6
[Fault indication]
If any of the following indicators on the front panel remains unlit, the unit is judged failed. In such cases, remove
the cause of the failure, and restore the unit to normal operation.
• Power indicator [AC POWER IN]
• Battery connection indicator [BATTERY CONNECT]
• Charging indicator [CHARGING]
• Battery check indicator [BATTERY CONDITION]
Note
Even if any of these indicators flashes, this does not indicate malfunction.
[Front (with the front panel removed)]
9
7 8
7. DIP switch
8
1
ON
OFF
• Switches 1 and 2 are not used.
Be sure to leave both switches OFF.
• Switches 3 – 8 are factory-preset as shown below.
Switches 3 and 5:
ON
Switches 4 and 6 – 8: OFF
Each switch function is described as follows.
Switch 3
Used for terminating the connection.
Set to ON when no other VX-3150DS unit is
connected or when this unit is the last one of
connected units.
Switches 4 and 5
Set the upper limit value of the internal battery
resistance and battery connection cable resistance
to be monitored for fault detection.
Setting switch combination of 4 and 5 is as follows.
5
ON
OFF
4
ON
25 mΩ
100 mΩ
OFF
50 mΩ*
DISABLE
* Settings compliant with EN 54-4.
Switch 6
Sets the battery charging current.
ON: N/A
OFF: 5.5 A*
* Settings compliant with EN 54-4.
Switch 7
ON: N/A
OFF: Failure detection function enabled.*
Set to OFF when using AC Power IN.
* Settings compliant with EN 54-4.
Switch 8
Places the unit in AC operation mode or battery
mode.
ON: All power outputs are shut down when AC
power fails even if backup batteries are
connected. (AC operation mode).
OFF: Battery is used as backup power supply
when AC power fails. (Battery mode)
Be sure to set to OFF in normal operation.
8. Shutdown button
Pressing this button forcibly shuts down this unit
irrespective of Switch 8 ON/OFF setting of the DIP
switch (7).
9. Reset button
Pressing this button resets this unit.
