3. Depress and release the reset button to insure
that the Solid State Overload Relay is reset. In
this condition, there should be continuity
between the terminals.
4. Slide the mechanical trip test lever from right
to left to trip the Solid State Overload Relay.
There should be no continuity, indicating that
the contacts are operating normally.
If
continuity
is indicated with the relay iripped,
do not
use ihe
relay.
5. If the contacts work properly, reconnect power
and control wiring and reset the Solid State
Overload Relay for normal operation.
Additional Features
Reset Button
Depress the reset button fully and release to reset the
Solid State Overload Relay after a trip. For motor
protection purposes, the reset occurs on the upstroke of
the reset button. It is also designed so that even if the
reset button is continually held down, the Solid State
Overload Relay will still trip normally.
Remote
Reset Pocket
The Remote Reset ( catalog number CR324XRRM) i s
an optional, field-installable accessory. When the
Solid State Overload Relay trips, it can be remotely
reset by applying 120 Vac or 24 Vdc across the Remote
Reset terminals.
To install the Remote Reset, remove and discard the
cover plate over the Remote Reset pocket on the Solid
State Overload Relay. The module snaps into place i n
the slots provided.
Trip Indicator and Manual Trip Test Lever
When the trip indicator is to the right, indicated by I,
the Solid State Overload Relay contacts are in the
normal position. When the relay is tripped, the
indicator moves to the left, indicated by 0. To
manually test the Relay, move the indicator manually
to the left.
Isolated Auxiliary Contacts
The Solid State Overload Relay provides one pair of
normally open (NO) and one pair of normally dosed
(NC) isolated contacts to allow for diagnostic use or for
alarm signaling when the Relay trips. The terminals
accept AWG #22-14, 60/75
°
C copper wire only.
Tighten the terminal screws to 12 lb-in.
Open Collector
With this feature connected as illustrated in Figure 4,
it is possible to differentiate between overload and
phase-unbalance trips. The terminals are marked
COM for common and O for output After an overload
trip, the output appears as during normal operation.
There is no output following a phase-unbalance trip.
Nominal rating is +24 Vdc at 25 mA
NPN,
suitable to
drive a PLC input. The terminals accept AWG #22-14,
60/75
°
C copper wire only. Tighten the terminal
screws to 12 lb-in.
Customer-Supplied Limiting Resistor
960
a
at 24 Vdc, 480
a
at 12 Vdc
/
�--.o
I
12-24 Vdc
Su
j
ply
Figure 4. Open collector wired for trip-type differentiation.
Snap-In Marking Nameplate
Write on the nameplate with a permanent marker or
pen to identify starters and overloads.
Wiring Diagram
Figure 5 is a typical three-phase wiring diagram.
95
96
0--N--O
91fo:---l
1--o
198
Overload Relay
L1
L2
L3
Disconnect Means
Figure 5. Typical three-phase wiring diagram.
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