Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 552)

I/O Interface
Section 10A
10A-29
Specifications for hard contact relay outputs are shown below. It is
recommended that some type of noise suppressor be used when switching
inductive load devices with hard contact outputs.
Table 10A.R
Relay Type Output Specifications
Item Rating Remark
Voltage Range 10-125 V dc
50/60 Hz
Contact Resistance 20 milliohms
Electrical-optical Isolation 2000 V Between Output Contacts and Control Logic
Digital I/O types E151, E152, and E154 have 2 hard contact relay outputs,
at terminals A11 and B11. These outputs do not have internal arc
suppression circuitry.
Digital I/O type E153 has 12 hard contact relay outputs. Relay outputs at
terminals A12 through A16 and B12 through B16 have internal arc
suppression circuitry. Relay outputs at terminals A11 and B11 do not have
internal arc suppression circuitry.
Table 10A.S
Contact Ratings
Volts Amperes Amperes Voltamperes
Make Break Continuous Make Break
240 V ac 7.5A 0.75A 2.5A 1800
VA
180 VA
120 V ac 15A 1.5A
125 V dc 0.22A 1.0A 28 VA
24 V dc 1.2A 2.5A 28 VA