Block PC-0524-400-0 User manual

Manual
Uninterruptible
Power Supply
Charge and control unit
PC-0524-400-0
BLOCK Transformatoren-Elektronik GmbH
Max-Planck-Strasse 36–46 • 27283 Verden • Germany
Phone [phone] • Fax [phone]
[email protected] • block.eu

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
1
Table of Contents
1. Order Information................................................................................. 2
2. General Information.............................................................................. 3
2.1 Safety Instructions ........................................................................................ 3
2.2 Qualified Personnel........................................................................................ 3
2.3 Intended Use ................................................................................................ 3
2.4 Disclaimer .................................................................................................... 3
3. Product Description............................................................................... 4
3.1 Block Circuit Diagram .................................................................................... 5
3.2 Dimensions .................................................................................................. 6
3.3 Assembly ..................................................................................................... 7
3.4 Connections and Signaling.............................................................................. 9
4. Initialization........................................................................................ 10
4.1 Operating Statuses /Signaling....................................................................... 10
4.2 Battery tests............................................................................................... 14
4.3 Battery charging ......................................................................................... 15
4.4 Battery operation ........................................................................................ 17
4.5 Battery module buffer times ......................................................................... 20
4.6 Derating..................................................................................................... 21
5. Maintenance........................................................................................ 22
5.1 Operating life of the battery modules ............................................................. 22
5.2 Battery module storage................................................................................ 22

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
2
1. Order Information
The table below shows the order information for the charge and control unit and the battery
modules.
Table 1: Order numbers
Charge and control unit
Variant
Input voltage
Output current
PC-0524-400-0
24 Vdc
40 A
Battery modules
Variant
Input
voltage
Rated output
current
Rated capacity
PVAF 24/0.8 Ah
24 Vdc
max. 5 A
0.8 Ah
PVAF 24/1.2 Ah
24 Vdc
max. 7.5 A
1.2 Ah
PVAF 24/7 Ah
24 Vdc
max. 40 A
7 Ah
PVAF 24/12 Ah
24 Vdc
max. 40 A
12 Ah
PVA 24/3.2 Ah
24 Vdc
max. 20 A
3.2 Ah
PVA 24/7 Ah
24 Vdc
max. 40 A
7 Ah
PVA 24/12 Ah
24 Vdc
max. 40 A
12 Ah
PBAT-1224-025-0
24 Vdc
max. 20 A
2.5 Ah
PBAT-1224-130-0
24 Vdc
max. 40 A
13 Ah
UPS-Control Software
Visualization and configuration software for the charge and control unit.
Free download at www.block.eu.
For depiction and custom configuration of the charge and control unit.

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
3
2. General Information
2.1 Safety Instructions
Please read through these warnings and safety notes carefully before using the device. The
device must be installed by competent and qualified personnel. In the event of malfunction
or damage, switch off the supply voltage immediately and send the device to BLOCK Trans-
formatoren-Elektronik GmbH to be inspected. The device does not contain any service com-
ponents. If an internal fuse is triggered the device probably has an internal defect. The listed
data is provided merely to describe the product and must not be regarded as guaranteed
properties in the legal sense.
2.2 Qualified Personnel
The product associated with this document can only be handled by qualified personnel taking
the documentation for the respective task into consideration - especially the safety and warn-
ing information contained therein. Based on their training and experience, qualified personnel
can guarantee that the usage of the described product satisfies all the safety requirements
and applicable provisions, specifications, norms and laws.
2.3 Intended Use
This device was designed to be installed in an enclosure and is suitable for usage with general
electronic devices, such as industrial control systems, office equipment, communication and
measurement equipment. Do not use this device in control systems in airplanes, trains or
nuclear facilities, where malfunction could lead to serious injuries or have life-threatening
consequences.
2.4 Disclaimer
The content of this publication has been reviewed with the greatest of care to ensure it cor-
responds with the hardware and software described. Nonetheless, there may be discrepancies
between the product and the documentation. Discrepancies can also occur due to the ongoing
development of the product.
For this reason, we cannot guarantee absolute conformity. Should this document contain er-
rors, we reserve the right to make the necessary corrections without prior announcement.

