Micromod MOD: MODCELL Multiloop Processor 2002N Model C and Associated Hardware User Manual
Page 36
MODCELL Multiloop Processor
ELECTRICAL CONNECTIONS
3.5.2 2004A SSR Input (DIM)
Make Solid-State Relay (SSR) connections as shown in Figure 3-4. 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.
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
30