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2 2004a ssr input (dim) – Micromod MOD: 30ML Installation User Manual

Page 62

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MOD 30ML Multiloop Controller

MODULAR I/O CONNECTIONS

4.3.2 2004A SSR Input (DIM)

Make Solid-State Relay (SSR) connections as shown in Figure 4-3. These input modules are
used for sensing ON/OFF voltage levels. Each module provides optical isolation between the
field devices and the control logic. This isolation is limited to 250 Vrms at the terminal block.
Typical uses and applications for these input modules include sensing voltage and contact
conditions from: proximity switches, limit switches, selector switches, push buttons,
photoelectric switches, TTL compatible devices, float switches, or thermostats.

Wire rating: 600 V, -20°C +105°C UL, CSA approved

WARNING

All wiring connected to the controller terminals must be rated for the
maximum voltage present, or alternately, wiring in circuits operating at
greater than 30 volts must be rated for at least twice the circuit voltage.


Input specifications are:
DIGITAL INPUTS (ISOLATED)

_10_

_11_

_12_

Input voltage ranges

2.5-28Vdc 4-16Vdc

10-32Vdc,

12-32Vac

mA Input current at Max Line

30

45

25

Max Logic Low Input

1V, 0.2 mA

1V, 0.7 mA

3V, 1 mA

Input Resistance (Ohms)

900

300

1K (dc), 1.5K (ac)

Module Response Time (msec) 1.5

0.1

5


DIGITAL INPUTS (ISOLATED)

_13_

_14_

_15_

Input voltage ranges

35-60Vac/dc

90-140Vac/dc 180-280Vac/dc

mA Input current at Max Line

6 (dc), 25 (ac)

11

7

Max Logic Low Input

9V, 0.8 mA

45V, 3 mA

80V, 1.7 mA

Input Resistance

10K Ohms

14K Ohms

43K Ohms

Module Response Time (msec) 10 (dc), 15 (ac)

20

20

56