Specifications

I.B. ATS-I005
Page 17
Effective 6/00
Source should fail and the Normal Source is available,
the IQ Transfer will initiate a transfer to the Normal
Source.
Bypass Timers
A momentary closure on Pins 9 and 10 of Connector J4
will bypass the timer for TDNE and/or TDEN.
Go To Neutral
A maintained closed contact on Pins 11 and 12 of
Connector J4 forces the controller to switch to the neu-
tral position, thereby disconnecting the load from both
sources.
Manual Re-Transfer
With manual operation set, momentary closure on Pins
13 and 14 of Connector J4 allows IQ Transfer to pro-
ceed with a re-transfer operation at the operators discre-
tion. Should a failure of the emergency source occur
while waiting for the manual return, the re-transfer pro-
ceeds automatically.
Emergency Inhibit
This input is located on Pins 15 and 16 of Connector J4
and is enabled with the Load Shed From Emergency
option. If the contact is opened and the load is connect-
ed to Source 1, no action will be taken. If the contact is
opened when Source 1 is not available, and the load is
connected to Source 2, the IQ Transfer will go to the
neutral position with both sources disconnected from the
load. If the contact is opened when Source 1 is avail-
able, and load is connected to Source 2, the IQ Transfer
will do a complete transfer from Source 2 to 1.
INCOM Sub-Network
Pins 17, 18 and 19 of Connector J4 provide for the
INCOM (Industrial Communications) interface. Refer to
Communications Mode in this section for more informa-
tion.
4.4 INCOM SUB-NETWORK
Pins 17, 18 and 19 of connector J4 provide for the
INCOM (Industrial Communications) sub-network inter-
face. From the IQ Transfer a single twisted pair of wires
can remotely communicate with devices up to 7500 feet
away. Using the same technology and protocol as our
IMPACC communications network this system will allow
the IQ Transfer to be a master to Addressable Relay IIs
that accomplish the Pre-transfer and Load Sequencing
features. The sub-network can be enabled for either or
both of these features. The Addressable Relay IIs are a
product that is part of the IMPACC family of communi-
cating products. The addressable Relay II is a form C
relay that includes 2 status inputs, a LED to show the
status of the relay and a LED to show the communica-
tions transmit status. Figure 4-1 shows a typical configu-
ration that has both the Pre-transfer and Load
Sequencing features enabled.
4.4.1 PRE-TRANSFER SUB-NETWORK
The Pre-transfer signal as previously described allows for
loads, typically an elevator, to communicate with the IQ
Transfer. The important design features of this configura-
tion are that the relay can be located up to a mile away
and it reports back its status and the state of input IN1.
The Addressable Relay II must be set for:
• 1200 BAUD rate
• WATCHDOG feature disabled
• RELAY PULSE feature disabled
• Address set for 001
• Reportback input IN1
The IN1 connections of the relay are the reportback
input to the IQ Transfer and should be connected to a
contact output from the elevator controller. Refer to the
Addressable Relay II and the elevator controller manu-
facturer’s instruction literature for proper control power
and input signal voltage levels. When proper operating
voltage is present between the IN1 input pins, a positive
status will be reported back to the IQ Transfer. During
normal operation the relay’s contact will be de-ener-
gized. When a transfer is pending and after the TDNE
(or TDEN) timer has counted down (if enabled), the IQ
Transfer will send a communications close command to
the relay. Once the relay has closed, the IQ Transfer will
start the Time Delay Pre-transfer count down timer to
delay the transfer operation until the counter has fin-
ished. After the timer has started, the IQ Transfer will
continuously poll the relay for the status of its input cir-
cuit. If the relay returns a positive status of IN1, the IQ
Transfer will assume that the elevator has arrived at the
proper floor and opened the doors. The IQ Transfer will
then abort the remaining Time Delay Pre-transfer timer
and continue with the transfer operation. Once the
transfer is complete, the IQ Transfer will return to the
relay and send a communication open command.
This option is only functional if closed and In-phase
modes are disabled. The Pre-transfer sequence only
occurs if both sources are available. If only one source
is available, the Pre-transfer sequence is bypassed.