Specifications

I.B. ATS-I005
Page 16
Effective 6/00
When the preferred source is connected and the auto-
matic transfer switch is operating normally, the
Automatic LED blinks green and no message appears in
the display window. In the event of a power failure, the
display automatically becomes active showing the sta-
tus of timers relative to an alternate source transfer.
Once the alternate source becomes available, the trans-
fer is made consistent with pre-programmed features. In
a similar manner, transfer back to the preferred source
is made once the preferred source is again available.
System conditions relative to the sources and the load
are clearly indicated by the LED type mimic bus.
4.3 CONTACT INPUTS
As described in Section 2, the rear access area pro-
vides for access to all input connections. Each contact
input provides 50 volts at 10ma. Refer to Figure 2-3 for
a graphical representation and position of all input con-
nections.
Certain inputs may not be operational depending on
user purchased options.
IQ Transfer provides for eight individual contact input
control signals on terminal block J4. as follows:
Source 1 Auxiliary Close
This input is located on Pins 1 and 2 of Connector J4
and wired to the Source 1 breaker auxiliary contact that
is closed when the Source 1 breaker is closed.
Source 2 Auxiliary Close
This input is located on Pins 3 and 4 of Connector J4
and wired to the Source 2 breaker auxiliary contact that
is closed when the Source 2 breaker is closed.
Lockout
This input is located on Pins 5 and 6 of Connector J4.
The contact is closed to indicate that both the Source 1
and Source 2 breakers are available. Opening of this
contact signifies a tripped circuit breaker or circuit
breaker non-availability which will cause IQ Transfer to
inhibit further operation.
Go To Emergency
This input is located on Pins 7 and 8 of Connector J4
and is enabled with the Area Protection option. When
the external contact is closed, a transfer to the
Emergency Source will be initiated. If the Emergency
SECTION 4: OPERATION
4.1 GENERAL
This section specifically describes the operation and
functional use of the IQ Transfer. It is divided into three
main categories:
• Automatic Mode
• Test Mode
• Programming Mode
The practical use of and operation within each specific
category will be discussed. In this section it is assumed
that prior sections were reviewed and that the operator
has a basic understanding of the hardware. It is impor-
tant that the operator have a good grasp of the function-
al use of the operator panel as covered in Section 3.
This will make movement within each category and
between categories a simple task. This familiarity will
quickly put the unsurpassed capabilities of IQ Transfer
at the operator’s fingertips.
It is important to remember that IQ Transfer contin-
ues to provide programmed protection and automat-
ic operation no matter which mode the device is in
at the time it is called upon to operate.
Refer to Appendix D for an overall view of IQ
Transfer operations in the form of a Menu Tree.
4.2 AUTOMATIC MODE
The Automatic Mode of IQ Transfer provides for auto-
matic transfer and re-transfer from source to source as
dictated by the features supplied and their programmed
setpoint values. It provides a summary of IQ Transfer’s
intelligence and supervisory circuits which constantly
monitor the condition of both normal and emergency
power sources thus providing the required intelligence
for transfer operations. These circuits, for example,
automatically initiate an immediate transfer of power
when power fails or voltage levels drop below a preset
value. Exactly what IQ Transfer will initiate in response
to a given system condition depends upon the combina-
tion of standard and selected optional features. Refer to
Paragraphs 1.3 and 1.4 for IQ Transfer’s standard and
optional features.
NOTICE
NOTICE
NOTICE