24
6. COMMUNICATION INTERFACE
RS-232 INTERFACE
A 9-pin female SUB-D connector is provided on the UPS’s rear panel to provide signals of the UPS to
the computer. Using the DELTA Smart 2000 software, the user can check the power status. The detail
signals are as follows:
DRY CONTACT
The sub-D communication port (9-pin female type) is used to power on/off the UPS by external control
signal. UPS also can transfer its status through this port.
PIN
STATE
PIN 8, 3
PIN 1,3
PIN 6, 3
NORMAL
OPEN OPEN OPEN
BACK UP
CLOSE
OPEN
LOW BATTERY
CLOSE
CLOSE
OPEN
FAULT OPEN
OPEN
CLOSE
Pin assignment:
FIG. 5-2
Load level
Battery status
Battery level
UPS mode
Input voltage
Output voltage
Input frequency
Temperature inside unit
Set shut-down delay time
Enable / Disable beeper
Remote shut-down
Pin assignment:
Pin 2: TXD (Transmit Data)
Pin 3: RXD (Receiving Data)
Pin 5: GND (Signal Ground)
Pin 7: PNP (Signal Receiving)
DRY CONTACT TABLE
= INACTIVE: STATE MAY BE “OPEN”OR” CLOSE” CONDITION.
Hardware:
Baud Rate ----------------2400 bps
Data Length -------------- 8 bits
Stop Bit ------------------ 1 bit
Parity --------------------- NONE
NO
NC
COM
NO
NC
COM
Imin.>3.3mA
AC 250V/8A
DC 12V
>2 sec
12 V
0
±3V
NO
COM
NC
THE CAPACITY OF
DRY CONTACT:
LOW BATTERY
REMOTE SHUTDOWN
SIGNAL FROM EXTERNAL
UPS FAULT
Summary of Contents for 11KVA
Page 1: ......
Page 28: ...P N 5011316802 ...