5 relay outputs, Xl7 user manual – Horner APG XL7 OCS User Manual
Page 41
XL7 User Manual
When the controller is stopped the operation of each output is configurable. The outputs can hold the state
they were in before the controller stopped or they can go to a predetermined state. By default digital
outputs turn off. For more information on stop state see the
to find pages referencing Cscape settings.
The digital outputs feature an output fault bit. %I32 will turn on if any of the outputs experience a short
circuit, over-current or the output driver overheats.
10.5 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 XL7 OCS does not require external coil power for the relays to function. The relays
will activate anytime the XL7 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.
001XLE015
0V ON J1
12-24VDC
R2
C2
R3
C3
R6
C6
R4
C4
R5
C5
R1
C1
H4
H2
H3
LOAD
230VAC
OR
25VDC
N
L
LOAD
230VAC
OR
25VDC
N
L
LOAD
230VAC
OR
25VDC
N
L
LOAD
230VAC
OR
25VDC
N
L
LOAD
230VAC
OR
25VDC
N
L
LOAD
230VAC
OR
25VDC
N
L
Warning: To protect the module and associated wiring from load faults, use external (5
A)
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.
Figure 10.5 – Relay Fusing
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