Western Co WRM15 dualB User manual

WRM15
dualB
USER MANUAL
Rev. 1.0
04/28/2016
This document is the property of WESTERN CO. Ltd. - All rights are reserved - Reproduction and use of information contained Within this document is forbidden without the written consent of WESTERN CO. Ltd.
7
WRM15 dualB
PV charge controller for dual battery
WRM15 dualB is a device to charge up to two batteries from PV module that
powers and controls the load connected to its output. It is specially designed for
application on boat or camper where there are two batteries: the first one is for
feeding the on-board service and the other for starting the engine and engine
services. WRM15 dualB normally gives priority to the battery 1 (on-board
services) and then manages the battery 2 (starter). Battery 2 is still constantly
monitored and, if its voltage drops below a certain minimum voltage level, it
starts to charge.
To guarantee the charge of both batteries without running the engine both
during rest periods with passengers on board and during the parking period
without people on board, it is advisable to size properly the PV module
connected to the board system .
WRM15 dualB implements a charging circuit MPPT and step-down type, which
guarantees the maximum power charging from the PV module with any module
that has a maximum power voltage (Vmp) higher than the battery voltage and is
within maximum voltage limits (Voc) under 100V.
WRM15 dualB is monitored through an application installed on Android / iOS
smartphone that connects via Bluetooth® to the device and allows to visualize
the operating status and set some of its functionalities.
•MPPT Technology (Maximum Power
Point Tracker).
•Dual battery management: Charging
priority to the primary battery and
then the secondary.
•Wide range of PV module voltage:
V
PAN
max 100V
•Maximum PV module power: 250Wp
for batteries at 12V and 500Wp for
batteries at 24V.
•Suitable for: GEL, sealed, lead acid
and lithium-ion batteries.
•Charging voltage compensated in
temperature.
•12V / 24V battery voltage auto
detection
•18 load management programs
•Modbus on RS485 communication
port (provided by Western CO. WBUS
communication protocol)
•Remote control w reless
Bluetooth®and appl cat on
Andro d/ OS.
•USB port for the charge of the mobile
phone.
•Battery protection to prevent reverse
polarity.
•Low battery protection.
•Overtemperature protection.
•Overload protection.
•IP20
Western CO. Srl
Via Pasubio, 1
63074 San Benedetto del Tronto (AP)
63074 - Italy
[email protected]
www.western.it

WRM15
dualB
USER MANUAL
Rev. 1.0
04/28/2016
This document is the property of WESTERN CO. Ltd. - All rights are reserved - Reproduction and use of information contained Within this document is forbidden without the written consent of WESTERN CO. Ltd.
8
Installat on overv ew
Pic1. Installation overview
5) Blocking diode: prevents battery discharge to the PV module during the night, that is when the PV module has no
voltage.
6) Charging circuit with maximum power point track of the PV module.
7) Diverter circuit that charges the primary battery (battery 1) or the secondary battery (battery 2).
8) Output charging control circuit that is always powered exclusively by the primary battery (battery 1)
Electr cal connect on
6) Install WRM15 dualB in a dry and adequately ventilated place. Fasten on a non-combustible surface and position so
to leave a space without obstacles of at least 10 cm in the proximity of the device to allow cooling by natural air
convection.
7) Connect in the following order: the load , the sensor for measuring battery temperature (supplied), PV module and
finally the primary battery (battery 1) as in pic. 2. At the connection of the battery the controller turns on and begins
to operate. Use appropriate cable sections as indicated in pic.2. WRM15 dualB automatically recognizes the nominal
battery voltage, and adapt its operating thresholds.
8) Connect the secondary battery (battery 2). One flash of LED battery 2 indicates that the secondary battery has been
recognized properly. If it does not, this means that the secondary battery is not recognized and will be never loaded.
It is not compulsory to connect the secondary battery so, if not connected, the WRM15 dualB will load only the
primary battery.
9) Connect the Bluetooth® modem to the controller and test the connection through the application on smartphone.
10) Set the management program for the appropriate load to the application using the Bluetooth® connection on a
smartphone or tablet.

