PCLT-2A

5 Programming of the PCLT-2A according to the input type requirement

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5

Programming of the PCLT-2A according to the input

type requirement

The operation of the PCLT-2 can be set to the various logic input types defined in the

IEC61131-2 standard. The current reference of the input-limiting block of each channel is

voltage robustness of the whole circuit. Table 1 describes the input characteristics requirements

according to the IEC standard, and Table 2 the resistance values for the 1, 2, and 3 types and

the corresponding performances of the PCLT input.

Table 1.

IEC61131-2 requirements for logic input

Type

132

State

Parameter

Unit

OFF

mA

0.5

1.5

2

V

5

5

5

ON

mA

226

V

151111

Table 2.

PCLT-2A setting for each type of logic input

Type

13

2

Setting

Unit

k

Ω

22

22

10

k

Ω

2.2

1.2

0.75

k

Ω

2.2

PERFORMANCES

mA

2.8

2.8

6.1

mA

3.6

3.6

7.6

mA

4.3

4.3

8.8

mA

2.1

2.1

4.4

kV

> 1

1

0.5

kV

8 in contact, 15 in air (class 4)