Operating instructions

6
Caution: Pay special attention when completing the shock protection circuit: the yellow-green PE
protective conductor of the power supply cable must be connected from one side to the terminal
designated in the power pack enclosure. The operation of the power pack without the shock
protection circuit properly completed and technically operable IS NOT ADMISSIBLE!
The operation without such circuit threatens with damage to the equipment or electric shock.
4. Connect the leads of the consumers to joints OUT + and - of the joint box on the power pack board [6].
(Optionally connect the MZN1 module between +OUT- and load).
5. Activate the 230 V AC power supply and insert the power network fuse protecting the transformer primary
circuit [9]. Check the optical signalling of the power pack operation. The output voltage of the unloaded
power pack is equal to ~ 13.8 V DC. The voltage may fluctuate from 12.8 V to 13.8 V DC during battery
charging.
6. Connect the battery in accordance with the designations [3] with colours. After this operation is completed,
the voltage appears in the output of the power pack, which is signalled by the green diode on.
7. Perform the power pack test checking the optical signalling [4] [5]:
- the disconnection of the voltage 230 V AC through the removal of the fuse from the transformer socket will
be signalled by the red diode going off.
8. Following the assembly and checking the correctness of operation, the enclosure may be locked.
3. Handling and operation.
3.1. Power pack operation signalling.
The unit is equipped with the optical signalling of operation states:
Red diode:
- on - the power pack is supplied with voltage 230 V
AC
- off - the power pack is not supplied with voltage
230 V AC
Green diode:
on – DC voltage at the output of the power pack
off – DC voltage missing at the output of the power
pack
- on - off
Description
Comments
Proper state of operation
Output overloaded or short
circuited
- check cabling and consumers
- if the battery is connected, check
battery fuse
The absence of power
supply from the power
network, operation from
battery
- check transformer fuse
The absence of voltage at
the output
- check cabling and consumers
- check transformer fuse
- check battery fuse
flickers
Output overloaded
- lower the consumption of current by
consumers
Tab. 4 – Optical signalling.