Standard Features - Eaton ATC-300 Mode D'emploi

Instruction Booklet
Page 4 Effective: January 2006
1.5.2 Standard and Optional Features
A variety of programmable features are available with the
ATC 300 Controller to meet a wide variety of application
requirements. Individual features or feature combinations
provide the intelligence required to tailor ATSs to individual
needs.
The features are factory activated, depending upon customer
requirements. The specific variable setpoints associated with
standard and factory activated features are stored in nonvola-
tile memory. Activated feature setpoints are available for
customer adjustment. Any feature not selected and factory
activated cannot be viewed or adjusted.

1.5.2.1 Standard Features

The following is a list of the standard features of the ATC-
300 Controller.
1. Time Delay Normal to Emergency (TDNE)
This feature provides a time delay when transferring
from the Source 1 to the Source 2 power source. Tim-
ing begins when Source 2 becomes available. It permits
controlled transfer of the load circuit to Source 2.
Adjustable 0 - 1800 Seconds
2. Time Delay on Engine Starting (TDES)
This feature provides a time delay of the signal to initiate
the engine/generator start cycle in order to override
momentary power outages or voltage fluctuations of
Source 1.
Adjustable 0 - 120 Seconds
3. Time Delay Emergency to Normal (TDEN)
This feature provides a time delay of the re-transfer oper-
ation to permit stabilization of Source 1. Timing begins
when Source 1 becomes available. If Source 2 fails dur-
ing timing, then re-transfer is immediate, overriding the
time delay.
Adjustable 0 - 1800 Seconds
4. Time Delay for Engine Cool-down (TDEC)
This feature provides a time delay of the signal to initiate
the engine/generator stop cycle after the re-transfer
operation. This allows the engine/generator to cool
down by running unloaded. Timing begins on comple-
tion of the re-transfer cycle.
Adjustable 0 - 1800 Seconds
5. Source 2 Monitoring and Protection
This feature provides monitoring and protection based on
the Source 2 voltage and/or frequency setpoints. All
feature 5 functions are "failsafe" operations.
5B. Single Phase Undervoltage and Underfrequency Protec-
tion
Adjustable Undervoltage:
Dropout: 50 - 97% of nominal
Pickup: (Dropout +2%) - 99% of nominal
Adjustable Underfrequency:
Dropout: 90 - 97% of nominal
Pickup: (Dropout +1Hz) - 99% of nominal
ATC-300 Automatic
Transfer Switch
Controller
5J.
6.
6B.
7.
8.
8C.
8D.
12.
Switch Position
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3-Phase Undervoltage and Underfrequency Protection
Adjustable Undervoltage:
Dropout: 50 - 97% of nominal
Pickup: (Dropout +2%) - 99% of nominal
Adjustable Underfrequency:
Dropout: 90 - 97% of nominal
Pickup: (Dropout +1Hz) - 99% of nominal
Test Operators
Eaton ATSs are provided with a Test Pushbutton that
simulates a loss of the Source 1 power source as stan-
dard (Feature 6B). All programmed time delays (TDNE,
TDEN, etc.) will be performed as part of the Test.
Engine run time of the Test is equal to the Plant Exer-
ciser (Feature 23) programmed setpoint. All Tests are
Failsafe protected.
Test Pushbutton
Programmable setpoints include:
1. Load, No Load Testing, or Disabled and
2. Engine run time is equal to the Plant Exerciser
Feature 23) setting.
Time Delay Emergency Fail (TDEF)
This feature provides a time delay that prevents a con-
nected emergency source from being declared "failed"
in order to override momentary generator fluctuations.
If the Source 2 power source remains in the failed state
then, 0.5 seconds after the TDEF timer expires, the
transfer switch will proceed with the programmed
sequence for re-transfer. This time delay is only imple-
mented when the Source 2 power source is a genera-
tor.
Adjustable 0 - 6 Seconds
Time Delay Bypass Pushbutton
This feature provides a way (by pushing the Help and
Step pushbutton simultaneously) to bypass the TDNE
(Feature 1) and/or TDEN (Feature 2) time delays. The
Time Delay Bypass function, when activated by push-
ing the Help and Step pushbutton simultaneously, will
reduce any or all of the programmed time delay to zero.
Bypass TDEN
This feature provides a membrane pushbutton to
bypass the TDEN time delay.
Bypass TDNE
This feature provides a membrane pushbutton to
bypass the TDNE time delay.
Power Source Annunciation
This feature provides LEDs to give switch position and
power source availability indications.
Provides LEDs to indicate the switch position.
IB01602001T