17 – 268 HEIDENHAIN Service Manual iTNC 530
17.5 Power Supply for PLC Outputs
17.5.1 Introduction
The PLC of the iTNC 530 as well as the PL 4xx B / PL 510 are powered by the 24 V control
voltage of the machine (in accordance with VDE 0551).
The control voltage must be smoothed with a capacitance of 150 µF/A rated, at least however
with 1000 µF/A. At a current load of 15 A, for example, this corresponds to a capacity of 2250 µF.
EN 61 131-2:1994 permits:
îš„ 5% alternating voltage component is permissible
îš„ Minimum absolute value: 20.4 Vdc
îš„ Maximum absolute value: 28.8 Vdc
Power
consumption
If half of the outputs are switched at the same time, the following are the values for power
consumption:
MC 42x (B/C): 48 W
PL 410 B: Approx. 460 W
PL 405B: Approx. 235 W
PL 510: Approx. 485 W
Nominal operating
current per output
MC 42x (B/C): 0.150 A
PL 410 B: 2 A (with max. current consumption of 20 A)
PL 405 B: 2 A (with max. current consumption of 20 A)
PLD 16-8: 2 A
Simultaneity:
2 outputs with 2 A each
4 outputs with 1 A each
8 outputs with 0.5 A each
Total current:
Out0 to Out7: ≤ 4 A
Out0 to Out3: ≤ 2 A
Out4 to Out7: ≤ 2 A
To Next Page
Loading...
Need help?
General
