HEIDENHAIN TNC 415 (259 9x0) Service Manual - Manual (Page 63)

SERVICE MANUAL TNC 415B/425
Page 59
Issue: 20.08.95
10.4 Power Supply of the PLC
The power supply line for the internal PLC of LE 415B/425 is connected to the terminal strip X44.
X44 PLC power supply of LE 415B/425
Terminal strip (pluggable) 3-pin
Pin No. Assignment
1 + 24 V_A, can be switched off
via EMERGENCY STOP
2 + 24 V , cannot be switched off
via EMERGENCY STOP
3 0V
Fuses: F1: 3.15A (+ 24V_A, can be switched off)
F2: 1.0A (+ 24V, cannot be switched off)
The PLC power supply of PL 400, PL 405, PL 410 or PA 110 is connected to the following terminal strips:
Power supply of PA 110
Pin No. Assignment
1 + 24 V - can be switched off via
EMERGENCY STOP
2 0V
Power supply of PL 400
Terminal Assignment
X13 + 24 V can be switched off via
EMERGENCY STOP
X12 0V
X3, pin 12 + 24V_A cannot be switched off
via EMERGENCY STOP
Power supply of PL 405 / 410
X9, X10, X11, X12, X13, X14
Power supply of PL
Terminal Assignment 1.PL 2.PL
X9 0V
X10 + 24V- logic unit and "control ready for operation"
X11 1) + 24V- logic unit for outputs O32 - O39 O64 - O71
X12 1) + 24V- logic unit for outputs O40 - O47 O72 - O79
X13 + 24V- logic unit for outputs O48 - O55 O80 - O87
X14 + 24V- logic unit for outputs O56 - O62 O88 - O94
Fuse: - F2: T1A (+ 24V- supply for logic unit)
1) not with PL 405