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Instructional Booklet
Page
28
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
Appendix A: Status Display Messages
All possible Status Display Messages are shown below. For additional information, refer to paragraph 3.4.1.
Status Display Message
Display Message Meaning
TDEC
Countdown cool off timing before generator contacts are opened.
TDES
Countdown timing before generator contacts are closed.
TDNE
Countdown timing before normal breaker is opened for transfer to the emergency source.
TDN
Countdown timing with both sources disconnected from the load.
TXFR
Waiting for the switch to make the transfer from neutral position to the intended source.
TDEN
Countdown timing before the emergency breaker is opened for transfer to the
normal source.
NEUTRAL
Both breakers (or contactors in the case of a contactor type ATS) are opened and the load is dis-
connected.
MANUAL
Waiting for an input signal to complete the manual re-transfer.
LOCK-OUT
A trip condition has been detected by either breaker (or contactor in the case of a contactor type
ATS) and the system is locked-out from further transfers, or Option 9B, Maintenance Selector
Switch, is in the “OFF” position.
TER
The engine run test timer is counting down before the test is completed. Pressing the Engine Test
pushbutton will abort this timer and the test.
START
To initiate an engine test sequence press Engine Test pushbutton again or press Increase and
Decrease simultaneously to clear.
WAIT
Waiting for the generator source voltage and frequency to become available.
TDNV
Waiting for load voltage to decay before completing the transfer.
TDP
Countdown timing while waiting for a pre-transfer acknowledge input.
TSEQ
Countdown timing between sequenced loads.
NO R xx
No communications response on the sub-network was received from Addressable Relay II, set for
address xx.
WAIT NEU
Waiting for the neutral position to be reached by the switch.
WAIT S1
Waiting for Source 1 breaker (or contactor in the case of a contactor type ATS) to open/close dur-
ing a closed transition.
WAIT S2
Waiting for Source 2 breaker (or contactor in the case of a contactor type ATS) to open/close dur-
ing a closed transition.
TSIP
Countdown timing while waiting for sources to synchronize for an in-phase transition.
TSCT
Countdown timing while waiting for source to synchronize for a closed transition.
ABORT
Indicates that an engine test or plant exercise was aborted after three unsuccessful attempts. The
Emergency Source did not remain available while TDNE was timing.
INHIBIT
Indicates that a transfer to the Emergency Source is inhibited because the Emergency Inhibit input
is activated.
S1 BRKR
Indicates that the Source 1 circuit breaker failed to open or close. (only for CAT#8160A00G42)
S2 BRKR
Indicates that the Source 2 circuit breaker failed to open or close. (only for CAT#8160A00G42)
S1 CONT
Indicates that the Source 1 contactor failed to open or close (only for CAT#8160A00G43)
S2 CONT
Indicates that the Source 2 contactor failed to open or close.(only for CAT#8160A00G43)
1-2 FAIL
Source 1 Breaker or Contactor did not open during a close transition within 100 milliseconds
Source 2 Breaker or Contactor did not close during a close transition within 100 milliseconds
2-1 FAIL
Source 2 Breaker or Contactor did not open during a close transition within 100 milliseconds
Source 1 Breaker or Contactor did not close during a close transition within 100 milliseconds