Specifications
Original instructions
Overview
This section contains specifications for the 170 ARM 370 30 I/O base.
General Specifications
Module type
10 discrete inputs in 1 group
8 relay outputs as normally open contacts in 2 groups, 4 pts/group
Supply voltage
120 VAC
Supply voltage range
85 ... 132 VAC RMS @ 47 ... 63 Hz
Supply current consumption
max. 250 mA at 120 VAC
Power dissipation
5.5 W typical
8.5 W max
I/O map
1 input word
1 output word
Isolation
Input to input
none
Output group to output group
1 780 VAC RMS
Input to output
1 780 VAC RMS
Output group to communication adapter
1 780 VAC RMS
Field to communication adapter
Defined by communication adapter type
Fuses
Internal
1A slowblow
External: input voltage (1L+)
max. 4 A fast-blow (193140000 or equivalent)
External: output voltage (1L1, 2L1)
According to the supply of the connected actuators–not to exceed 8 A slow-blow/ group.
Physical Dimensions
Width
125 mm (4.9 in)
Depth (with no adapter)
40 mm (1.54 in)
Length
141.5 mm (5.5 in) no or one busbar
159.5mm (6.3in) two busbars
171.5 mm (6.75in) three busbars
Weight
260 g (0.57lb)
Discrete Inputs
Number of points
10
Number of groups
1
Signal type
True High
IEC 1131 type
1+ (see appendix for definitions of IEC input types)
ON voltage
+11 ... +30 VDC
OFF voltage
-3 ... +5 VDC
Input current
2.5 mA minimum ON (6 mA at 24 VDC)
1.2 mA maximum OFF
Input voltage range
-3 ... +30 VDC
Input resistance
4 kOhm
Response time
2.2 ms OFF to ON
3.3 ms ON to OFF
Relay Outputs
Output type
Relay normally open output
Number of points
8
Number of groups
2
Points per group
4
Current capacity
24 VDC
> 5 mA (but only for new contacts)
2 A per point, 6 A per group (switching current <= 5 A) ohmic load
max 1 A (L/R <= 40 ms) inductive load
24...120 VAC
For 120 VAC: 0.5 A per point
For 24 VAC: 2 A per point, 6 A per group
(switching current <= 5 A) cos= 1
max. 1 A cos = 0.5
Relay type
Normally Open
Leakage current (output out)
< 1.2 mA @ 115 VAC
Fault sensing
None
Fault reporting
None
Error indication
None
Response time (resistive load / 0.5 A
10 ms @ 60 Hz OFF to ON
10 ms @ 60 Hz ON to OFF
Maximum switching cycles
> 30 x 106 (mechanical)
>=1 x 105 (inductive load with external protective circuitry)