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
4
3. Product Description
The charge and control unit forms an uninterruptible power supply (UPS) when combined with
up to three battery modules and a suitable external power supply. This UPS protects systems
and sensitive data against power failures and voltage fluctuations. Depending on the partic-
ular application, up to 40 A is available without interruption on 12 V and 24 V grids. The
charge and control unit guarantees a reliable supply for industrial PCs.
The intelligent battery management of the UPS combines short charging times with optimized
charging management for the longest possible operating life of the battery modules. In addi-
tion, ongoing monitoring of the battery modules is provided, which warns users when the
remaining operating life of the battery modules is low.
One special feature of the device is the option to change settings using the rotary switch
mounted on the front. This rotary switch allows the user to select a defined buffer period
setting, custom configuration via the interface (only in combination with the UPS Control
Software) or IPC shutdown mode.
Illustration 1: Charge and control unit

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
5
3.1 Block Circuit Diagram
The following block circuit diagram depicts a wiring example.
In order to ensure good communication between the battery module and the charge and
control unit, the chosen interfaces, control and signal lines should be < 3 meters.
In addition, ensure that the control line is not routed parallel to the power cables, otherwise
there is a likelihood of communication disruptions.
Illustration 2: Block circuit diagram of wiring
To achieve the maximum buffer time, up to 3 battery modules can be installed in parallel (see
Chapter 4.5).
When multiple battery modules are used, a control line is affixed to one battery module only.

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
6
3.2 Dimensions
The dimensions of the charge and control unit can be seen in Illustration 3.
Illustration 3: Dimensions of the charge and control unit
The dimensioning for the associated battery modules can be found in the operating instruc-
tions for the battery modules.

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
7
3.3 Assembly
The charge and control unit can be mounted on the mounting rail without the use of tools.
First, rotate the front of the device is turned upward slightly and placed on the profile rail.
Ensure that the device is pushed down until the stop limit. When the device is on the profile
rail, press the underside against the mounting rail until it engages with the catch on the profile
rail (you will hear a ‘click’ sound). To check, gently shake the device to ensure that it is
properly locked into place.
A standard tool, like a flat-head screwdriver, is needed for disassembly. Press down on the
fastening to release the device by lifting the bottom side of the device from the profile rail.
Illustration 4: Mounting
Attention:
Overhead mounting of the battery modules is not permitted.

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
8
To ensure cooling through natural convection, a distance of at least 40 mm from neighboring
devices must be maintained. Direct side mounting of other devices is not permitted.
Illustration 5: Convection cooling
Attention:
Install the device horizontally only. A different manner of mounting is not permitted.

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
9
3.4 Connections and Signaling
No.
Function
Note
1
Power supply input terminals
0.75 –16 mm² (20…4 AWG)
2
Power supply output terminals
0.75 –16 mm² (20…4 AWG)
3
PC interface
USB interface connection
(USB Type B)
4
Signal lights
LED red: Alarm
LED yellow: Bat. Charge /Bat. Mode
LED green: DC OK
5
Rotary switch for setting the buffer period
Buffer period in minutes (1-20)
IPC Mode (PC Mode)
Maximum time (∞)
Custom time
6
Signal and indicating contacts
13: Potential-free common input
for signal outputs 14/24/34
14: Alarm (default = active low)
24: Battery Mode
(default = active high)
34: Battery Charge
(default = active high)
Start: Start-up in battery mode
R1/R2: Remote shutdown in
Buffer mode
C+/C-: Control line for
“Battery Control”
0.2-2.5 mm² (24…12 AWG)
7
Battery connection terminals
0.75-16 mm² (20…4 AWG)

