Operator’s Guide for Rugged-UPS
TM
1252 Series
91-0120 Rev. B 24
© Acumentrics Corporation 2007-2008
PIN
SIGNAL
DEFINITION
1
Low Battery Warning
Goes True if the battery voltage indicates less than 10% hold-up time
remaining.
2
Not Utilized
3
AC Power Good
Goes True if AC power is viable.
4
UPS Shutdown
External Shutdown input; when True shuts down UPS.
5
Signal Ground
Common return for all other signals.
6
Not Utilized
7
UPS Power ON
External power on input when true turns on UPS.
8
Source Fail
Goes True if the Input Power Source (AC or DC) fails or goes outside
acceptable limits and the UPS is operating on its internal batteries.
9
Overtemp Warning
Goes True if the internal temperature of the UPS exceeds a safe upper
limit.
Smart Mode
Below is a list of the commands, their function, and the format the response will be returned. Please note
that the commands are case sensitive. The first command you must enter to start is “G”, this puts the unit
into smart mode. You will also need the following information:
Baud rate 2400
Data bits 8
Stop bits 1
No parity
xon/xoff
The transmit pin is pin #8 the receive pin is pin #2 and pin#5 is the ground reference.
B
??.?? *Battery voltage in volts
C
OK Chirp beeper
G
(C) ACC Copyright message (and first character sent to get into programming mode)
???.?
Line voltage in volts
O
???.? Output voltage in volts
P
???.? Power in percent full load
R
BYE Reset the UPS to simple signaling mode
V
???.? VA in percent full load
8
?? Error register
01 low battery
02 power overload
03 Turn off from low bus voltage
04
05 VA overload
9
?? FF means AC line good, 00 means AC line bad
p
???.? Last power recorded when went into overload)
v
???.? Last VA recorded when went into overload
Pin Out Specifications:
NOTE:
Acumentrics does not warranty the ACG1252 Series devices against damages caused
by cables manufactured by any parties other than the Acumentrics Corporation.