MPS Doc: M359_USER_MANUAL REV G January 17, 2010 Page 24 of 30
Connector J3 Pin Assignment
PIN
I/O
DESCRIPTION
NOTES
1
O
Fault Detect Signal Low
(1)
2
O
Fault Detect Signal High
(1)
3
I
Remote Shutdown
(2)
4
O
Not Battery Operation
(3)
5
System Common Ground
6
N.C.
7
O
Battery Voltage Low
(4)
8
O
UPS On
(5)
9
O
Input Power Loss, Battery operation
(3)
Notes:
1.
Pin 1 will be shorted to pin 2 when any one of the following conditions occurs:
an Over Temperature Condition, a Battery Failure, a Charger Failure, an Internal
UPS Controller Failure.
2.
If the UPS is running on Battery power, connecting 8.1 3.9Vdc between Pin 3 (+) to
Pin 5 (-) will cause the UPS to shutdown (latched). If the UPS is running on AC
input, applying the voltage between Pin 3 and 5 will cause the UPS to enter the
Standby Mode (Ac output is off, all other functions are on.)
Note
: for Special Option
Units M359-1-X-
2
this pin has different function (see MPS Doc M359-1-X-2_SP).
3.
When the UPS operates on battery power, Pin 9 will be shorted to Pin 5 and pin 4
will be open. Otherwise (normal AC input), Pin 4 will be shorted to Pin 5 and Pin 9
will be open.
4.
If the Battery Charge level is low, Pin 7 will be shorted to Pin 5. Otherwise, Pin 7 will
be open.
5.
If the UPS output is OK, Pin 8 will be shorted to Pin 5. Otherwise, Pin 8 will be open.
