Operation and maintenance
After installation, the power supply unit only requires regular reading of error indications.
Output voltages and indication levels are factory set.
Do not connect the battery negative pole (B–) with the negative poles of the outputs OUT1 (–) and OUT2 (–)*.
* • Do not connect the minus pole of the battery (B-) to the minus poles OUT1 and OUT2 (-) for each other 1.5 ÷ 5.5 A and
to the negative terminals OUT1 ... OUT5 (-) for version 7.5 ÷ 12 A
The battery pack is connected to the power supply unit only when mains voltage is present and when the battery voltage exceeds 21.6 V. In case of battery failure (the terminal voltage of an individual battery lower than 10 V), the battery is not detected. The alarm indicator light ALARM will flash rapidly when the voltage is between these limits, but the battery will not be connected.
In battery operation mode in case of mains failure, the batteries are automatically disconnected by the low voltage disconnect device (LVDD) when the batteries are discharged below 21 V. After LVDD disconnection, the power supply unit still draws a very small current for internal needs.
The batteries must therefore not be left in this state for any length of time, as they can then be discharged to such a low voltage that they will not be reconnected when the mains voltage returns.
If the power supply unit is to be disconnected from mains voltage for a long time, the batteries must be disconnected. Otherwise, deep discharge can occur, which shortens the life of the batteries.
Battery life shortens drastically with increasing temperature. Every 8 to 10 °C increase in temperature halves battery life.
CNBOP and VdS recommend battery replacement every 4 years of operation, regardless of the condition of the batteries.
The tests described in the section First start, (see page 11.), should be repeated once a year to verify the operation and condition of the power supply unit.
Appendix
Table 7: Indicator diodes on the outside of the power supply cabinet (the door) | |
|---|---|
230 V AC | Green |
0 | Mains voltage missing, battery disconnected (voltage-free state) |
1 | Mains voltage is present, power supply unit/charger is working |
0/1 flashes | Battery operation: mains voltage missing or power supply unit/charger defective*1) |
ALARM | Yellow |
0 | No errors |
1 flashes | Battery operation: mains voltage missing or power supply unit/charger defective*1) Battery circuit break/battery missing or any battery has a pole voltage lower than 10 V and the batteries have been disconnected by the undervoltage protection (LVDD) Battery circuit resistance too high (more than 250 mΩ) or battery fuse blown Load output fuse tripped Fuse in additional fuse module tripped (if connected) Low system voltage - lower than 22 V when mains voltage is present *2) |
0/1 short blinks | External alarm or internal alarm, (if tamper contact is installed). |
0/1 short blinks | Battery detected (U > 10 V) but the battery voltage is too low (U < 21.6 V), which is why the undervoltage protection (LVDD) prevents connection. |
*1) Failure of the power supply unit/charger is detected no later than 10 minutes after the failure occurred (checking is done at the same time as the battery circuit resistance is measured).
*2) This condition can occur when mains voltage returns and battery charging has just started.
Table 8: Indicator diodes on the device motherboard | ||
|---|---|---|
MAINS (mains) Green | 0 | Mains voltage is missing |
1 | Mains voltage available, power supply unit/charger works | |
0/1 flashes | Mains voltage present, power supply unit/charger error *1) | |
BAT (battery) Yellow | 0 | Battery status correct |
1 or | Battery circuit resistance exceeds 250 mΩ (incl disconnected battery or broken battery fuse*2) | |
0/1 flashes | Disconnected battery or broken battery fuse*3. |
*1) Failure of the power supply unit/charger is detected no later than 10 minutes after the failure occurred (checking is done at the same time as the battery circuit resistance is measured).
*2) Measurement of the battery circuit resistance, including checking for battery circuit interruption and tripped battery fuse, takes place every 10 minutes. When excessive battery circuit resistance is detected three times in a row, the indicator lamp BAT lights up and the relay indicator GEN FLT is triggered. This monitoring function allows the system to be checked (eg for maintenance purposes) by temporarily disconnecting the battery circuit without triggering any fault indication, if the battery circuit is reconnected within 2 minutes.
*3) To test this alarm, the battery and battery fuse need to be disconnected and then a single measurement as step *2 describes needs to be made. This allows testing of function without generating a GNT FLT (if reconnection occurs within 2 minutes).
Table 9: Indication relays (0 = relay not pulled, 1 = relay pulled) | |
|---|---|
MAIN FLT | Mains voltage error |
0 | – Mains voltage is missing (only fault in the supply from the mains, does not react to fault in the power supply unit/charger) |
1 | – Mains voltage is present, power supply unit/charger is working |
GEN FLT | General error |
0 | – Always when the alarm indicator light ALARM is lit or flashing *1), *2) |
1 | - No errors |
*1) Failure of the power supply unit/charger is detected no later than 10 minutes after the failure occurred (checking is done at the same time as the battery circuit resistance is measured).
*2) When the mains voltage returns after a mains voltage failure, this indication is given with a 5 s delay.
About translation of this document
User manual and other documents are in the original language in Swedish. Other languages may be machine translated and/or not reviewed, errors may occur.