Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 547)

I/O Interface
Section 10A
10A-24
Figure 10A.18 shows a relay type output connection diagram.
Figure 10A.18
Relay Type Output Connection (E153)
Relay type output Relay type output
Relay output - Group 1
V ac/V dc Common
Relay output - Group 2
Solenoid
M M
Incorporated
noise
suppressor
230 V ac 115 V ac dc
dc + dc - L1 (H) L2 (L) L1 (H) L2 (L)
Customer supplied Customer supplied Customer supplied
Noise
suppressor Noise
suppressor or
load resistor
Noise
suppressor or
load resistor
A12 A13 A14 A15 A16 B12 B13 B14 B15 B16 B11 A11
V ac
V dc
V ac
V dc
NOT
USED
NOT
USED
11323-I
V ac/V dc Common
Important: The relay type output circuits of Group 1 (A12 - A16) and
Group 2 (B12 - B16) incorporate a noise suppressor.
Important: Surge suppression reduces arcing of an output contact and is
recommended for most applications, particularly when switching an
inductive load off.
Relay contacts A11 and B11 do not have built-in suppression and may
exhibit 50% of the relay life of contacts A12-A16 and B12-B16.
The contact life of relays used in the output circuits of the E153 module
can be significantly reduced if surge suppression is not connected across
the load. Performance testing indicates that contact life may be reduced by
as much as 30% without surge suppression across the load.