Manual EN
Uninterruptible Power Supply
V 1.0
Charge and control units
BLOCK Transformatoren-Elektronik GmbH
Max-Planck-Strasse 36-46, 27283
.
Verden, Germany
31.08.20 / SCH
Subject to technical changes
19
Illustration 8: IPC setting
Remote shutdown in buffer mode
If the connected load at the output of the charge and control unit is not supplied by the battery
module, e.g. in EMERGENCY OFF operation, the buffer mode can be shut off. To do so, the
connection between both contacts R1/R2 of the “Remote” input must be interrupted.
If this connection is not present in normal operation, the module signals the “No buffer mode
possible” malfunction. The red LED glows steadily. In the factory default settings this mal-
function is linked with the “Alarm” signal output so that the contact opens.
Deep discharge protection in buffer mode
In order to protect the installed battery module against deep discharge, the buffer mode is
forcibly ended at a battery voltage Ubat < 18 V-19.2 V / 9 V-9.6 V (configurable deep dis-
charge threshold) in 24 V / 12 V operation. The module switches the output off.
The signaling with flashing LEDs is maintained in the voltage range Ubat < 19.2 V / 9.6 V in
24 V / 12 V after the output is switched off, before the module switches off completely after
the voltage falls below Ubat < 18 V / 9 V in 24 V / 12 V. After the output is switched off, the
output is only switched back on when the input voltage returns.
At a battery voltage Ubat < 20.4 V / 10.2 V in 24 V / 12 V operation, the module signals the
“Battery almost empty” warning by flashing the yellow LED at 4 Hz.
Delay time [s]:
Shutdown time [s]:
Idle time [s]:
