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Publication 1790-IN009B-EN-P - April 2003
AC/DC Relay Output Base Block Specifications
General Specifications
PROFIBUS Power
Supply voltage - 24V dc nominal
Voltage range - 19.2-28.8V dc
Power dissipation - 1.2W maximum @ 28.8V dc
Field Power
Supply voltage - 24V dc nominal
Voltage range - 10-28.8V dc
Power dissipation - 3.22W @ 28.8V dc
Isolation
I/O to logic: photocoupler isolation
Isolation voltage: 1250V ac rms
PROFIBUS to logic: non-isolated
PROFIBUS power: non-isolated
Wiring
Terminal block (M3.0)
- screw torque: 7 inch-pounds
maximum (use copper or copper-clad
aluminum conductors
1790P-TOW6
Relay type
Form A, normally open
Single pole, single throw
Output voltage range (load dependent)
5-28V dc @ 2.0A resistive
48V dc @ 0.8A resistive
125V ac @ 2.0A resistive
250V ac @ 2.0A resistive
Minimum load
100
µ
A, 100mV dc per point
Maximum on-state voltage drop
0.5V @ 2.0A, resistive load, 24V dc
Initial Contact Resistance
30m ohm
Expected contact life
300K cycles resistive
100K cycles inductive
Maximum off-state leakage
1.5mA maximum
Output delay time
10ms maximum on to off
10ms maximum off to on
Indicators
6 green status
Common type
1 point/1COM
