Specifications
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Modicon
™
Momentum
™
automation platform
Discrete I/O bases
Specications for discrete I/O bases
Type of base unit 170 ADM 390 30 /
170 ADM 390 31
170 ARM 370 30
Number of points
Inputs 1 x 10
Outputs 2 x 4
Operating voltage V 24 DC 120 AC (47...63 Hz)
Internal current mA 250 @ 24 Vdc 5 minimum load current
Inputs Voltage V 24...230 AC
20...115 DC
Signal type True High
On voltage minimum Vdc + 11…+ 30
Off voltage maximum Vdc - 3...+ 5
Input current mA 2.5 minimum On, 1.2 maximum Off
Input voltage range Vdc - 3...+ 30
Input resistance
kW
4
Response time ms 2.2 Off to On, 3.3 On to Off
Outputs Voltage V 24...230 AC, 20...115 DC /
24 Vdc (170 ADM 390 31 only)
Type Relay normally open
Current capacity 24 Vdc A > 0.005 (new contacts), ohmic load 2 A maximum, inductive load 1 A maximum
(LR y 40 ms)
Current capacity 115 Vdc A Ohmic load 0.5 A maximum (switching current y 1.5 A), inductive load 0.15 A
maximum (LR y 40 ms)
Current capacity Vac A 2 A maximum (switching current y 1.5 A)
cosj = 1 , 1 A maximum cosj = 0.5
2 A per point, 8 A per group, 16 A per
module
Leakage current mA < 1 @ 230 Vac –
Detected error indication None
Response time ms 10 @ 60 Hz Off to On, 10 @ 60 Hz On to Off
Max. number of switching circuits > 30 x 10
6
(mechanical), > 1 x 10
5
(inductive load with external protection circuit)
Protection against short circuit
and overload
None Varistor in parallel with each contact
Potential isolation Input to Input None
Output group to output Group V rms None 1780 AC
Input to output group V rms None 1780 AC
Field to communication
interface V rms 500 AC
Fusing Internal None
External operating voltage 315 mA fast-blow 4 A fast-blow
External input voltage max. 4 A fast-blow None
External output voltage According to the supply of the connected
actuators not to exceed 8 A
slow-blow/group
None
Power dissipation Typical W 5.5
Maximum W 8.5
Agency approvals UL, e, CSA UL, e, CSA, FM Class I, Div. II
Description:
page 12
References:
page 19
Dimensions, mounting:
page 20
Wiring diagrams:
pages 20 to 25
Specications (continued)