4 Check and start operation
4-4 UPS operation mode settings
S8BA-24D24D
□□□
LF
62
No
Item
Description
4
Auto restart mode
setting
Used to set the operation mode to be activated when the UPS automatically restarts
after its shutdown.
▪
Mode A: Restart immediately when detecting that the input power supply is
turned ON after the UPS stops.
▪
Mode B: Restart when detecting that the input power supply turns from OFF to
ON after the UPS stops.
“Mode A” is set by factory default.
【
Description of operation
】
(1) When the input power supply is turned OFF and backup operation is being
performed, a BS signal* is input.
ON
OFF
ON
OFF
ON
OFF
ON
OFF
※1
AC imput
BS signal
※
Power supply
output
(When "modeB" is set)
Power supply
output
(When "modeA" is set)
(2) When the input power supply is turned ON and normal operation is being
performed, a BS signal* is input.
※1
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Power
OFF
Starts up when BS
signal* is OFF
Starts up when input
power supply turns
from OFF to ON
AC imput
BS signal
※
Power supply
output
(When "modeB" is set)
Power supply
output
(When "modeA" is set)
5
Input sensitivity
setting
Lets you set the voltage sensitivity by which the UPS can detect an input power
supply error.
▪
Standard voltage sensitivity: Perform backup operation when the input voltage is
not in the specified range ±10%.
▪
Low voltage sensitivity: Perform backup operation when the input voltage is not in
the specified range ±12.5%.
▪
High voltage sensitivity: Perform backup operation when the input voltage is not
in the specified range ±5%.
“Standard voltage sensitivity” is set by factory default.
Voltage sensitivity
Low
sensitivity
Standard
sensitivity
High
sensitivity
Voltage for shifting to backup
operation (high)
15%
12.50%
10%
Voltage for returning to
commercial operation (high)
12.50%
10%
5%
Voltage for returning to
commercial operation (low)
-12.50%
-10%
-5%
Voltage for shifting to backup
operation (low)
-17.50%
-15%
-10%
6
Logic of Remote
ON/OFF signal
setting
Lets you set the logic of remote ON/OFF signal.
▪
Stop when circuit is closed: Stop the UPS when the circuit between the terminals
is closed.
▪
Stop when circuit is open: Stop the UPS when the circuit between the terminals is
open.
“Stop when circuit is closed” is set by factory default.
