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7 switching inputs 24 vdc for the plc – HEIDENHAIN TNC 370D User Manual

Page 20

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July 02

Mounting and Electrical Installation

TNC 370 D

3–17

3.7.7 Switching Inputs 24 Vdc for the PLC


Voltage ranges:

Logic unit

PL 410 B/PL 405 B

“1” signal: U

i

13 V to 30.2 V

“0” signal: U

i

–20 V to 3.2 V

Current ranges:

“1” signal: I

i

3.8 mA to 8.9 mA

2.5 mA to 6 mA

“0” signal: I

i

when U

i

= 3.2 V

1.0 mA

0.65 mA


Address

No. of inputs

Device

I0 to I31

31 + control-is-ready signal

Logic unit X42 (PLC input)

I128 to I152

25

Logic unit X46 (machine operating panel)

I64 to I127

64

First PLC input/output board PL 410 B

I92 to I255

64

Second PLC input/output board PL 410 B

I64 to I95

32

PL 405 B





See also other documents in the category HEIDENHAIN Equipment: