vetus CANNS500 Digital Battery Monitoring Shunt Instruction Manual

Installation manual
Digital Battery Monitoring Shunt
CANNS500

Safety

Warning indications
The following warning indications are used in this manual in the context of safety:
DanGer
Indicates that great potential danger exists that can lead to serious injury or death.
WarninG
Indicates that a potential danger that can lead to injury exists.
Indicates that the usage procedures, actions etc. concerned can result in serious damage to property. Some
CAUTION
indications also advise that a potential danger exists that can lead to serious injury or death.
Note
Emphasises important procedures, circumstances etc.
Symbols
Indicates that the relevant procedure must be carried out.
Indicates that a particular action is forbidden.
Pass on the safety instructions to other users.
General rules and laws concerning safety and accident prevention must always be observed.

Introduction

This manual gives guidelines for the installation of the VETUS CANNS500 digital battery monitoring shunt. The CANNS500 measures the DC voltages of up to four  atteries bounded in series (batteries of the same battery bank) bounded in series and includes a shunt for current measurements. Using all sensor data available, the shunt calculates the state of charge of the battery bank and the remaining discharge time. Several types of batteries are supported and can be configured through any Wi-Fi connected device with a general web browser. The CANNS500 comes standard with two temperature sensors (VETUS codes: CANNSTR02 (2 metre), CANNSTR05 (5 metre). The quality of the installation is decisive for the reliability of the system. It is therefore imperative that the steps given in the installation instructions are followed in full and checked afterwards. Unauthorised modifications shall exclude the liability of the manufacturer for any resulting damage .

Installation

WarninG
Never work on the electrical system while it is energized .
When connecting the device, follow the order as shown in this document.
3 .1 Connections overview

3 .2 Battery bank
For safety and best performance use batteries of the same brand, voltage and capacity. For diagrams see chapter 5, pages 49 to 53.
WarninG
Do not mix batteries of different brands, voltages or capacity .
3 .3 Mounting location
The CANNS500 must be installed on a solid surface. See principal dimensions page 54.
WarninG
Do not place the CANNS500 in a wet, damp or high temperature compartment.
WarninG
Do not place the CANNS500 in a compartment containing any possible fuel or flammable substances .
3 .4 Connecting the CANNS500
See chapter 5, pages 49 to 53 for the various connection diagrams.
Keep the following order when connecting the device to the battery bank. Ensure that all switches are turned off, all individual fuses are disconnected (taken out), and the main battery bank minus is disconnected from the battery bank.
Step 1
Connect the B1, B2, B3 and/or B4 to the CANNS500.

B2
B3
B4

B1 should always be connected to the highest available voltage of the battery bank. If four 12 V batteries are installed in series to make a 48 V bank, then B1 is connected to the 48 V connection. B2 to 36 V, and so on.
If two 24V batteries are installed in series to make a 48 V bank, then B1 is 48 V, B2 is 24 V. If there is one battery bank casing (box) of 48 V without individual battery blocks, then B1 is connected to 48 V.
In case of a lithium battery bank, connect the highest voltage to B1 only. Do not use B2, B3, B4.
For batteries connected in parallel, V1=V2. In this case, only connect the plus of the battery bank to B+.
Step 2

• Connect the B1, B2, B3, B4 to the correct batteries.

Step 3

• Connect the shunt to the negative cable, in between the battery bank and the system (the load: electric motor(s), consumer(s), battery charger(s), etc).
  With the exception of the switch, make sure there is no equipment between the CANNS500 minus and the minus of the battery bank.

Step 4

• Connect the “BATT” terminal of CANNS500 to the minus terminal of the battery bank.

Step 5

• Place the individual fuses to connect B1 (plus B2, B3, B4 if applicable).
• Operate the switch to connect the general minus to the system.

Power supply
The CANNS500 is powered via the Batt- shunt terminal and the B1+ terminal (spade connector, e.g. FASTON).
External temperature sensor inputs (T1-T4) The external temperature sensor is used to accurately calculate changes in battery capacity caused by temperature changes.
Two temperature sensors and cables (1 x 2 m and 1 x 5 m) are supplied as standard.
Supplement the sensor set with separately available sensor cables of the correct length.

• Connect the sensor plug to the two-pin connector labeled T1, T2 , T3 or T4.
• Stick or place the other end of the sensor cable on the individual battery. Ensure that the sensor cap is placed away from the electric terminals.

3 .5 NMEA2000
NMEA2000 product data

Product Name|

: Digital Battery Monitoring Shunt

---|---
Description| : Device which monitors battery bank
Manufacturer Code| : 1053
Product Code| : 21697
Certification Type| : Level A
Provides Network Power| : NO
NMEA 2000 Version| : 1.200
NMEA 2000 Certification Tool Version| : 2.10
Load Equivalency Number| : 1
Active PGN #| : 127506, 127508, 127513

NMEA2000 cable cover

The NMEA cable opening on the transparent cover must be cleared.
To do this, carefully break off the four parts by tapping them with a screwdriver.
NMEA2000 compatible M12 connector
The M12 5-pin connector is compatible with NMEA2000 and has a standard pinout.
Note
Always follow the recommendations of NMEA2000 network wiring but make sure to first connect B1 and the CANNS500 . Always use a free T-connector in the MEA2000 network to connect the CANNS500 to via a NMEA2000 cable. Make sure that all connectors are properly tightened to seal the metal contacts inside and to prevent oxidation.
3 .6 Meaning LED indicator lights
Per factory default the CANNS500 will start up the first time with WiFi broadcasting (status LED blinking 10Hz) and battery LED blinking.
Wi-Fi broadcasting can be switched on and off by long press and hold the button.
When Wi-Fi is switched off and the NMEA2000 line is not connected or inactive, all LEDs will be off to save energy. By long press and holding the button the Wi-Fi is switched on and the LEDs will also light up.
Status LED

Battery LED

Calculation  state of charge (SoC)
Solid red LED| State of charge <30 %
Solid yellow LED| State of charge <50 %
Solid green LED| State of charge >50 %

Configuring the CANNS500

In order to function properly, the CANNS500 must be configured before use. Configuration can be conducted via a Wi-Fi connection.
There are several parameters that must either be selected from the available options or programmed by the installer.
Note
Selecting the correct parameters is critical for making the correct calculations and displaying alerts .
4 .1 Configuration via Wi-Fi
CANNS500 has an integrated Wi-Fi hot spot to which you can connect using a smart phone or any other device that allows web browsing.
Per factory default the Wi-Fi is on and broadcasting, if the CANNS500 is (connected to) powered by a battery bank. Check the status LED.
To switch on or off the Wi-Fi connection long press the button and check the LED. It can also be automatically connected by scanning the QR code located on the transparent cover.
You may get a message from the system, that there is no available internet connection. As a solution simply run your web browser and type in config.vetus.com.
Note
Scan the QR code to connect to the CANNS500 and open config.vetus.com in your web browser .
Configuration webpage that will show up consist of three pages easily selectable on top of the screen: Home, Setup and Info page. Setup parameters are only to be changed by a specialist installer.
4 .2 Parameters Battery parameter

Lead Acid – AGM, Li-Ion (LiPO4), Ni-CAD, Zn-O, Ni-Mh
Nominal voltage (total)| 12 V, 24 V, 32 V, 36 V, 42 V, 48 V
Capacity (battery bank)| Should be set by the user according to battery capacity, in Ah
Rated hours| C-value in hours of the given capacity. Typical is C20, which stands for 20 hours.
Temperature| Nominal temperature for which values are stated. Typical this will be room temperature of 20 °C.

WarninG
Press SAVE to store the settings!
Shunt parameters (specialist installer only)

Valid values 1.0 —1.5 Initial value is set automatically based on battery chemistry. Value is constantly modified during battery lifetime.
Charging efficiency| Charger efficiency. Valid values 0.6 —1.0 Value is constantly modified during battery lifetime.
Temperature coefficient| Dependency between battery capacity and environment temperature. Valid values 0.0 —1.0.
Voltage at battery full (V)| Charger float voltage. Initial value is set automatically based on battery chemistry and nominal voltage.
Current at battery full (A)| Charger float current. Initial value is set automatically based on battery chemistry and rated capacity.
Voltage at battery empty (V)| Battery empty voltage. Initial value is set automatically based on battery chemistry and nominal voltage.
Display SoC (state of charge) as:
– Actual (1)
– Chemical (2)|

Alert parameters
Parameter values in this menu can be freely selected by the user.
When measurements are outside limited values, warning message will be sent to NMEA2000 network and shown on screen of the VETUS device. List of available alerts:

selected value
High voltage| Alert will show up when voltage on battery will be above selected value
High charge current| Set the maximum charging current
High discharge current| Set upper limit of current that can be drawn by devices
Low temperature| Set low temperature limit for alert
High temperature| Set high temperature limit for alert
Low state of charge| Set when to alert battery remaining capacity
High state of charge| Set % limit of overcharging
Low remaining time| Set threshold time to alert for low remaining time with current usage and battery capacity.

4 .3 First time use
When the CANNS500 is first put into operation, it takes 10 to 15 minutes after saving the battery configuration for the estimated SoC % value to be displayed. For initial calculation the battery bank must be in rest; relaxed state.
Meaning there should not be any charging or discharging for that period.
When the battery bank state of charge is defined the remaining time will be calculated based on current draw. When the current draw is over 5 amps the calculated remaining time will be more accurate.
4 .4 Monitoring of the battery bank
When a battery bank with sub-blocks is connected: B1, B2, (B3, B4) and the measured voltages of the batteries differs more than 1 V, call an installer to check the batteries.
Voltages of battery blocks connected in series forming a big battery bank should be equal.
WarninG
The CANNS500 does not disconnect or switch off batteries!
WarninG
Do not drain the batteries completely . Stop using the system if the low SoC alarm sounds!
Recharge the batteries in time .
WarninG
If the system is not used for a longer period of time, disconnect the battery bank(s) or make sure the system is charged regularly or connected to a trickle charger
4 .5 New battery bank
If the CANNS500 is to be connected to a new battery bank after first usage, it is possible to perform a factory reset via the Wi-Fi hotspot and config.vetus.com.

Installation manual CANNS500 Digital battery monitoring shunt

Wiring diagrams

Principal dimensions

Fokkerstraat 571 – 3125 BD Schiedam – Holland
Tel.: +31 (0)88 4884700 – sales@vetus.nl – www.vetus.com
Printed in the Netherlands
370601.11 2022-04

Documents / Resources

| vetus CANNS500 Digital Battery Monitoring Shunt [pdf] Instruction Manual
CANNS500, Digital Battery Monitoring Shunt, Monitoring Shunt, Digital Battery Shunt, Shunt, Battery Shunt
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| vetus CANNS500 Digital Battery Monitoring Shunt [pdf] Instruction Manual
CANNS500 Digital Battery Monitoring Shunt, CANNS500, Digital Battery Monitoring Shunt, Battery Monitoring Shunt, Monitoring Shunt

References

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