ABB Symphony Harmony Series, Instruction, Page: 125 / 402

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DOT-120
DOT-120
Onboard Monitored Electromechanical Relay Out (with Fusing)
The DIO-120 block is the same as the DOT-100 block, but pro-
vides contact readback circuitry for digital output verification
and output channel fusing. The block supports redundant I/O
electronics.
IFP/LFP fuse 3.15 A, 250 V, 5 x 20 mm, time-lag, medium break capacity
(IEC 127-2/VI)
Weight
Module
Nonredundant base
Redundant base 1.3 kg (2.8 lb)
1.4 kg (3.0 lb)
1.6 kg (3.5 lb)
NOTES :
1. All specification values are maximums unless stated otherwise.
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Table 2-10. DOT-100 Specifications
(continued)
Property Characteristic/Value
1
Table 2-11. DOT-120 Specifications
Property Characteristic/Value
1
Outputs 24 VDC, 48 VDC, 125 VDC
120 VAC, 240 VAC
Channels 16 isolated (relay contacts)
Update rate All channels 83 times per second (12 msec)
Channel fuse 6.3 A, 250 V, 5 x 20 mm, time-lag, high break capacity
(IEC 127-2/VI)
Relay Type Magnacraft miniature epoxy sealed PC board EM relay
Coil nominal voltage 24 VDC
Coil nominal current 23 mA
Contact configuration
Contact material
Contact resistance SPDT (1 form C)
Silver cadmium oxide
100 m
Ω
Cycle rate
Minimum switching
load
Switching speed
Bounce time 30 operations per minute at rated load
10 VDC at 10 mA
15 msecs
1.2 msecs (average)
No. of operations 150,000