WB-MR3xV and WB-MR6xV Modbus Relay Modules english: различия между версиями
Kilpio (обсуждение | вклад) |
Kilpio (обсуждение | вклад) |
||
Строка 293: | Строка 293: | ||
== Modbus control== | == Modbus control== | ||
See the [[Relay Module Modbus Management|Управление модулями реле Wirenboard по протоколу Modbus]] | See the [[Relay Module Modbus Management|Управление модулями реле Wirenboard по протоколу Modbus]] page on Modbus control of the relay modules. | ||
The you can also find the register map of the devices. | The you can also find the register map of the devices. | ||
<!--[[RS-485 perifpheral devices of the WB-xxxx series|Back to the list of the peripheral devices]]--> | <!--[[RS-485 perifpheral devices of the WB-xxxx series|Back to the list of the peripheral devices]]--> |
Версия 18:27, 2 марта 2018
Three and six channes relay modules of the WB-MR3xV and WB-MR6xV series can be used in industrial and home automation systems. Different modofications of the relay modules are purposed for switchig general purpose devices, including, в т.ч. inductive and capacitive load: the modules can be гув to switch LED lightning fixtures, incandecent lamps, pulse power supply units and so on.
The maximum switching current for all the modules is 16A (the rated switching current is 10A). No additional power cpouple relays are needed. All the modules have special input which turns of all the relays at once.
Models
The WB-MR3xV modification provides three switching channels while the WB-MR6xV provides six switching channels. The modulse can have dry contact or 230V AC inputs. Different relay types are used in modules for switching different types of load.
Naming scheme:
6]xV | N | XX | / | YY | |||
---|---|---|---|---|---|---|---|
Channels | 'Input type | Relay output type | |||||
3 or 6 | LV | dry contact inputs (Low Voltage) | I | (SPDT, single-pole double-throw, NO/NC contacts), large inrush current (I) | |||
HV | 230V AC inputs (High Voltage) | S | SPST (single pole/single throw, NO contact), extra large inrush current, with tungsten-enforced contacts (S -- Special model) | ||||
R | (SPDT, single-pole double-throw, NO/NC contacts), modules for resistive load (R) (could be purchased only on a by-order basis) |
Outputs
Several realy types are used in modules of different modifications. The following table contains the description of relay models, their specifications and usage cases. Maximum permissible DC voltage for all the modules is 30 V. Each relay contact is protected from arching while circute switching by variable resistors connected to the common "С" contact. The state of the module relays may be restored after power outage if set so in appropriate Modbus-register (see the #Power outage behaviour chapter).
Relay specifications
I model | S model | R model | |
---|---|---|---|
Peak switching current,
resistive load 230V AC |
16А | ||
Peak switching current,
resistive load 30V DC |
- | - | 16A |
Maximum switching power
for incandecent bulbs (230V AC) |
3000W | ||
Peak inrush current
(during 20ms, for the NO contact) |
120A | 165A | - |
Peak inrush current
(during 200 us, for the NO contact) |
- | 800A | - |
Contact resistance | 100 mOhm | ||
Contact material | AgSnO2 | W+AgSnO2 | AgSnO2 |
Contact configuration | SPDT (NO, COM, NC) | SPST (NO, COM) | SPDT (NO, COM, NC) |
Life cyle: number of switching events
for the 16A 230V AC, cos φ = 1 load |
75 000 | 12 000 | 30 000 |
Life cyle: number of switching events
without load |
10 000 000 | 5 000 000 | 20 000 000 |
Realay model | Hongfa HF115F-I | Hongfa HF115F-S | Omron G2RL-1-E |
Special features | Large inrush current,
switched contact set |
Extra large inrush current | Low prrice |
Usage cases | General purpose devices, inductive and capacitive load. Electric motors, coupling relays, incandecent bulbs,
LED light fixtures, pulse power suppplies and so on. |
Resistive load, coupling relays,
inductive and capacitive load of low power. |
Inputs
Inputs of the WB-MR3xV and WB-MR6xV modules are connected to the screw terminals. The purpose of input types varies based on the module type. The LV-modification has dry contact inputs. Buttons or switches shoul be connected to the GND and the appropriate input. The HV-modification inputs sense the 230V AC voltage. The pickup voltage for these inputs is between 90 — 250 VAC. External buttons and switches are connected to the phase (L) wire and the appropriate input. The neutral wire (N) of the 230 VAC mains should be connected to the "N" terminal of the module.
