Universal Bypass Switch Unit
UNB
Operation Manual
UNB2357E / Page 13 (34)
An alteration of the nominal-voltage and –frequency is only
stored after a restart of the STATIC BYPASS SWITCH SBS.
6.3.4
Settings of analogous-sensitivity
The monitoring sensitivity of the priority-source (source 1)
can be set via the parametric menu. The wider this setting is
made, the more sensitive the STATIC BYPASS SWITCH SBS
reacts on voltage-drops of the monitored source. The
sensitivity covered is chosen in the area from -6/+9 to -
15/+22,5% on the set input nominal-voltage. Factory
adjusted the unit setting is +15/-10%.
6.3.5
Indication
The STATIC BYPASS SWITCH SBS-status as well as all
possible malfunction is shown via LED's on the front and as
general fault alarm via a potential-free relay-contact.
As optional extra a second, free programmable indication
relay is available.
The allowable relay contact loads are as follows:
U max.
= 110 V DC I. zul. < 0.45 A DC
U. max.
= 60 V DC I. Zul. < 1 A DC
U. max.+
= 24 V DC I. zul. < 8 A DC
6.3.6
CAN-Interface / serial interfaces
Via the front-located connectors for the data-network via
CAN-Bus the communication of the STATIC BYPASS SWITCH
SBS with the connected inverters and a possible
implemented supervision monitoring device (MU1000C) can
take place.
Additional, another serial interface via an optional interface-
component (RS232, RS485, RS422 ) is also available.
Following information will be available via the CAN as well as
additional optional Interface:
Status-information of the SBS according to point 6.3.5
Availability of the connected inverter
Availability of the substitute mains
Input - and output current of the SBS (real-time)
Input - and output current of the SBS
Battery-voltage at the SBS
Frequency of source 1 and source 2
Input- and output value of the connected inverter
History of the last 50 events with date and time