Relay Outputs - HORNER APG XL10 PRIME OCS User Manual

8.5

Relay Outputs

Relay outputs are designed to switch loads that typically have high voltage or current requirements or
require the isolation that relays provide.
NOTE: The design of the EXL10/XL10 PRIME OCS does not require external coil power for the relays to
function. The relays will activate anytime the EXL10/XL10 PRIME OCS is powered.
There are several factors that should be considered when using relays:
Relay Life – Relays are mechanical devices that have a long but limited life. Typically, switching more current
limits the life of relays. Please check the data sheets at the end of this manual for expected relay life.
Current / Temperature De-Rating – Products containing relays often have total current limits based on the
ambient temperature of the application. Please see the product data sheet for current / temperature de-rating
information for relays.
Fusing – External fusing is generally required to protect the relays, devices and wiring from shorts or overloads.
Warning: To protect the module and associated wiring from load faults, use external (5A) fuse(s) as shown.
Fuses of lower current or fusing for the entire system need to be in place to assure the maximum
current rating of the unit is not exceeded.
Warning: Connecting high voltage to any I/O pin can cause high voltage to appear at other I/O pins.
J u l y 6 , 2 0 2 2
230VAC
N
OR
L
25VDC
LOAD
230VAC
N
OR
L
25VDC
LOAD
230VAC
N
OR
L
25VDC
LOAD
230VAC
N
OR
L
25VDC
LOAD
230VAC
N
OR
L
25VDC
LOAD
230VAC
N
OR
L
25VDC
LOAD
12-24VDC
0V ON J1
Figure 8.5 – Relay Fusing
MAN1029-10-EN_EXL10_XL10P_UM
C6
R6
C5
R5
C4
R4
C3
R3
C2
R2
C1
R1
H4
H3
H2
001XLE015
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