Eaton ATC-600 Instructions for installation, operation and maintenance - page 15
IB ATS-1005
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Instructional Booklet
Effective: March 2010
Page 15
Instructions for Installation, Operation and Maintenance of the
Eaton ATC-600 Automatic Transfer Switch Controller
ATC-600 provides for eight individual control input signals on ter-
minal 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 con-
tact 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
ATC-600 to inhibit further operation.
Go To Emergency
This input is located on Pins 7 and 8 of Connector J4. When the
external contact is closed, a transfer to the Emergency Source will
be initiated. If the Emergency Source should fail and the Normal
Source is available, the ATC-600 will initiate a transfer back to
the Normal Source.
The Go To Emergency input is only active when either Source 1 or
Source 2 is preferred. This input is not active when the Preferred
Source selection is set to None.
The Emergency Inhibit input takes priority over the Go To Emer-
gency input if both inputs are activated at the same time. In this
case, the generator will start but a transfer to the Emergency
Source will be inhibited until the Emergency Inhibit input is de-
activated.
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 neutral position, thereby dis-
connecting the load from both sources.
Manual Re-Transfer
With manual operation set, momentary closure on Pins 13 and 14
of Connector J4 allows ATC-600 to proceed with a re-transfer
operation at the operators discretion. Should a failure of the emer-
gency source occur while waiting for the manual return, the re-
transfer proceeds automatically.
Emergency Inhibit
This input is located on Pins 15 and 16 of Connector J4 and is
enabled when the Emergency Inhibit optional feature (36) is
enabled. The contact is closed for normal operation. Opening this
contact will activate the Emergency Inhibit input.
If the Emergency Inhibit contact is opened when the load is con-
nected to the Normal Source, no action will be taken if the Normal
Source is available. If the Normal Source is not available, an
immediate transfer to the neutral position will occur.
If the Emergency Inhibit contact is opened when the load is con-
nected to the Emergency Source, the ATC-600 will transfer the
load to the Normal Source if it is available. If the Normal Source is
not available, an immediate transfer to the neutral position will
occur.
The Emergency Inhibit input is only active when either Source 1
or Source 2 is preferred. This input is not active when the Pre-
ferred Source selection is set to None.
The Emergency Inhibit input takes priority over the Go To Emer-
gency input if both inputs are activated at the same time. In this
case, the generator will start but a transfer to the Emergency
Source will be inhibited until the Emergency Inhibit input is de-
activated.
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 information.
4.4 INCOM Sub-Network
Pins 17, 18 and 19 of connector J4 provide for the INCOM
(Industrial Communications) sub-network interface. From the
ATC-600 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 sys-
tem will allow the ATC-600 to be a master to Addressable Relay
IIs that accomplish the Pre-transfer and Load Sequencing fea-
tures. 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 communicating 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 9 shows a typical configuration 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 ATC-600. The
important design features of this configuration 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
NOTICE
CERTAIN INPUTS MAY NOT BE OPERATIONAL DEPENDING ON USER
PURCHASED OPTIONS.
NOTICE
IF POWER IS LOST TO THE ADDRESSABLE RELAY II IT WILL POWER-
UP IN THE DE-ENERGIZED (OPEN) STATE.