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
10
4. Initialization
After connection the battery modules with “Battery Control” will be automatically recognized
as long as the “C+/C-” control line for communication between the modules is connected with
the correct polarity.
12 V operation
The charge and control unit is suitable for rated voltages of 12 V as well as 24 V (factory
default setting). In order to activate 12 V operation, connection to the UPS-Control Software
is required. 12 V operation for the connected device must first be activated via UPS-Control.
The setting options for activation can be found in the “Parameters” tab under “Advanced
Settings”.
A separate 12 V battery module is required for 12 V operation. The 24 V battery modules
cannot be used in this mode.
Note:
In order for the battery modules to be optimally supplied, operation with connected control
lines and battery modules with “Battery Control” is recommended. Attention should be paid
to the polarity.
Before the module is supplied with power, the battery modules should be completely con-
nected in order to prevent false signaling.
4.1 Operating Statuses /Signaling
The charge and control unit can signal current operating statuses, warnings and malfunctions.
There are three control lights (LEDs) available for function monitoring as well as three poten-
tial-free contacts.
At the time of delivery the signal outputs are configured as follows:
Chart 2: Configured signal outputs
Status
Signal output
Function
No battery operation possi-
ble or battery replacement
recommended or output
switched off
13/14
high-impedance
UPS is in battery operation
13/24
low-impedance
Battery module is being
charged
13/34
low-impedance
The charge and control unit is capable of detecting multiple events that can be linked individ-
ually with the three signal outputs via the configuration and management software. The logic
(inverted / not inverted and/or low-impedance / high-impedance) can also be changed if
necessary.

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
11
Chart 3: Detectable statuses
No.
Description
1
Buffer mode
2
Buffer mode not possible:
Presence test is negative or the connection
for remote switch off (remote input) is not
available
3
Battery voltage very low < 20.4 V
4
Battery charge < 85 %
5
Battery replacement recommended
6
Output is switched off
7
Fuse Mode
8
Hiccup Mode
9
Output current too high
10
Temperature monitoring
11
System error
12
Safety shutdown
The charge and control unit has three overload behaviors that can be selected.
Hiccup Mode
The output cannot be powered up within 5 seconds due to a short circuit or continuous over-
load.
3 startup attempts occur with a wait time of 20 seconds each. If no restart has occurred,
there will be a 5 minute break before the next start attempt.
Fuse Mode
The output cannot be powered up within 5 seconds due to a short circuit or continuous over-
load. The output remains switched off.
To end Fuse Mode, the “Reset Fuse Mode” button must be actuated. This button appears in
the UPS-Control Software in the “Overload Behavior” area as soon as Fuse Mode is enabled.
If the restart is unsuccessful, the next attempt can only take place after a wait time of 20
seconds.
Power Boost/Top Boost
(Only in combination with high-performance battery modules. Not compatible with BLOCK battery mod-
ules)
If a case of overload is detected, the charge and control unit enables increased loads to be
supplied temporarily using the Power Boost.
Power Boost : max. 65A for max. 10 sec.
Top Boost : >65 A for max. 55 ms
The Power Boost in grid operation must be supported by the upstream power supply unit.
Note:
Hiccup Mode is enabled in the factory settings. The UPS-Control Software is required in order
to activate Fuse Mode or Power Boost.
Fuse Mode or Power Boost can be selected in the UPS-Control Software under the “Parame-
ters” and “Overload Behavior” tabs.

