WITT Solutions GmbH

SMARTE Messtechnik für Gleichstrom – Spannung – Kabel – Isolation

WB-ADC
WB-ADC - Image 2
WB-ADC - Image 3

WB-ADC

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Determines direct currents and their flow directions.

  • Dielectric strength continuously 3000 VDC
  • high security standard
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Description

The functional module “WB-ADC” is used wherever electrical flows are measured and their currents are monitored. In addition, based on the collected data, the control decisions can be passed on to third-party systems.

Function

The following measuring functions can be carried out, evaluated and displayed via digital outputs or (if available) transmitted via a protocol:

  • Detects overcurrents and undercurrents
  • Determines flow directions
  • Energy measurement
  • Storage of the maximum current value that the system has measured since the last reset or start-up

Depending on the expected current strength, the currents can be determined in different ways:

1.) Directly on the device

DC currents up to 20 A can be determined by connecting directly to the system

2.) Shunt resistance

  • Integration of a shunt resistor that is connected in series in the circuit
  • By external sensors up to 6kA
  • Calibration sensor measurement unit
  • plus auxiliary voltage +-15V/6W and a 4-20mA input

3.) Hall sensor measurement

  • Integration of a Hall sensor measurement through which include the live wire.
  • This eliminates the intervention in the infrastructure
  • By external sensors up to 6kA
  • Calibration sensor measurement unit
  • plus auxiliary voltage +-15V/6W and a 4-20mA input

General data

Supply voltage

24VDC /400mA

Power consumption

5-15W

humidity

0 …100%, non-condensing

Outside temperature range

-20 … 50 °C

housing / design

T2 (1 TE = 18 mm) (W x H x D) 36mm x 99mm x 105mm
If option WB-MC T3 (W x H x D) 68mm x 99mm x 105mm
If option measurement display T4 (W x H x D) 90mm x 99mm x 105mm

Modular housing

Protection class IP 20

Mounted on 35 mm DIN rail according to EN 60715

Mains connection and inputs and outputs:

– screw terminals,
– Stripping length 9…10 mm
Note: For connecting potential-free contacts to
the actuator inputs are twisted pair wires
wires to use.
The following conductor cross-sections are permitted:
– solid 0.5 … 2.5 mm2
– finely stranded, with pin cable lug, gas-tight crimped 0.5… 2.5 mm²
– Finely stranded, with ferrule 0.5 … 1.5 mm2
– Finely stranded, untreated 1.0 and 1.5 mm²

weight

approx. 400g

Technical Data

Analogue input channels (measuring channels)

The nominal voltages are based on the typical power supply of DC railways.

Input areas shunt measurement

0-60mV

0-1000mV

Hall sensor input areas

4-20mA

0-100mA

0-200mA

0-20mA

Measurement accuracy

see measurement channel variants

There are two variants of measurement channels

Product type

withe line

silver line

Measurement channels

2

Sampling Rate

up to 15kHz

up to 25kHz

Resolution

up to 8 bits

up to 16 bit

Measurement accuracy

5% of max. value

0.5% of max. value

Output channels digital

number

2

Technology

relay with 2 separate changers (NC/ NO)

switching voltage

max. 250V

switching current

max. 8A

switching capacity

max. 2000WAC / 60W

Dielectric strength coil – contact

max. 4kVAC

Switching cycles at Imax

> 1,000,000

electrical strength contact-contact

max. 2000VAC

Show

Possible variants depending on the range of functions or options

LED1

green

run

operability permanently ON

LED2

blue

Enable

Approval granted by higher authority

LED3

green

ON/ OFF

Sonicated On / OFF

LED4

red

Error

Functional malfunction of the system or sensors or equipment

Operation

no ​​controls are provided in the standard system

Extensions

Functional extension

Max. current threshold

Display threshold exceeded

Min. current threshold

Displayed below threshold

times event pending

Time(s) for how long a threshold must be present in order to be displayed

Operation

The following functions can be offered as an option. These may also require WBex components

Test button

This optional button can be used to manually activate messages or applications 1)

Reset measured value

Using this option, maximum or minimum measurement values ​​can be saved

Release contact

The release signal is required if the WB component works autonomously and is to be activated or deactivated by a simple signal

LCD display

Current current flow
Actual value
Max value (since last reset)
Current direction

Parameterization

For security reasons and by popular demand, an on-site configuration option was omitted.

The threshold values ​​can be set at the factory.

If you need several different threshold values ​​in your systems, you can do this using one of our service cases Perform CM1010 / VLD1010. Different parameter sets and software updates can be stored on the service case and imported using an adapter.

It is also possible to transfer the parameters via a SCADA system (the system must be configured using connected to a WB-MC or WB-HS.

Input Signals

The functionality of the base components can be extended by an internal extension OR by another WB component or WBex extension.

Product

Application examples

WB extensions 4 digital inputs

Release contact 24VDC,
Reset button

Output signals

The functionality of the basic components can be extended by an internal extension OR by another WB component.

Product

Application examples

WB extensions 2 digital power outputs

Switching an actuator or signaling contacts, e.g. 220VAC

WB extensions 4 digital outputs

SMART OK / NOK Status

WB component 2 digital power outputs

Simple on-site extension of the component

Scope of delivery

The following items are included in the scope of delivery:

  • Instruction manual
  • Installation instructions
  • Unit of measurement
  • Packaging
  • Test report

Protocols and SCADA

Product

Application examples

WB – Multi-Communication

WB component by means of which the WB component can be connected to e.g. SCADA

WB – Headstation

Any complex tasks can be implemented using these components. e.g. measurement data evaluation, graphic displays

Documents

Datenblätter

Derzeit keine Dokumente vorhanden

Datasheet

Currently no documents available

Fiches techniques
Aucun document disponible pour le moment

Digital Values

The following digital values ​​can be passed on from the components to third-party systems or queried by third parties.
Possibilities are also listed depending on the components, configuration, installed options and system design as well as the protocol used.

values- output

  1. Product type including extension
  2. Serial number including the extension
  3. Article number
  4. Soft and hardware versions
  5. IST VDC current at time of request per channel
  6. Date + max peak VDC current since last reset
  7. Date + last binary signaling e.g. threshold exceeded
  8. Number of switching operations per output channel since commissioning

values ​​input

  1. Threshold values ​​/ target values ​​for switching digital outputs
  2. Threshold values ​​/ target values ​​for escalation via protocol
  3. Software update
  4. Additional parameters for configuring stored individual programs

operational status

  1. Error with error code
  2. Run
  3. Standby
  4. Automatic

Command

  1. Perform self-test
  2. Reset System
  3. Reset switch counter
  4. Reset measurement tips
  5. Switch to standby mode
  6. Switch to automatic mode

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