AMDAR BERMAD BR735D-UPS User manual

The above data may be changed without prior notice
BR735D Extended Eng R1.0 1509
-1/7-
Amdar Ltd.
SURGE ANTICIPATING UPS CONTROLLER
BR735D-UPS
The Surge Anticipating UPS Controller, together with the Surge Anticipating Control
Valve –SACV, are designed to protect pump unit systems by discharging pressure surge waves,
caused by sharp liquid flow velocity changes at random pump operation stops. Normally, such
situation is encountered under Utility Power Supply failure, which usually generates undesired
negative liquid pressure. The UPS senses such conditions and triggers an appropriate response in
order to energize the SACV which, when being activated, discharges this undesired negative
liquid pressure.

The above data may be changed without prior notice
BR735D Extended Eng R1.0 1509
-2/7-
Amdar Ltd.
SAFETY INSTRUCTIONS
Read the Operating Instructions carefully before installing, connecting (wiring), operating
or servicing the controller.
Only qualified and fully trained personnel may carry out installation, maintenance and
repair work on this equipment.
During installation work on equipment the power supply must always be disconnected.
WARNING! Opening enclosure expose hazardous voltages. Always refer service to qualified
personnel only.
Do not install substitute parts or perform any unauthorized modification of the product.
Return the product to AMDAR for service and repair to ensure that safety features are
maintained.
INSTALLATION INSTRUCTIONS
Attention!
Read the following information before installing.
It is the customer’s responsibility to ensure that qualified mechanical and
electrical technicians install the product.
Before beginning installation disconnect all electrical power to the equipment.
Unpacking
After unpacking the unit, check it for compliance
and any damages which may have occurred
during shipment. This product's ingress protection
is IP54. Verify all seals are undamaged.
Mounting
The SAVC is designed to be mounted on an outer
wall. The unit is attached to the wall with three
screws, as shown in figure 1.
When attaching the SAVC, fix the upper single
bolt to the wall and hang the SAVC to mark the
location of the two remaining bolts. Please notice
that the two remaining bolts are behind the cover
of the electrical wiring area.
Full external dimensions are in Figure 4. Please allow extra 50mm from the glands for the
electrical wiring cables.
Electrical Connection
During normal operation, the SAVC is connected to dangerous voltage AC circuits.
Before performing any electrical connection, disconnection or handling, ensure that
power supply to the equipment is disconnected.
Remark: Please notice that for safety, a new product is supplied with one disconnected battery
wire. Open the partly transparent cover and connect it to the battery.
Figure 1

The above data may be changed without prior notice
BR735D Extended Eng R1.0 1509
-3/7-
Amdar Ltd.
Description of Operation
Electrical wiring overview
Inputs and outputs of the SAVC are as follows: (Refer to Figure 2)
Supply voltage: 230VAC / 50Hz. (Marked L1, N)
Feedback input. (230VAC / 50Hz) from pump start contactor coil. (Marked A1, A2)
Solenoid activation output: 24VDC. (Marked solenoid 24VDC +, -)
Alarm Relay (standard marked) (Marked 11, 12, 14)
RS485 Communication interface. (Marked A, B, Sh.)
Aux. output voltage 24VDC / 100mA for external display (Marked 24VDC/100mA +, -)
Note: External display (Model AM736) is optional, rendering RS485 interface and Aux. output
voltage optional.
Operation of the SAVC
The SAVC is constantly
monitoring the input
voltage. While the input
voltage is OK, PWR LED is
constantly lit green. When
the input voltage is not OK,
PWR LED is extinguished.
The SAVC is monitoring pump activation using feedback input.
For all modes of error and warnings, please refer to Table 1. This table is also located on the rear
side of the partly transparent cover.
There are two modes of solenoid operation:
(select one using program interface)
Mode P1 (default)
When encountering uncontrolled (unwanted) power failure while the pump is active; the SAVC
enacts the electrical solenoid.
Mode P2
When encountering pump shutdown, even if the supply voltage is OK, the SAVC enacts the
electrical solenoid.
Solenoid activation:
Solenoid activation time is for a period of 6÷180 seconds.
(Programmable TSOL, Default: 60 seconds)
While the solenoid is enacted:
The display shows the remaining time of the solenoid operation.
TSOL LED is lit orange. In case of solenoid fault, the TSOL LED is flashing red.
Solenoid activation can be delayed for a period of 0÷30 seconds.
(Programmable TD1, OFF (Default) or 0÷30 seconds)
While in solenoid activation delay:
The display shows the remaining time until solenoid is enacted.
TD1 LED is lit.
Remark: Termination of solenoid operation before TSOL timer ended is possible by pressing
"Test" pushbutton for a period of one second.
Figure 2

