Category Specification
ON: -36 to -8 V DC, and 8 to 36 V DC
OFF: -2 to 2 V DC
Minimum pulse length: 50 ms
Impedance: 4.7 kΩ
Voltage withstand: ±36 V DC
Terminal connections
Relay outputs: Terminals: Standard 45° plug, 2.5 mm
2
Wiring: 0.5 to 2.5 mm
2
(22 to 12 AWG), multi-stranded
Digital inputs: Terminals: Standard 45° plug, 1.5 mm
2
Wiring: 0.5 to 1.5 mm
2
(28 to 16 AWG), multi-stranded
Torques and terminals
Module faceplate screws: 0.5 N·m (4.4 lb-in)
Connection of wiring to relay output terminals: 0.5 N·m (4.4 lb-in)
Connection of wiring to digital input terminals: 0.25 N·m (2.2 lb-in)
UL/cUL Listed: Wiring must be minimum 90 ºC (194 °F) copper conductors only.
Galvanic isolation
Between relay groups and other I/Os: 2210 V, 50 Hz for 60 s
Between digital input groups and other I/Os: 600 V, 50 Hz for 60 s
Ingress protection
Unmounted: No protection rating
Mounted in rack: IP20 according to IEC/EN 60529
Size L 28 mm × H 162 mm × D 150 mm (1.1 in × 6.4 in × 5.9 in)
Weight 196 g (0.4 lb)
13.7.2 IOM3.1 terminal overview
Terminal
Symbol Name Type
1 Normally open
Relay output (250 V AC or 30 V DC, and 6 A)
2 Common
3 Normally closed
4 Normally open
5 Common
6 Normally closed
7 Normally open
8 Common
9 Normally closed
10 Normally open
11 Common
12 Normally closed
DESIGNER'S HANDBOOK 4189340911K UK Page 438 of 521
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