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
12
The operating status of the charge and control unit can also be viewed via the LED status
display. The light signals have the following meanings.
Chart 4: Signaling via LED status display
Operating status
Green LED
Yellow LED
Red LED
DC OK
Charge/Bat.
Mode
Alarm
UPS is in normal operation
Output voltage > 20.4 V
Battery is charged and OK
on
off
off
(flashing (1
HZ) battery
replacement
recom-
mended)
UPS is in normal operation
Battery is being charged
(Charging < 85 % of rated capacity)
on
on
off
(flashing (1
HZ) battery
replacement
recom-
mended)
UPS is in normal operation,
no battery operation possible
(Presence test negative or remote shut-
down R1/R2 active)
on
off
on
UPS is in normal operation
Battery replacement recommended
on
off
flashing (1
Hz)
UPS is in
Buffer mode/IPC Mode
Battery voltage > 20.4 V
on
flashing (1Hz)
off
(flashing (1
HZ) battery
replacement
recom-
mended)
UPS is in
Buffer mode/IPC Mode
Battery voltage > 20.4 V
Device is about to switch off
on
flashing (4 Hz)
off
(flashing (1
HZ) battery
replacement
recom-
mended)
Deep discharge protection of the UPS
Buffer mode is ended
(Factory setting battery voltage > 18 V)
off
flashing (4 Hz)
flashing (1
Hz)
Safety shutdown
(No buffer mode possible or remote
shutdown R1/R2 active or no battery
connected)
flashing (1 Hz)
off
on
Safety shutdown
(Input voltage too low or too high, out-
put switched off)
flashing (1 Hz)
off
off
UPS is in Hiccup Mode
off
off
flashing (1
Hz)
UPS is in Fuse Mode
off
off
flashing (4
Hz)
Shutdown Mode
IPC powered down/wait time
off
off
on

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
13
Safety shutdown
The output has been switched off to protect the charge and control unit and consumption.
If, during the switch-on procedure, it is detected that the voltage is too low < 18 V / 9 V at
24 V / 12 V operation, or that the voltage is too high > 30 V / 15 V at 24 V / 12 V opera-
tion, there will be a 60 second wait time for the rated voltage to return. If there is no
change to the voltage after the wait time is over, the system switches to Shutdown Mode.
Shutdown Mode
Shutdown Mode has been activated due to safety shutdown.
If the line voltage does not fall below 3 V within 5 seconds, the unit switches to safety shut-
down again. If the mains voltage does not reach the rated voltage after three passes, the
wait time in Shutdown Mode is extended to 120 seconds.
Buffer mode is stopped (buffer time has expired or buffer mode is stopped due to deep dis-
charge protection) and the mains voltage is not in the rated range. The red LED signals this
status for another 5 seconds, after which the system is switched off.
Startup from the battery
If the unit must be started up externally without connecting to the voltage supply, the charge
and control unit enables startup from the connected battery. By applying 0 V to the “Start”
terminal, the charge and control unit is started in buffer mode and the connected load is
completely supplied by the connected batteries.
If mains voltage is present after the unit is powered up, the charge and control unit automat-
ically switches to Normal Mode.
Note:
In the factory settings, the statuses of the LED displays are simultaneously signaled via the
signal outputs. If there is a custom assignment of the signal outputs, deviating signal sta-
tuses of the LED displays are possible. When creating custom assignments, ensure that
only logical combinations are signaled.

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
14
4.2 Battery tests
The charge and control unit performs various tests of the battery modules, depending on the
operating status. If irregularities are detected the corresponding warnings or malfunctions
are generated.
Charging status
In Normal Mode, the battery module is charged. During charging, the charging level is checked
every 60 seconds.
If the battery modules are charged < 85 %, the “Battery is being charged” status is signaled.
The yellow LED lights up and the “Bat. Charge” signal output is activated (only in factory
settings).
Presence test
The presence test detects whether the battery module is correctly connected and functional.
It is performed in Normal Mode. During the presence test, a small load is temporarily applied
to the battery modules in order to ensure correct connection of the battery module, function-
ality of the accumulators and an intact fuse.
The presence test is performed in Normal Mode with a charging current of < 1 A every 30
seconds, and with a charging current of > 1 A every 180 seconds. In the event of a negative
result the test is performed cyclically every 15 seconds.
If the result of the presence test is negative, the “Buffer mode is not possible” malfunction is
signaled. The red LED lights up and the “Alarm” signal output is activated (only in factory
settings).
Quality test
Accumulators have a limited operating life that can range from < 1-15 years depending on
the model and ambient temperature.
The remaining operating life of the accumulators is dynamically calculated in relation to the
ambient temperature in the battery model, where both “Bat. Control” control lines are con-
nected correctly. This test is performed every 10 minutes in Normal Mode. If the quality test
has a negative result, the “Battery replacement recommended” warning is generated. The red
LED flashes and the “Alarm” signal output is activated.
Note:
It is recommended that the battery module be replaced as quickly as possible after the
warning appears in order to maintain stable, ongoing buffer mode.