The above data may be changed without prior notice
BR735D Extended Eng R1.0 1509
-4/7-
Amdar Ltd.
Batteries
Two 12V, 5AH maintenance free Lead-Acid rechargeable type batteries are utilized to activate the
SACV as well as to energize the electronic control circuits under Power Failure conditions. The
batteries are serially connected in order to provide 24V.
The SAVC incorporates charging circuitry for the batteries.
Charging method is Floating charge in constant voltage.
The SAVC is equipped with 3 test points (refer to Figure 3)
in order to actively monitor battery voltage and set battery
charge voltage.
Test points are "Charge Voltage", Battery Voltage and the
ground referenced point "COM".
Charge voltage can be set using "Charge Potentiometer".
Remark: Max. charge current is 300mA.
The SAVC is constantly monitoring Battery voltage and
charging parameters and provides warning using the
display and BATT. LED. (Refer to Table 2)
Since the main issue of the UPS is its ability to activate,
under specified circumstances, two fully charged batteries,
they must be protected from being completely or even
partially depleted. As such, at the end of the user defined operation period (6 to 120 sec.), the
electronic circuit disconnects the SACV and also itself from the batteries.
Such approach assures that
even under extremely long
Power Failure periods, which
are quite uncommon, the
batteries still keep adequate
energy, in order to be ready
for an additional Power Failure
without being charged first.
Self Test
Pressing the "Test" pushbutton for 3 seconds starts self test. The display shows flashing "tst".
While in test mode, the SAVC enacts the solenoid for the duration set by TSOL, after activation
delay TD1. At the end of the test, the SAVC returns to normal operation mode.
If while in test procedure a real fault occurs, the SAVC completes the test operation with the
preset time delays and when it concludes, the SAVC disconnects the solenoid and the batteries.
Self test can be started only when supply voltage is OK.
Alarm Relay
The alarm relay is activated in the following faults:
Power Supply input fault
Solenoid coil is disconnected or shorted.
Battery: Short circuit, Low voltage or Battery wires disconnected.
Communication fault (When communication is set to "ON")
Figure 3
Table 1
Table 2

The above data may be changed without prior notice
BR735D Extended Eng R1.0 1509
-5/7-
Amdar Ltd.
Programming
Programmable parameters:
Description
Parameter
Designator
Values
Default
Solenoid activation delay
TD1
(td.1 on display)
OFF, 0÷30 Seconds
OFF
Solenoid activation time
TSOL
(t.SoL on display)
6÷180 Seconds
60 Seconds
Solenoid operation MODE
SoL.A
(As on display)
P1 or P2
P1
Alarm relay operation mode
rELY
(As on display)
Normal(1) or
Reverse(2)
Normal
Communication test with display
unit (Model AM736)
485.t
(As on display)
ON or OFF
OFF
(1) Normal –The relay is activated in alarm mode and deactivated otherwise.
(2) Reverse –Fail safe mode. The relay is deactivated in alarm mode and activated otherwise.
Programming Flowchart

The above data may be changed without prior notice
BR735D Extended Eng R1.0 1509
-6/7-
Amdar Ltd.
External Dimensions (mm) (Figure 4)
Technical Data
Supply Voltage 230VAC10% 50/60Hz (115VAC optional)
Time Delay –TSOL 6÷180 Seconds.
Time Delay –TD1OFF or 0÷30 Seconds.
Alarm Relay Changeover Contact: Floating
Nominal Current: 5A @ 220VAC under resistive load
Max. Values: 5A @ 30VDC, under resistive load
Load Current Up to 2 solenoids of 24V / 10W
(Under Fully Charged Batteries)
Fuse F1 4A internal fuse protects the output to the solenoid.
Self Consumption 6VA
Net Weight 4.2kg
Operating Temperature 10C-50C
Protection Class IP54

The above data may be changed without prior notice
BR735D Extended Eng R1.0 1509
-7/7-
Amdar Ltd.
Wiring Diagram