WRM15
dualB
USER MANUAL
Rev. 1.0
04/28/2016
This document is the property of WESTERN CO. Ltd. - All rights are reserved - Reproduction and use of information contained Within this document is forbidden without the written consent of WESTERN CO. Ltd.
9
Pic.2 Connection diagram
5) USB port to charge a mobile phone or a similar device.
6) Port to connect WBLE wireless modem.
7) Dip switch to set address on the communication bus WBUS
8) Port to connect WBUS communication bus.
Pr mary
Secondary
BATTERY TEMPERATURE
W reless modem
1
2
3
4
Rear v ew

WRM15
dualB
USER MANUAL
Rev. 1.0
04/28/2016
This document is the property of WESTERN CO. Ltd. - All rights are reserved - Reproduction and use of information contained Within this document is forbidden without the written consent of WESTERN CO. Ltd.
1
0
Not f cat ons
CHARGE Functionalities The number of flashes displayed indicates the current intensity from the PV
module.
Led off: indicates that the charging current (iCharge) < 0.5A
1 flash every 8 seconds: 0.5A <iCharge <3.0A
2 flashes every 8 seconds: 3.0A <iCharge <6,0A
3 flashes every 8 seconds: 6,0A <iCharge <9,0A
4 flashes every 8 seconds: 9,0A <iCharge <12,0A
5 flashes every 8 seconds: iCharge> 12,0A
Status
red / green
Functionalities Indicate the system status
1 red flash every 8 seconds: Low-Battery Protection actived on the primary battery
and the load is off.
It is needed to wait for the PV module to charge the battery after which the
protection is disabled (standard operating mode).
2 red flashes every 8 seconds: overload protection activated. This means that the
load consumption is more than 15A and then to protect the load output it has
been disabled. After about 2 minutes of protection, the output charge is
reactivated.
3 flashes every 8 seconds: over-temperature protection. Load and charging circuit
disabled.
It is needed to wait until the temperature inside the case decreases below 60 °C
after which the protection is automatically deactivated.
Always on: it indicates that the load output is active
Always off: it indicates that the load output is switched off
BATTERY 1 Functionalities Primary battery status
Always on: indicates that the primary battery is charging.
A flash every 4s indicates that the primary battery is connected but not charging
BATTERY 2 Functionalities Status of the secondary battery
Led always off indicates that the secondary battery is not connected.
A flash every 4s indicates that the primary battery is connected but not charging
Always on: it indicates that the secondary battery is charging
4s
4s
4s
4s
8s
8s
8s
8s
8s
8s
8s
8s

WRM15
dualB
USER MANUAL
Rev. 1.0
04/28/2016
This document is the property of WESTERN CO. Ltd. - All rights are reserved - Reproduction and use of information contained Within this document is forbidden without the written consent of WESTERN CO. Ltd.
1
1
D mens ons
Tensine fine carica in funzione della temperatura sistema a 12V
13,5
14,0
14,5
15,0
15,5
16,0
-10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60
Temperatura °C
Tensione fina carica Volt
SEAL
FLOOD
Tensine fine carica in funzione della temperatura sistema a 24V
27,0
27,5
28,0
28,5
29,0
29,5
30,0
30,5
31,0
31,5
32,0
-10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60
Temperatura °C
Tensione fina carica Volt
SEAL
FLOOD
Pic. 6 Curve of the charging voltage compensation V
ch
in function of battery temperature
Rendimento
η
η η
η =Pbat/Ppan
Tensione di pannello [V]
91%
92%
93%
94%
95%
96%
97%
98%
99%
100%
10,00
20,00
30,00
40,00
50,00
60,00
70,00
80,00
90,00
Ibatt = 5,0A
Ibatt = 10,0A
Ibatt = 15,0A
91%
92%
93%
94%
95%
96%
97%
98%
99%
100%
30,00
40,00
50,00
60,00
70,00
80,00
90,00
Ibatt = 5,0A
Ibatt = 10,0A
Ibatt = 15,0A
Rendimento
η
η η
η
=Pbat/Ppan
Tensione di pannello [V]
Tensione di batteria 12V
Tensione di batteria 24V
Pic. 7 Efficiency of RM15 dualB in function of the module voltage for system at 12V and 24V .

