WM-RELAYBOX WM-RelayBox Innovation in Smart IoT Systems User Guide
- June 15, 2024
- RelayBox
Table of Contents
WM-RELAYBOX WM-RelayBox Innovation in Smart IoT Systems
PARTS OF THE DEVICE
- Terminal cover
- Top cover (uppert part, which protects the PCB)
- Top cover fastetning screw (sealable)
- Base part
- Bottom mounting points
- Power input (the first 2-pins on the terminal block for AC wires, pinout (from left-to-right): L (line), N (neutral))
- Relay connections (4pcs terminal block pairs (4x 2-wire), Single-Pole SPST, COM/NC)
- E-Meter interface input (RS485, RJ12, 6P6C)
- Fixation of the input/output wires – on the terminal block (by screws)
- HAN / P1 interface output (Customer Interface port, RJ12, 6P6C, 2kV isolated)
- Nut for Terminal cover Fastener Screw
- Passage (cutout) – for E-Meter communication cable
- Upper mounting point
- Status LEDs
- Dust cover of HAN / P1 interface
TECHNICAL DATA
Power voltage: ~207-253V AC, 50Hz (230V AC +/-10%, 50Hz)
Consumption: 3W
Overvoltage protection: according to EN 62052-21
Relays: 4pcs independent single-pole SPST relays with COM/NO switching,
to switch max. 250V AC voltage @ 50Hz, up to 5A resistive load RJ12 ports:
- RJ12 input (9) : for smart meter connection
- HAN / P1 output (11): for connecting to the Customer Interface
Operational / storage temperature : between -40’C and +70 ‘C, at 0-95%
rel. humidity
Dimensions: 118 x 185 x 63 mm / Weight: 370 gr.
Casing: IP21-protected plastic enclosure with terminal cover
Fastening/fixation : Mount to wall or a DIN-rail
ATTENTION! DO NOT CONNECT ~230V AC TO THE POWER INPUT (7) OF THE DEVICE UNTIL
YOU HAVE CONNECTED THE CABLES (8)!
DO NOT OPEN THE DEVICE CASING OR TOUCH THE CIRCUIT PANEL UNDER ANY
CIRCUMSTANCES! DO NOT PUSH METAL OBJECTS INTO THE DEVICE! DO NOT TOUCH METAL
OBJECTS WHILE THE DEVICE IS CONNECTED OR POWERED!
INSTALLATION STEPS
-
Make sure that the device is not under power/supply voltage!
-
Remove the Terminal cover (No. 1) by releasing the Fastener Screw (Nr.3).
Use a matching VDE screwdriver for the PZ/S2 type a screw head. -
Slide up the Terminal Cover part (No. 1) carefully from the Base part (No. 5), then remove the cover.
-
Now you can free to connect wires to the terminal block. Release the fastener screws (10) of the terminal block inputs and do the wiring.
Note, that the screw heads are PZ/S1 type, so use a matching VDE screwdriver. After do the wiring, fasten the screws. -
Connect the RJ12 cable of the smart meter (B1) to the E-Meter connector (9).
-
Carry out the wiring according to the wiring diagram on the middle sticker.
-
If you want, connect the Relay #1 wire pair (NO / COM) to the pins nr. 3, 4. The opposite side of the cable should be connected to the external device, which you want to control / switch by the relay.
-
If you want, connect the Relay #2 wire pair (NO / COM) to the pins nr. 5, 6. The opposite side of the cable should be connected to the external device, which you want to control / switch by the relay.
-
If you want, connect the Relay #3 wire pair (NO / COM) to the pins nr. 7, 8. The opposite side of the cable should be connected to the external device, which you want to control / switch by the relay.
-
If you want, connect the Relay #4 wire pair (NO / COM) to the pins nr. 9, 10. The opposite side of the cable should be connected to the external device, which you want to control / switch by the relay.
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Place back the Terminal cover (No. 1) to the Base part (No. 5). Fasten the fixation screw (3) and check that the terminal cover (1) is closing properly.
