Winco MDS50R3/B - Manual (Page 10)

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4. After the engine is running at proper speed, adjust the
voltage to the desired level using the external voltage
rheostat.
5.
Turn on the proper main line breaker (either high or
low voltage) and padlock the lock bar to prevent the
incorrect breaker from being turned on.
D. REMOTE STARTING AND CONNECTION
(Standby applications)
1. Complete the manual starting procedure above to
insure the system is set up properly.
2. Insure the start switch is in the “off” position during
installation of the remote start connections.
3. Locate the remote start terminal block. This terminal
block is located next to the full power connections,
behind the access door at the bottom of the control
panel.
4. Locate the remote start terminals in your remote
automatic transfer switch (ATS). The ATS terminal block
and wire numbers will vary with each ATS manufacturer.
The MDS50R3/B requires a contact closure for start.
WARNING: EQUIPMENT DAMAGE
THE REMOTE “SIGNAL” MUST BE A “DRY” (NON-
POWERED) CONTACT CLOSURE. USING A POWER
CONTACT WILL CAUSE PERMANENT DAMAGE TO
THE ENGINE CONTROL MODULE.
5. For most installations sixteen gauge wire is sufficient
to handle the control signal. On extremely long runs
increase wire size to minimize voltage drop.
6. Locate the neutral and full power output load connec-
tion terminal on the generator.
7. Locate and identify the “neutral” and “generator”
connections in the automatic transfer switch.
8. Connect the load block to the transfer switch using
the proper wire sizes. Refer to the National Electric
Code Handbook (NFPA 70) for proper wire type and
sizing. Use Table 310-16 for wiring run through conduit
and table 310-17 for free air wiring.
Use extreme caution when installing the delta voltage
pattern. One power leg of this 3 phase pattern produces
208 volts measured from line to neutral. Be sure to
match the location of the generator wild leg to the loca-
tion of the wild leg on the incoming power service.
Failure to do so will cause equipment damage to any 120
volt load incorrectly connected to this line.
9. Connect the neutral to the transfer switch using the
same wire size.
10. For isolated neutral operation remove the jumper wire
between the ground lug and neutral connection block.
11. Ground the Mobile Diesel generator set using an 8 ft
copper ground rod or other approved grounding system.
Connect #4 Awg Copper cable from the ground lug on
the generator to the ground rod.
12. Set the selector switch on the transfer switch to the
“off” position.
13. Move the start switch on the MDS85R to the “RUN”
position. The generator set will now start.
14. Check the voltage at the transfer switch. Verify that
it matches the incoming power line voltage line-to-line
and line-to-neutral on each leg.
15. Check the three phase rotation pattern. Insure that
you have the same rotation, with both the generator and
the normal power source.
16. Move the start switch on the MDS50R3/B to the
“STOP” position. Let the unit stop and then move the
switch to the “AUTO” position. This is the normal position
for the switch to be in for automatic start operations.
17. Move the selector switch on the transfer switch to the
“AUTO” position. This is the normal position for the
switch to be in for automatic start operation.
18. Use the test switch on the transfer switch or shut off
the incoming power to test the complete system. The
MDS50R3/B should start up and the transfer switch
should transfer the load to the generator.
19. Compare the amperage reading from each leg on the
generator and insure that none of the legs is exceeding
the nameplate rating on the generator.
20. Upon completion of the test, leave all control mode
switches in the “AUTO” position.
21. The system is now ready to start and power the
loads should the power fail.
E. CONNECTING THE LOADS
There are two ways the loads may be connected to a
Mobile Diesel Generator.
1. FRONT PANEL - A variety of receptacles have been
provided for your convenience on the front panel. The
120 volt receptacles are powered when the voltage
selector switch is in the 120/240 or 120/208 volt position.
The 240 volt receptacles (although powered in both
positions) are only usable in the 120/240 volt position. In
the 120/208 volt position the 240 volt receptacles have
only 208 volts at them.