Specifications

I.B. ATS-I005
Page 3
Effective 6/00
the IQ Transfer display from function to function or step to
step within a function. Three LEDs at the top of the face-
plate provide an immediate indication as to the device’s
operational mode. An integral Help Mode provides imme-
diate user assistance in the form of English language
message displays through the use of a front panel Help
pushbutton.
With a Product Operated Network Interface (PONI), the
IQ Transfer is communications ready and compatible
with other devices in the IQ Family of products. The
Communication Module (PONI) is available in three ver-
sions, the INCOM PONI, RS-232 PONI and PONI
Modem. Reliable two-way communications can be pro-
vided over a twisted pair communications network. With
the INCOM PONI, IQ Transfer is compatible with the
Cutler-Hammer IMPACC system.
1.4.2 STANDARD AND OPTIONAL 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 to tailor switches to individual
needs.
The features are factory activated, depending upon cus-
tomer requirements. The specific variable setpoints
associated with standard and factory activated features
are stored in a nonvolatile memory. Activated feature
setpoints are available for customer adjustment. Any
feature not selected and factory activated cannot be
viewed or adjusted.
With respect to their use in this document and as
they relate to automatic transfer switch operation,
the following words or phrases are defined:
Available
A source is defined as available when it is within its
undervoltage/overvoltage/underfrequency/overfrequen-
cy (if applicable) setpoint ranges for the nominal voltage
and frequency setting.
Fails
A source is defined as failed when it is outside of its
undervoltage/overvoltage/underfrequency/overfrequen-
cy (if applicable) setpoint ranges for the nominal voltage
and frequency setting.
Normal Source
The Normal Source is defined as the source that is pre-
ferred. The Preferred Source setting allows the operator
to select Source 1, Source 2 or NONE as the Preferred
Source. If NONE is chosen, the Preferred Source or the
Normal Source will be the source that is presently
attached to the load. If the Preferred Source feature is
not available from the factory, the default is set as being
Source 1 as the Preferred and Normal Source.
Emergency Source
The Emergency Source is defined as the source that is
not preferred. If NONE is chosen for the Preferred
Source setting, the Emergency Source will be the
source that is presently not attached to the load.
Therefore, in this condition after a transfer, what was the
Normal and Emergency Sources will switch between
Source 1 and 2. If the Preferred Source feature is not
available from the factory, the default is set with Source
2 as the Emergency Source.
Option #
For personnel who are familiar with previous transfer
switch controller option specifications, an attempt at
equivalence to some of the features is made.
IQ Transfer features with a brief description follow. The
actual programmable setpoints for each feature are cov-
ered in Section 5.
Standard Feature: Time Delay on Engine Start
(TDES)
TDES is used where the source is an engine generator.
It delays initiation of the engine start circuit in order to
override momentary power outages and/or fluctuations.
This timer and the associated engine start circuit will
operate with or without control power. There are two
separate start circuits, one for each source when appli-
cations of two generators are selected, although the
same TDES timer value is used for both. When one
generator is selected, this timer’s engine start circuit will
operate on generator 2 for source 2. If the source that is
being transferred to has a generator and that source is
already available, the TDES timer is bypassed.
Standard Feature: Time Delay Normal to
Emergency (TDNE)
TDNE delays the transfer to the Emergency Source to
permit stabilization of the Emergency power source
before the transfer is made. This timer will begin the
countdown from its setting value when the Emergency
Source becomes available. If the Normal Source should
become available during the countdown of this timer,
the timer will be aborted.
NOTICE