IB ATS-1005
For more information visit: www.eaton.com
Instructional Booklet
Effective: March 2010
Page
23
Instructions for Installation, Operation and Maintenance of the
Eaton ATC-600 Automatic Transfer Switch Controller
external or internal to the unit. For assistance with this determina-
tion, contact Eaton. If a problem is identified to be internal, the
unit should be returned to the factory for repair or replacement. If
a problem is identified to be external to ATC-600, proceed to Sec-
tion 6.3 and continue troubleshooting.
Table 3. Troubleshooting Guide (Cont.)
SYMPTOM
PROBABLE CAUSE
POSSIBLE SOLUTION(S)
Unit displays “S1 BRKR”
Source 1 circuit breaker did not open when it was com-
manded to open.
Source 1 circuit breaker did not close when it was com-
manded to close.
S1 Aux Close contacts did not open when Source 1
breaker opened.
S1 Aux Close contacts did not close when Source 1
breaker closed
Check Source 1 circuit breaker shunt trip (ST) wiring. Press Increase and Decrease
push-buttons simultaneously to clear message.
Check Source 1 circuit breaker spring release (SR) wiring. Press Increase and
Decrease push-buttons simultaneously to clear message.
Check S1 Aux Close control input wiring on J4-1,2. Press Increase and Decrease
push-buttons simultaneously to clear message.
Check S1 Aux Close control input wiring on J4-1,2. Press Increase and Decrease
push-buttons simultaneously to clear message.
Unit displays “S2 BRKR”
Source 2 circuit breaker did not open when it was com-
manded to open.
Source 2 circuit breaker did not close when it was com-
manded to close.
S2 Aux Close contacts did not open when Source 2
breaker opened.
S2 Aux Close contacts did not close when Source 2
breaker closed
Check Source 2 circuit breaker shunt trip (ST) wiring. Press Increase and Decrease
push-buttons simultaneously to clear message.
Check Source 2 circuit breaker spring release (SR) wiring. Press Increase and
Decrease push-buttons simultaneously to clear message.
Check S2 Aux Close control input wiring on J4-1,2. Press Increase and Decrease
push-buttons simultaneously to clear message.
Check S2 Aux Close control input wiring on J4-3,4. Press Increase and Decrease
push-buttons simultaneously to clear message.
Unit fails to communicate over Load Sequencing-
subnetwork.
Addressable Relay(s) set to incorrect address.
Addressable Relay(s) set to incorrect baud rate.
Addressable Relay(s) Watchdog and Relay Pulse fea-
tures not disabled.
Incorrect Addressable Relay(s) reportback input used.
Twisted pair wiring not used between Addressable
Relay(s) and ATC-600.
Addressable Relay(s) control power deficient or absent.
Set Addressable Relay(s) address from 002 to 00B.
Set Addressable Relay(s) baud rate to 1200 baud (SW1 = ON).
Disable Addressable Relay(s) Watchdog and Relay Pulse features (SW2, SW3 = OFF).
Wire to IN1 reportback input of Addressable Relay(s).
Use Belden 9463 twisted pair, Eaton IMPCABLE, or equivalent.
Verify Addressable Relay(s) control power of 96 to 144 VAC or 48 to 125 VDC.
Unit fails to communicate over IMPACC network. Wrong or conflicting address set on PONI.
Communications wiring errors.
PONI failure.
ATC-600 is malfunctioning.
Check that PONI has a unique address on the system and that software is addressing
proper unit.
Verify wiring is in conformance to IMPACC wiring rules.
Replace PONI.
Replace the unit.
Unit did not allow setpoints to be downloaded over
IMPACC.
Run/Program switch is not in Run position.
IMPACC communications error.
Set Run/Program switch to Run position.
See “Unit fails to communicate over IMPACC network.”
NOTICE
WHILE PERFORMING TESTING, IF AN UNDESIRED OR UNDOCU-
MENTED RESULT OCCURS, FIRST CONTACT THE LOCAL GENSET
DEALER. IF THE RESULT IS NOT CORRECTED, CONTACT THE
EATON POWER QUALITY TECHNICAL SUPPORT CENTER AT
1-800-354-2070