WRM15
dualB
USER MANUAL
Rev. 1.0
04/28/2016
This document is the property of WESTERN CO. Ltd. - All rights are reserved - Reproduction and use of information contained Within this document is forbidden without the written consent of WESTERN CO. Ltd.
1
2
Electr cal features
Nominal battery voltage 12V
Nominal battery voltage 24V
Min
Typ
Max
Min
Typ
Max
Battery voltage
Vbatt
10V
17V
20V
34
V
Open circuit module voltage
Vpan
20V
-
100V
40V
-
100V
Module voltage
pan
-
-
15A
-
-
15A
Maximum module power
Pmax
-
-
250W
-
-
500W
Load output voltage
Vload
-
Battery
voltage
-
-
Battery
voltage
-
Load voltage
Iload
-
-
15A
-
-
15A
Charging vo
ltage at 25 ° C SEAL program (default)
Vch
14.4V
28.8V
Charging voltage at 25 ° C program FLOOD
Vch
14.8V
29.6V
Charging voltage at 25 ° C program LEO
Vch
14.4V
28.8V
Charging voltage for Li program (*)
Vch
14.0V
-
14.7V
28.0V
-
29.4V
Compe
nsation of Vch function of battery temperature (Tbatt)
Vtadj
-
-
24mV / ° C
-
-
-
48mV / ° C
-
Low battery voltage (adjustable)
Vlb
10.8V
11.4V
(default)
12.2V
21.6V
22.8V
(default)
24.4V
Low battery output voltage
Vout_lb
12.4V
13.8V
13.8V
24.8V
27.6V
27.
6V
Detection voltage during the day (adjustable)
Vday
2.4V
4.8V
(default)
9.6V
4.8V
9.6V
(default)
19.2V
Detection voltage: VNIGHT Vday =
-
0.8V
Vn ght
1.6V
-
8.8V
4.0V
-
18.4V
Voltage for Float phase (Adjustable)
VFlt at 25 ° C
13.2V
13.4V
(default)
14.
4V
26.4V
26.8V
(default)
28.8V
Phase Absorption Time (Adjustable)
TAbsorpt on
1.0 h
3.0 h
(default)
4.0 h
1.0 h
3.0 h
(default)
4.0 h
Self
-
consumption
sleep
12.7mA
(Vbat
14,0V)
17,7mA
(Vbat
28,0V)
Working temperature:
Tamb
-
10°C
50 ° C
-
10°C
50 °
C
Dissipated power
Pd ss
20 W
29 W
Section to terminals
1mm
2
10mm
2
1mm
2
10mm
2
Protection degree
IP20
IP20
Weight
-
515 g
-
-
515 g
-
Warranty
Western CO. Srl guarantees the good quality and good design of its own Products obliging itself, during the warranty period of 5
(five) years, to repair or replace at its sole discretion, for free, those defective parts owing to poor quality of material or defect in
workmanship.
The defective product must be returned to Western Co. Srl or to the company delegated by Western Co to make product support, at
customer’s expenses, together with a copy of the invoice both for repairing and warranty replacement. The costs of re-installation
of the equipment will be borne by the customer.
Western CO. Srl will bear the transport expenses of the repaired or replaced product. The warranty does not cover Products that,
according to our discretion, are defective due to natural wear, showing damages caused by incompetence or negligence of the
customer, imperfect installation, by tampering or other interventions different by the instructions supplied by us. The warranty is
not valid also in case of damages coming from:
- transport and/or incorrect storage of the product.
- force majeure or catastrophic events (frost to temperatures below -20 ° C, fire, flood, lightning, vandalism, and so on).
All of the abovementioned guarantees are the sole and exclusive agreement which supersedes any proposal or agreement, oral or
written, and any other communication made between the manufacturer and the purchaser in respect of the above. For any dispute
the jurisdiction is Ascoli Piceno.
Waste d sposal
Western CO. as manufacturer of the electrical device herein described and in accordance with DL 07/25/2005 n 151, informs the
consumer that this product, once abandoned, must be delivered to an authorized collection centre or, in case of purchase of an
equivalent equipment, it can be returned free of charge to the distributor of the new equipment. The penalties will be applied by
individual Municipalities.
WESTERN CO. Srl
V a Pasub o 1
63074 San Benedetto del Tronto (AP)
Phone: [phone] Fax [phone]
e-mail: [email protected]
web: www.western.it