Specification
Parameter | Value |
---|---|
Power supply | |
Power supply | 9 — 24 VDC |
Watt consumption |
|
'Outputs | |
Output type | Electromagnetic relay contacts |
Output configuration | 3 ок 6 outputs connected to the relay contacts |
Contact configuration for each output | Two-stage normaly opened for S model (С and NO)
Two-stage normaly opened with switching for I and R models (NC C NO) |
Maximum switching voltage, AC | 250 V |
Maximum switching voltage, DC | 30 V |
Maximum switching current, per channel |
see the table in the #Параметры реле chapter |
Contact resistance | less than 100 mOhm |
Insulating voltage betwee the module and the output | 1500 V (RMS) |
Life cycle: | see table in the #Параметры реле chapter |
Inputs | |
Number of inputs (Inputs 1—4) | 4 (3+1) in WB-MR3xV
7 (6+1) in WB-MR6xV |
Input type (WB-MR3LV and WB-MR6LV) | Dry contact, group insulation.
Input voltage ~4,5V. Vinput short current ~2 ma. |
Input type (WB-MR3HV and WB-MR6HV) | Mains presence, group insulation.
Inputs pickup voltage: 90В — 250VAC/DC. Current ~0,5 ma. |
Usage |
|
Control | |
Control interface | RS-485 |
Interface insulation | Non insulated |
Communication protocol | Modbus RTU with programmaticaly set address, factory settings are printed on the sticker |
RS-485 interface parameters | set programmaticaly (see the Карту регистров) chapter; default settings: data rate — 9600 bps; data — 8 bit; parity bit — none (N); stop bits — 2 |
Operational readiness after power-up | ~0,03 sec |
External dimentions | |
Width (DIN-units) | 3 |
Geometry (Length x Width х Height) | WB-MR3xV: 53.3 x 90.2 x 57.5 mm
WB-MR6xV: 106.25 x 90.2 x 57.5 mm |
Indicators | |
Power and communication | Yellow Status LED |
Relay channel state | Green LEDs, WB-MR3xV: 1 — 3, WB-MR6xV: 1 — 6 |
Environmental conditions | |
Ambient temperature | From -40 to +50 °С |
Relative humidity | Up to 92%, non-condensing |
Modules external dimentions
WB-MR3xV and WB-MR6xV modules installation
The relay modules should be installed on the standard 35-mm DIN-rail. Module width is 3 or 6 DIN-units.
WAGO screwless terminals are used to connect power and control (RS-485) lines, as well as input contacts. When using insulated wire ferrules to connect wires to the screwless terminals please keep in mind that the diameter of the insulation cap should not exceed 3.6mm , the wire cross-section should not exceed 0.75 mm 2, and the length of the conductive part of the ferrule should not be longe than 5—6 mm. Wires with cross-section 2.5—4 mm2 can be connected to the screw terminals of the module The wire cross-section should correspond to the connected switching load.
Do not exceed the rate current of 16 А on Kx relay contacts
You can choose any appropriate type button or switch to connect to the inputs, as far as the short current is not large. Despite the debouncing circute of the module plese choose high grade buttons or switches to eliminate false response. WARNING! High voltage may be present at terminals of the HV modules!
You shoud connect terminating resistor of about 120 Ohms to the A and B terminals of the last device on the RS-485 line. The terminating resistor is not required on short lines and low bps speeds.
The module should be installed in such a way to Модуль необходимо устанавливать таким образом, чтобы satisfy the ESR and prevent touching terminals where the high voltage may present. The relay modules shoud operate under recommeded environmental conditions.
Power outage behaviour
The 0x06 Modbus holding register changes the relay state maintanence after power outages: value of 0 means that all the relays stay in the off statet after the power appeares, 1 means that all the relays previousely switche on will be switched on again). This works in modules with firmware 1.5.3 or later.
Modbus control
See the Управление модулями реле Wirenboard по протоколу Modbus page on Modbus control of the relay modules. The you can also find the register map of the devices.