-
If the Customer wants to use the external RJ12 HAN / P1 interface output (No. 11) then you should remove the Dust cover cap (16) from the HAN RJ12 socket (11) and you can connect the RJ12 cable (B2) to the port.
-
Fasten / mount the product housing by the requirements:
- Mount on a 35mm DIN rail (with DIN-rail fastener on the backside).
- 3-point fastening with the upper fixing hole (14) and with the lower fixing points (6) by screws – to a wall or into the public lighting cabinet.
-
Plug the ~207-253V AC power voltage to the AC power wires of the terminal input (wires nr. 1, 2 – pinout: L (line), N (neutral)) e.g. to an external power source or electricity plug.
INTERFACE DESCRIPTION
OPERATION OF THE DEVICE
The WM-Relay Box has a pre-installed embedded system, which starts immediately
to operate after adding the power source to the device.
The current operation will be signed by the status LEDs (Nr.15), according to
the LED operation behaviour.
The device is listening on its RS485 bus to the incoming messages/commands of
the connected device on RJ12 E-meter port. If it is getting a valid message,
the device will execute the incoming command (e.g. relay switching) and
forward the message to the HAN interface (RJ12 Customer Interface output).
Simultaneously, the required relay will be switched to ON due to the request.
(In case of the switch OFF request, the relay will be switched to OFF).
The LED signals (No. 15) will be always inform about the current activity.
In case of the removal / disconnection of the AC power source, the relay box
will be immediately turning off. After adding the power source again, the
relays will be switching to their base-position, which is state OFF (not
switched).
For further details read the Installation Manual of the product.
SMART METER→ RELAY BOX CONNECTION
The data transfer allows only one-way (unidirectional) communication from the
meter to the WM-RelayBox (RJ12 e-meter connector input) and one-way
communication from the WMRelayBox to the Customer Interface output connector
(isolated, external RJ12).
SMART METER→ RELAY BOX COMMUNICATION
The device is connected to the intelligent consumption meter via a wired line
on the RS-485 bus.
The WM-Relay Box contains four individually switchable relays, which are used
to control the connected devices – primarily consumer devices or any other
device (to switch on/off).
The WM-Relay Box is communicating and controllable with DLMS/COSEM commands,
which are reaching the relay box via one-way unconfirmed communication through
the connected consumption meter.
In addition to the commands intended to control the relay box, data intended
for the output of the consumption meter are also transmitted via the
consumption meter interface.
The WM-Relay Box contains a separate isolated and disconnected connector for
the consumer output connection.
The purpose of the device is to control the customer’s connected equipment.
LED SIGNALS
PWR (POWER): The LED active by red in case of presence of the ~230V AC
voltage. For more details see below.
STA (STATUS) : Status LED, flash briefly once by red at startup. If the
device will receive a valid message/command on RS485 bus within 5 minutes, it
will sign the communication every time by red LED flashing.
R1..R4 (RELAY #1 .. RELAY #4) : The related LED is active (lighting by
red), when the current relay will be switched to ON (the current RELAY LED
will be also turned on – ligthing continously). In case of OFF status
(switched off relay) the LED of the current RELAY LED will be blank.
Further, detailed LED operation sequence can be found and read in the
Installation Manual of the product.
DOCUMENTS & PRODUCT SUPPORT
Product website (documents, etc.): https://m2mserver.com/en/product/wm- relaybox/
In case of product support request, ask our support at the iotsupport@wmsystems.hu email address or check our support website for the further contact opportunities please: https://www.m2mserver.com/en/support/
This product is marked with the CE symbol according to the European
regulations.
The crossed out wheeled bin symbol means that the product at the end of its
life cycle should be disposed of with general household waste within the
European Union. Only discard electrical/electronic items in separate
collection schemes, which cater for the recovery and recycling of materials
contained within. This refers not only to the product, but also to all other
accessories marked with the same symbol.
