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
17
4.4
Battery operation
When the line voltage fails, the unit switches to buffer mode without interruption. The energy
required to maintain the DC 24 V / 12 supply voltage is taken from the battery module. The
level of the output voltage is directly dependent on the charging level and the capacity of the
accumulators.
Buffer mode is signaled by the slow flashing of the yellow LED (approx. 2 Hz). In the factory
default settings this occurrence is linked with the “Bat. Mode” signal output.
The charge and control unit supports not only the maintenance of supply voltage for a con-
figurable period of time, but also the controlled shutdown and restart of an industrial PC (IPC)
- see chapter “Buffer mode in IPC Mode”.
For software-based shutdown of an IPC, the rotary switch must be set to “PC Mode” or the
settings can be adjusted in the Windows software “UPS Control”. If the charge and control
unit is connected with the IPC, the cyclically sent data from the UPS activates shutdown after
a configurable period of time.
Switch-on threshold for buffer mode
If the input voltage drops below the switch-on threshold, energy is provided from the battery
modules without interruption. The charge and control unit will then be in buffer mode.
The switch-on threshold is pre-configured to 22 V in the factory default settings. The switch-
on threshold can be changed via the UPS-Control configuration software.
-
21 V - 26 V adjustable (24 V operation)
-
10.5 V - 13 V adjustable (12 V operation)
Buffer mode with adjustable buffer time
In the default factory settings the module is pre-configured for the maximum (unlimited)
buffer time. With this configuration the entire energy of the battery module is used to maintain
the DC 24 V supply voltage. The buffer time can be set via the selection switch.
-
1 ... 20 minutes
-
Unlimited until buffer mode is ended through deep discharge protection.
-
Custom time via configuration software
-
PC mode, see chapter “Buffer mode in IPC mode”
Buffer mode in IPC mode
In IPC mode, the UPS module works in a chronological sequence that ensures the controlled
shutdown and reliable restart of an IPC. Changeable times can only be adjusted via the con-
figuration software. The signal for powering down the IPC is transmitted by the potential-free
signal contact selected in UPS-Control.
The chronological sequence of “Delay time”, “Shutdown time” and “Idle time” is clearly de-
fined in each case. With the option of switching off the output even if mains power returns
during buffer mode, an IPC can be reliably restarted after being powered down.
Note:
In order to enable IPC Mode, the rotary switch on the charge and control unit must be set
to PC Mode. Only then does the IPC-configuration appear in the UPS-Control Software.
