Auxiliary Contact as generator starter

STUDER INNOTEC

XP-COMPACT

are automatically stored and the XP-COMPACT switches back to normal operating condition.

5.4.3Auxiliary Contact as generator starter

As per the battery capacity

When in the programming of the Auxiliary Contact, the Battery Capacity (LED 15-18) is used as a condition, you must then take note of the following requirements.

If you have to start an emergency back-up supply with a battery having a certain residual capacity, then two battery levels must be programmed. The first (i.e. Battery 25% LED 17) for the starting or activating the Auxiliary Contact and the second (i.e. Battery 100% LED15) for stopping or disabling the Auxiliary Contact. Programmed like this the Auxiliary Contact works with the lowest set condition and stops when it has reached the highest programmed condition through charging.

Example: start of a generator with the XP-COMPACT

In order to program the auxiliary contact to start at 25% and to stop at 75% of the battery state-of-charge, here is the procedure to follow:

− Press the key AUX. CONTACT (Program) 21 during at least 2 seconds. Then the states will be displayed blinking (factory settings LED’s 10/11/12/13). As these states are not wished for the start of the generator, they must be disabled.

− With the key (select) 20, select the LED’s to disable (the active LED’s are blinking) and disable them with the key 19 Change Status. Select the other LED’s to switch off with the key (select) 20 and switch them off with the key 19 Change Status until all are disabled.

− Then select the LED 17 with the key (select) 20 and activate the contact with the key 19 Change Status. The generator will start once the LED 17 switches of.

− Then select the LED 16 with the key (select) 20 and activate the contact with the

key 19 Change Status. The generator will stop once the LED 16 switches on.

− If no key is activated during 30 seconds, the normal operation states are displayed automatically again.

For a control the key Program can be pressed at least 2 seconds. The values set are displayed blinking.

5.4.4Auxiliary Contact as Twilight Witch (with solar charger option)

The Auxiliary Contact of the XP-COMPACT can also be used as a twilight switch, i.e. to operate automatically the exterior lighting. With it the connected solar modules measure the light intensity. If the XP-COMPACT is operating without solar modules and a twilight-switching function is desired, you can connect small solar cells with the nominal voltage of the XP-COMPACT on to the SOLAR terminals for the purpose of measuring the light intensity. To function as a twilight-switch the Auxiliary Contact must be programmed so that the condition SOLAR CHARGE (LED 3) is active. Programming must be carried out in steps and in accordance with the description for the programming of the Auxiliary Contact.

5.4.5 Power cut of the second priority loads

The auxiliary contact can also be used to cut the power of less priority loads when the battery state of charge is lower than a given threshold. In that case, only one of the battery state of charge, or the “transfer” function will be programmed as power cut criteria.

The second priority loads will be supplied only when the generator is ON or when the battery has a sufficient threshold.

5.4.6 Manual operating of Auxiliary Contact

XP-COMPACT V5.4

24/77