin layout for logic units beginning with Id. Nr. xxx xxx-4x:
Connecting terminal Assignment
1+24 Vdc
2 Do not assign
30 V
Connecting terminal Assignment
1+24 Vdc
2 to 6 Do not assign
70 V
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