Specifications

I.B. ATS-I005
Page 5
Effective 6/00
Optional Feature 5E: Overvoltage Monitoring for
Source 2 (2OVD, 2OVP)
This feature function the same as Optional Feature 26C,
except for Source 2 instead of Source 1.
Optional Feature 8C/8D: Transfer Time Delay
Bypass
This factory programmed feature allows an external
pushbutton input to be used to bypass the timer for
Standard Feature (TDNE) or Standard Feature (TDEN)
individually, or both simultaneously. This feature is usu-
ally used in testing when it is not desirable to wait for
completion of the timing sequence.
Optional Feature 9B: Maintenance Selector
Switch (MSS)
Marked “OFF”, “ON”. This feature provides selector
switch disconnection of control to the transfer motor
thus allowing testing of the transfer switch control logic
circuitry without initiating load transfer. Manual discon-
nection is standard on all Cutler-Hammer transfer
switches. Positioning the MSS in the “OFF” position iso-
lates the control circuit from the transfer motor, permit-
ting manual operation of the transfer switch or testing of
logic circuitry without load transfer.
Optional Feature 10: Preferred Source Selection
(PRF SRC)
This feature permits the selection of either source (1 or
2) as the Preferred or Normal Source. The Normal
Source is the source that the switch always looks to for
availability so that it can transfer to it. When two genera-
tors are selected and the switch has transferred to the
Emergency Source, the IQ Transfer will constantly be
waiting and attempting to start the generator on the
Preferred Source so that it may return to it. IF NONE is
chosen, the Preferred Source or the Normal Source will
be the source that is presently attached to the load.
Optional Feature 16: Overcurrent Protection
When integral overcurrent protection is provided for
either one or both sources, the need for separate
upstream overcurrent protection, in most instances, is
eliminated. With this factory installed feature in the IQ
Transfer, further automatic transfer operation is locked-
out until the appropriate source breaker is reset.
Optional Feature 23: Plant Exerciser (EXER)
This feature provides for the automatic test operation of
the generator for a pre-selected weekly interval. When
the test is running, pressing and releasing the Engine
Test pushbutton will cancel the test. The day of the
week, hour, and minute that exercising is desired can be
programmed into the IQ Transfer. The type of test,
whether a load transfer or just an engine test, can also
be selected. Load testing is fail-safe. If the generator
fails during testing for any reason, the IQ Transfer will
signal the transfer switch to return to normal.
Optional Feature 26C: Overvoltage Monitoring for
Source 1 (1OVD, 1OVP)
This feature constantly monitors Source 1 for an over-
voltage condition. When the Source 1 voltage rises to a
value equal to or above the overvoltage dropout setting,
the source will become unavailable. The source’s volt-
age will then have to drop to a value that is equal to or
below the pickup setting to become available again.
Optional Feature 26D: Go To Emergency
This feature enables an external contact closure to initi-
ate a transfer from the Normal Source to the Emergency
Source. If the external contact is closed and the
Emergency Source fails, the IQ Transfer will transfer the
load back to the Normal Source.
Optional Feature 26E: Underfrequency Monitoring
for Source 1 (1UFD, 1UFP)
This feature constantly monitors Source 1 for an under-
frequency condition. When the Source 1 frequency
drops to a value equal to or below the underfrequency
dropout setting, the source will become unavailable. The
source’s frequency will then have to rise to a value that
is equal to or above the pickup setting to become avail-
able again.
Optional Feature 26F: Overfrequency Monitoring for
Source 1 (1OFD, 1OFP)
This feature constantly monitors Source 1 for an over-
frequency condition. When the Source 1 frequency rises
to a value equal to or above the overfrequency dropout
setting, the source will become unavailable. The
source’s frequency will then have to drop to a value that
is equal to or below the pickup setting to become avail-
able again.
Optional Feature 29G: Type of Operation (Selectable
Automatic or Manual)
This feature provides a two position selector switch
marked Auto/Manual which permits the selection of
automatic or manual operation. It includes devices for
manual operation when the selector switch is in the
manual position.
Optional Feature 29J: Type of Operation (MANTR)
This feature provides for a selection between an auto-
matic transfer and re-transfer mode or a manual push-