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
15
4.3 Battery charging
The smart battery management enables dynamic adjustments, such as setting the optimum
charging current or ensuring temperature-dependent charging voltage for all detected battery
modules with “Battery Control”.
Temperature-dependent charging voltage
By using “Battery Control” to measure the actual temperature directly inside the battery mod-
ule, charging can take place in a temperature-compensated manner. The operating life of the
installed accumulators is thereby sustainably extended. Setting additional charging parame-
ters is not necessary due to automatic detection.
An IU charging characteristic is the basis for charge regulation. This is a 2-level charging
process as depicted below.
Illustration 6: Charging characteristic
Level
Name
Description
1
Main charge
Constant current charging
phase of initial charging current
2
Equalization charge / maintenance charge
Constant voltage charging
phase
Equalization charging end volt-
age
Maintenance charging end volt-
age
Alternatively, in the event of communication cable interruptions between the charge and con-
trol unit and the battery module, the temperature recorded in the charge and control unit can
also be used to guarantee temperature compensation.
Note:
Temperature compensation for battery modules without “Battery Control” is treated like a
communication interruption.

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
16
If battery modules without communication are used, the adjustment of general charging pa-
rameters must be tested and ensured for the specific battery module used.
Illustration 7: Compensation charging characteristic
Automatic temperature compensation can be disabled at any time via the configuration soft-
ware. A customized defined value can be saved for the maintenance charging end voltage.
Factory default charging setting
After the battery modules are detected with “Battery Control”, the following factory default
charging settings are assumed. Battery modules without “Battery Control” are charged in
factory default settings with a voltage of 27.4 V / 13.7 V in 24 V / 12 V operation and a
charging current of 0.8 A.
Chart 5: Factory default charging setting
Version
Charging voltage
Charging current
PVAF 24/0.8Ah
28.8 V
0.2 A
PVAF 24/1.2 Ah
28.8 V
0.3 A
PVAF 24/7 Ah
28.8 V
1.8 A
PVAF 24/12 Ah
28.8 V
3.0 A
PVA 24/3.2 Ah
28.8 V
0.8 A
PVA 24/7 Ah
28.8 V
1.8 A
PVA 24/12 Ah
28.8 V
3.0 A
PBAT-1224-025-0
28.8 V
5.0 A
PBAT-1224-130-0
28.8 V
5.0 A
Note:
A customized charging current can always be specified as a fixed target value via the config-
uration software, regardless of the battery module used.

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.

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
18
Delay time
If the line voltage returns during the configured delay time while in buffer mode, the output
of the charge and control unit is not switched off.
The “Bat. Mode” signal output (which can be configured via the configuration software) re-
mains inactive so that no signal is generated to power down the IPC.
If the input mains supply returns after the configured delay time, the output voltage and
signal output are switched in accordance with the sequence diagram.
-5 - 65,535 seconds adjustable
Shutdown time
After the delay time has lapsed, the “Bat. Mode” signal output is enabled. This signal output
remains activated during the entire configured time period. In this way, the IPC receives the
prompt to power down. During the entire configured time the IPC continues to be supplied
with energy by the charge and control unit.
-0 - 65,535 seconds adjustable
Idle time
After the end of the switch-off time the output voltage is switched off as long as the input
voltage is re-established between the end of the delay time and the start of the wait time.
The IPC thereby receives the 0 - 24 V flank necessary to restart after expiry of the PC idle
time.
If the input voltage is still not present after expiry of the Shutdown time, the charge and
control unit including the output is permanently switched off. After the module is switched
off, an automatic restart with connection of the DC 24 V at the output only occurs with the
return of the input voltage.
-0 - 65,535 seconds adjustable

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]: