Wärtsilä JOVYTEC P 700VA
– 3kVA
BAX 3345
- 29 -
12.
Relay card (optional)
There is also the option to fit the UPS unit with a relay card
(optional)
.
This relay card provide voltage-free contacts for external further use. These contacts are designed a standard
as closing contacts, that is they close in the case of a fault. There is also a possibility of designing these
contacts as opening contacts by reversing a jumper on the relay card. The relay card also makes the electronic
– STOP – function available. This function is deactivated as standard over a bridge on the relay card. If the
electronic-STOP functionality is used then the bridge should be removed from the plug and an external switch
(opener) is to be clamped on the rear plug. Actuation of the external electronic STOP switch causes the output
of the UPS unit to be switched voltage-free and the UPS unit shuts down. In order to supply consumers with
voltage again it is necessary for the electronic STOP switch to be reset and for the UPS to be restarted. There is
still a
voltage
inside and at the terminals even after the electronic STOP function was activated.
The messages which are available on the relay card are as follows:
Pin
Description
I/O type
Contact setting
Normal
condition
In the case
of a fault
1
UPS fault (Internal fault or short circuit),
causing no further output power
Output
1
– 5
opened
closed
2
Group alarm; the following alarms are
integrated together:
Fault in output voltage
Bus fault
Over temperature
Overload
Overloading
Battery test failed
Battery charging device
– fault
Output power by means of bypass is still
possible
Output
2
– 5
opened
closed
3
GND for output
4
Remote shutdown (Battery Operation)
Input
3
– 4
opened
closed
5
GND (reference point for the relay
actuation)
6
Bypass active
Output
6
– 5
opened
closed
7
Battery discharged
Output
7
– 5
opened
closed
8
Free
9
Power failure
Output
9
– 5
opened
closed
When using opening contacts the contact positions must be set appropriately opposed to each other!!
