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A39-4180
LEGEND
MMS — Manual Motor Starter
Factory Wiring
Field Wiring
NOTES:
1. Connect field-supplied 120-vac
control signal (from fire/life safety
circuit) to 2 leads from shunt trip
(P/N 135046).
2. A 120-v signal will energize the
shunt trip and break the manual
motor starter contact when in an
alarm condition.
Fig. 123 — VFD Bypass Safety Shutdown Modification — Bypass without 115 Volt Control Transformer
9. Press the Auto button and verify that the drive operates
from the EMS interface. Verify that all VFD interface
functions between the VFD and the EMS system are
working.
Shunt Trip Installation, ACI Part No. 135046
Follow these steps to incorporate a 120-v shunt trip (ACI part no.
135046) onto an older style manual motor starter (MMS).
1. Turn off all power to the unit. Follow all shut down and
lock-out/tag-out procedures.
WARNING
Electrical shock can cause personal injury and death. Shut off
all power to this equipment during installation and service.
There may be more than one disconnect switch. Tag all dis-
connect locations to alert others not to restore power until
work is completed.
L2
L3
L1
5
4
1
T1
7
T2
2
3
8
a39-4499
Fig. 124 — Removing the MMS Cover
6
13
23
T3
9
14
24
2. The MMS is located in the DIN rail assembly. Record which
wires are connected to the MMS. Then carefully remove the
wires from the MMS.
3. Remove the left DIN rail stop, then push the MMS carefully
towards the bottom and lift it off the rail.
4. Remove the top cover of the MMS by pressing lightly with
thumb and forefinger by L2 and T2, and pull straight up. See
Fig. 124.
5. Install the shunt trip into the MMS as shown in Fig. 125.
6. Run the 2 white leads from the shunt trip unit through the 2
holes in the MMS cover and carefully replace the MMS cov-
er. See Fig. 126.
7. Connect the 2 white leaders to a customer-supplied 120-volt
signal from a fire safety circuit to energize the MMS shunt
trip in an alarm condition.
8. Reinstall the MMS onto the DIN rail and reconnect the wir-
ing.
9. Check performance of the shunt trip.
a39-4500
156
TERMINAL STRIP
24
23
14
13
L3
L2
L1
6
5
4
3
2
1
T3
INSTALL ACI SHUNT TRIP
T2
P/N 135046 INTO MMS
T1
L3
T3
MMS
L2
T2
L1
T1
a39-4501
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