Instructional Booklet
Page
26
Effective: March 2012
Instructions for Installation, Operation and Maintenance of the
Eaton ATC-800 Closed/Open Transition Transfer Switch Controller
For more information visit: www.eaton.com
IB ATS-C103
Step 6:
Is the NORMAL switching device charged?
If YES:Proceed to Step 7.
If NO: Go through paragraph 6.3.4 first before
continuing.
Step 7:
Is the NORMAL power source available?
If YES:Proceed to Step 8.
If NO: Apply the correct system voltage to NORMAL
connections.
Step 8:
Is the EMERGENCY switch OPEN?
If YES:Proceed to Step 10.
If NO: Proceed to Step 9.
Step 9:
Measure the voltage between terminals B10 and B11 on
the EMERGENCY switching device (shunt trip). Is the
voltage measured 120 Vac (+/- 10 volts)? Record the
reading.
If YES: Refer to the magnum breaker maintenance
manual IB#2C12060 and check the shunt trip
EMERGENCY switch.
If NO: Check the wiring to B10 and B11.
Step 10:
Measure the voltage between terminals B12 and B13 on
the NORMAL switching device (spring release coil). Is
the voltage measured 120 Vac (+/- 10 volts)? Record
the reading.
If YES: Refer to the magnum breaker maintenance
manual IB#2C12060 and check the spring
release coil NORMAL switching device.
If NO: Check the wiring to B12 and B13.
Step 11:
If a problem persists, contact Eaton.
6.3.3 Transfer Switch Will Not Automatically Transfer To
Emergency
Step 1:
If the alternate source is a generator, is it running?
If YES: Proceed to Step 2.
If NO: Check the generator. Check the engine start
contacts.
Step 2:
Are the correct line voltage and frequency available at ter-
minals E1, E2 and E3? Record the readings.
If YES: Proceed to Step 3.
If NO: Verify that there is output voltage from the
generator.
Step 3:
Is the voltage selector plug in the correct position?
If YES: Proceed to Step 4.
If NO: Position plug correctly.
Step 4:
Is the NORMAL source available?
If YES: Proceed to Step 5.
If NO: Proceed to Step 6.
Step 5:
Is a test (Manual or Exercise) being run?
If YES: STOP! The transfer switch should not transfer
to EMERGENCY. The NORMAL source is
preferred.
If NO: Proceed to Step 6.
Step 6:
Check the voltage on transformer ET1 by measuring volt-
age between voting relay KV-8 and GND. Is the voltage
measured 120 Vac (+/- 10 volts)? Record the reading.
If YES: Proceed to Step 7.
If NO: Check voltage transformer ET1.
Step 7:
Is the EMERGENCY switching device charged?
If YES: Proceed to Step 8.
If NO: Go through paragraph 6.3.4 first before
continuing.
Step 8:
Is the NORMAL switching device OPEN?
If YES: Proceed to Step 10.
If NO: Proceed to Step 9.
Step 9:
Measure the voltage between terminals B10 and B11 on
the NORMAL switching device (shunt trip). Is the volt-
age measured 120 Vac (+/- 10 volts)? Record the read-
ing.
If YES: Refer to the magnum breaker maintenance
manual IB#2C12060 and check the shunt trip
NORMAL switch.
If NO:
Check the wiring to B10 and B11.
Step 10:
Measure the voltage between terminals B12 and B13 on
the EMERGENCY switching device (spring release coil).
Is the voltage measured 120 Vac (+/- 10 volts)?
Record the reading.
If YES: Refer to the magnum breaker maintenance
manual IB#2C12060 and check the spring
release coil EMERGENCY switching device.
If NO: Check the wiring to B12 and B13.
Step 11:
If a problem persists, contact Eaton.
