ATS-380
Automatic Transfer Switch
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4
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Built-in one week exerciser timer.
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Permit customer plant engine test with / without
load on a preset period.
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Provide programmable per-exerciser warming
signal.
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Provide a pre-transfer signal to elevator controller
before transfer switch.
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Provide programmable alarm output when
transfer failure.
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There is no need for a PC connection and
programming software. Any and all changes can
be made in the field.
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Provide the source status and fail alarm
indications on the front panel.
1.4 Functions / Features
The primary function of ATS-380 controller is to
accurately monitor power sources and provide the
necessary intelligence to operate a transfer switch
in an appropriate and timely manner.
1.4.1 Operational Simplicity
From installation to programming to usage, the
ATS-380 controller was designed with operational
simplicity in mind. The ATS-380 controller operates
with system voltage from 280 VAC to 480 VAC at 50
or 60 Hz. The user-friendly front panel interface
simplifies routine operation, programming and
setting adjustments.
1.4.2 Standard Features
A variety of programmable features are available to
meet a wide variety of application requirements.
Individual features or feature combinations provide
the Intelligence required tailoring switches to
individual needs. The features can be programmed
by customer via friendly setting procedure,
depending upon customer requirements. The
specific variable set points associated with standard
and factory activated features are stored in a
nonvolatile memory. Activated feature set points are
available for customer adjustment.
Feature 1 :Time Delay Normal to Emergency
(TDNE)
TDNE provides a time delay when transferring the
Normal source to the Standby source. It ensures
stability of the Standby source. Timing begins when
the Standby Source becomes available. ( Refer to
program line 6.)
Adjustable TDNE range : 0 ~ 60 (0 ~ 300 sec)
Feature 2 : Time Delay Engine Start (TDES)
TDES delays the initiation of the engine start circuit
in order to override momentary power outages or
voltage fluctuations of the Normal source. The
TDES timer shall start when the Normal source
becomes unavailable. If the Normal source
becomes available while timing, the TDES timer will
reset. The ATS-380 controller can perform the time
delay engine start function without control power for
30 seconds. ( Refer to program line 7.)
Adjustable TDES range : 0 ~ 6 (0 ~ 30 sec)
Feature 3 : Time Delay Emergency to
Normal (TDEN)
TDEN delays the transfer from the Standby source
to the Normal Source to permit stabilization of the
Normal Source before retransfer is made. Timing
begins when the Normal Source becomes available.
( Refer to program line 5.)
Adjustable TDEN range : 0 ~ 60 (0 ~ 300 sec)
Feature 4 : Time Delay Engine Cool-down
(TDEC)
TDEC permits the generator to continue to run
unloaded after retransfer to the Normal Source has
occurred. Timing begins when the transfer to normal
has been completed. ( Refer to program line 8.)
Adjustable TDEC range : 0 ~ 60 (0 ~ 300 sec)
