6
3. Battery indicator [BATTERY POWER]
Indicates the state of battery usage. Lights red
when the DC power supply is interrupted and
switched over to the backup power supply.
4. Charging indicator [CHARGING]
Indicates battery charging status. Flashes green
while charging, and continuously lights green
after charging completion.
5. Battery check button
Used to check internal resistance state of the
backup battery.
Pressing the button permits measuring of the
internal resistance value. The Battery check
indicator goes off if the measurement exceeds
the specified value.
In automatic mode, the unit performs battery
check every 3 and a half hours.
When the DS-SF LINK is connected to the VM-
3000 system, the resistance measurement is
activated by the equipment, not by the unit itself.
Note
Battery check cannot function for 1 minute after it
has been activated once. In this case, wait a few
minutes, then reactivate it.
6. Battery check indicator [BATTERY CHECK]
In the AC operated system, the internal
resistance value of the battery is measured
automatically or manually to check whether the
battery is faulty. The Battery check indicator
indicates the result.
• Before measurement:
Flashes green at 2-second intervals.
• During measurement:
Flashes green at 1-second intervals.
• Normal:
Lights green.
• Abnormal: Remains unlit.
In the battery-operated system, the battery
voltage is constantly monitored and its level is
indicated by the indicator as shown below
without pressing the Battery check button.
• Lights green:
25 V or more
• Flashes green: 20 – 25 V
• OFF:
20 V or less
7. Thermistor connection terminal
[THERMISTOR]
Detects the ambient temperature of the backup
battery, and performs temperature compensation
for the charging voltage. For the installation
instructions, refer to
8. PS detect switches
Always connect a power supply to the terminals
1 + 2 of the DC INPUT. When connecting a
power supply to the terminals 3 + 4 of the DC
INPUT, set the PS2 switch to ON. When
connecting a power supply to the terminals 5 + 6
of the DC INPUT, set the PS3 switch to ON.
9. AC inlet
Using the supplied AC power cord, connect this
AC line receptacle to a power source of 120 V
AC 60 Hz.
10. Fuse holder
Requires an AC fuse.
Type: 250 V, T6.3 A L
11. Control connector [DS-SF LINK]
This RJ45 connector connects to DS-SF LINK
connector of the VM-3000 system.
12. Setting switch [SETTING]
Select the DC position (factory set) when using
the unit in the VM-3000 system.
When the system power (DC) needs to be
switched off for maintenance, shift this switch to
the "AC" position. (Refer to
13. Ground terminal
14. Battery connection terminal
[BATTERY POWER IN]
Connects to the backup battery.
Recommended battery: Panasonic LC-X1265PG/APG
or YUASA NP series sealed lead-acid battery
15. DC output terminal [DC POWER OUT]
Supplies the DC power to the DC-operated
devices.
16. DC input terminal [PS IN]
Connects to the DC output terminal of the VM-
3240VA or VM-3240E.
Be sure to connect the first VM-3240VA or VM-
3240E amplifier to the terminals 1 and 2, the
second amplifier to the terminals 3 and 4, and
the third amplifier to the terminals 5 and 6.
17. Fuse
Provided in each DC output.
Capacity: Blade-Type Fuse 40 A
[Fault indication]
If any of the Power indicator [MAIN POWER], Battery connect indicator [BATTERY CONNECT], Charging
indicator [CHARGING], or Battery check indicator [BATTERY CHECK] 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.
Note
Even if any of these indicators flashes, this does not indicate malfunction.
