4.7.1 Set the transfer voltage threshold
The voltage threshold of the transfer can be adjusted between 150 to 230V with the turning knobs (23). From factory this value is 200V. Most appliances can work on this voltage. When the Input voltages reach the selected value on turning knob, the inverter switches off and the AC INPUT goes directly on the AC OUTPUT. When the voltage INPUT is less of 20V the value set, the transfer is stopped and the OUTPUT switches back on the inverter.
Note : Don’t use the turning knobs “TRANSFER” (23) to adjust the AC OUTPUT voltage ! This is only it’s only a voltage threshold level to enable or disable the transfer.
4.7.2 FAST (UPS)- MODE for the Transfer Switch
The quick and break free Transfer mode is programmed with a slide switch „Transfer De-lay“ OFF, which is on the front side (cable connections side).
The aim of the HP-COMPACT is to supply the appliance with a break-free alternating volt-age. When the incoming voltage AC IN no longer matches values which have been set with the Turning Knob 23, the inverter switches on at once. The transfer is carried out in 0.02 seconds. This quick transfer ensures a break-free function for most appliances. If you have an alternating voltage back at the input AC IN, transfer system starts up again with-out any break, and the inverter is stopped.
4.7.3 Delayed mode of the Transfer System
The delayed mode of the transfer system „Transfer Delay ON“ is programmed with the slide switch on front with the cable connections. The HP-COMPACT provides a break-free alternating voltage for the appliance. A quick transfer switch is not always sensitive nor is it always desired. For example, when the appliances are operated by a small back-up generator. An overload of a short period on such a generator, i.e. start of a vacuum cleaner etc., has the effect of decreasing the voltage for a short time. As in such cases the transfer to the Inverter is not desired, the transfer system can be programmed with a delay. When the slide switch (Transfer delay) is in the „On“ position, the transfer to the inverter takes place with a delay of 5 seconds. If the voltage falls below 100Vac, the transfer takes place without delay ! The transfer switching to the Inverter takes place without any break.
4.8The Multifunctional Contact
In the HP-COMPACT there is a built-in programmable power relay. The potential-free change-over contact (NO – NC) of this power relay is connected to the screw terminal AUX CONTACT.
Maximum Contact load: 230Vac / 12Vdc / 24Vdc / 16A ! > 36Vdc / 3A !
With the Push Button 21 „AUXILIARY CONTACT“ the contact can be manually switched on or off independently from programming and from the operating situation. The LED 5 “Contact active” shows the status of the contact. The drawing up the screw terminal “AUX CONTACT” is the inactive position mode, LED 5 “Contact active” off.
The switching on and off of this contact can be freely programmed for every operating situation of the HP-COMPACT witch situation is indicated with a LED. There is no limitation to its application and it is left to your wishes as to where and how you would like to use it. The example and the setting of this contact are explained in chapter 5.4.
In factory we program this for a dysfunction alarm. The contact is active when one of these situations is detected:
