Universal Bypass Switch Unit
UNB
Operation Manual
UNB2357E / Page 12 (34)
6.2.5.1
Inverter
priority
configuration
In the operating mode inverter-priority the priority is inverter
as source 1 and the substitute-mains as source 2. This is also
the adjusted standard-configuration.
6.2.5.2 Mains-priority
configuration
In the operating mode mains-priority The AC-mains is as
source 1 and the inverter (as „substitute- mains “) as source
2.
6.3 Monitoring/Adjustment
6.3.1
Input “over-voltage monitoring “;
source 1 (priority-source)
The input-voltage of source 1 is monitored and compared
continuously with a reference-curve; this is programmed in
an EEPROM. The analogous sensitivity around the nominal-
input-voltage is variable and adjustable within a certain area
(see settings of the analogous-sensitivity). The voltage-
variation for the supervision decides the attitude in the
parametric-menu. The indication of this monitoring-function
takes place over the LED „source 1 “.
6.3.2
Input “over-voltage monitoring”;
source 2 (substitute-sources)
For the substitution-source, only the presence of the voltage
is monitored, not however the sine wave form. If the
voltage-level of the substitution source is within the nominal-
voltage area the LED „source 2 “ is on. As positive
6.3.3
STATIC BYPASS SWITCH SBS-
Programming
Following functions can be chosen in the parametric menu of
the STATIC BYPASS SWITCH SBS:
Load blocked on inverter
Load blocked on mains
Mains-priority-operation
Inverter-priority operation *
Switchover delay 0,5-10ms (2,5ms *)
Nominal-input voltage 220/230*/240VAC
Mains frequency 50*/60Hz
*suppliers fixings