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4 Operations
LED display
[DC ON]
No.
LED
(Green)
(Yellow)
11
Blink 2
12
Blink 2
13
14
Note 1. The LED display becomes
2. The LED display becomes
3. The LED display becomes
4 - 4
Charge
UPS
[BATT]
[ALERT]
/Dis-
output
LED
LED
charge
(Red)
ON
Charge
Blink 2
ON
---
(*1)
ON
---
(*2)
Blink 2
(*1)
---
---
(*2)
(OFF) when the unit charging operation is stopped.
(Blink 4) during unit charging operation.
(Steadily ON) during unit backup operation.
Input
power
Description
supply
ON
Battery not connected or
incorrectly connected, or
battery life counter counted
up to limit. (Displayed
during normal operation
only.)
ON
A battery abnormality was
detected.
ON
UPS life counter counted
up to limit. (Displayed
during normal operation
only.)
---
An UPS abnormality was
detected.
S8BA-series Uninterruptible Power Supply (UPS) User's Manual (U726)
Procedures
Replace the battery unit. By
purchasing a new battery
unit, you (the customer) can
replace the battery yourself
(refer to 5-2 Replacing the
battery unit on page 5-4).
Replace the UPS.
Stop the unit, discontinue the
input power supply, and then
connect the unit to the input
power supply again. If there
is no change in the display
contents, the unit has an
error. Replace the control
unit.
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