TSi Power Corporation MC80043,4,5,6,7,8,9,50
ATS-800 Series Automatic Transfer Switches Rev. 3, April, 2018
TSi Power Corporation Proprietary Information
21
(9)
The green LED must remain ON and the red alarm LED and alarm sound must turn ON
(the yellow LED will already be OFF if the unit is operating from the Primary AC source).
(10) Turn on the Backup input circuit breaker. After several seconds, the ATS must return to
the normal operating condition as noted in (5).
4.2
TESTING WITH ACTUAL LOAD EQUIPMENT (SUCH AS COMPUTERS, PLC,
TELECOM EQUIPMENT, ETC.)
If the above test steps (1) through (10) are performed and the ATS is functioning properly, then
actual load equipment can be connected to (or plugged into) the output terminal block (or
computer can be connected (or actual equipment to be powered by the ATS Series).
CAUTION: To avoid electric shock or accidents, ensure that both Primary & Backup
AC sources are de-energized before making the wire connection to the AC sources.
4.2
REMOTE STATUS / ALARM MONITORING
4.31
A DB-9 female connector in the rear of the unit provides status / alarm signals for remote
monitoring of the status of the ATS.
Primary AC Input Status DB-9 Pins are:
_5__
NO
_1__
NC
__2_
COM
Backup AC Input Status DB-9 Pins are:
_6__
NO
_3__
NC
_4__
COM
4.32
When Primary AC Input is present and IN SPECIFICATION, there is an OPEN circuit
between pin
_5
and pin
2
. When Primary AC input is OUT OF SPECIFICATION, there is a
CLOSED circuit between pin
5
and pin
2
.
4.33
When Backup AC Input is present and IN SPECIFICATION, there is an OPEN circuit
between pin
_6_
and pin
_4_
. When Backup AC input is OUT OF SPECIFICATION, there is a
CLOSED circuit between pin
6
and pin
4
.
4.34
Maximum voltage and current that can be used for monitoring the status and alarm of the
ATS Series is 120 VDC (VAC), 1 A (maximum DB-9 connector rating).
4.4
REMOTE ENABLE FUNCTION
4.41
A DB-9 female connector in the rear of the unit provides pins for remotely turning the ATS
on and off. The standard ATS unit has the remote enable disabled. The remote enable
can be enabled by performing the following steps.
4.42
Make sure both Primary and Backup AC sources to the ATS are de-energized.
4.43
Remove the ATS case cover.
4.44
Locate and remove the jumper from JP13 (ATS ENABLE). See figure 8.
4.45
Replace ATS case cover. The ATS can now be turned on by a short across Pin 8
(REMOTE ENABLE) and Pin 9 (REMOTE COM) of the DB-9 connector. The ATS is
turned off by an open across Pin 8 (REMOTE ENABLE) and Pin 9 (REMOTE COM) of
the DB-9 connector.
