Eltako WSZ14DRSE-32A Single Phase Energy Meter Owner’s Manual

: August 14, 2024
: Eltako

Table of Contents

Eltako WSZ14DRSE-32A Single Phase Energy Meter
Specifications
Product Usage Instructions
FAQ
Change PcH value:
Typical connection
Technical data
Menu guidance WSZ14DRSE
CONTACT
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Eltako WSZ14DRSE-32A Single Phase Energy Meter

Specifications

Rated Voltage : 230 V, 50 Hz, -20%/+15%
Reference Current: 0.25 – 5 (32) A
Internal Consumption Active Power : 0.4 W
Display: LC displays 7 digits, with 1 or 2 digits after the decimal point
Inrush Current: 20 mA
Ambient Temperature Limits
Interface: Series 14 RS485-Bus
Protection Degree: IP50 for mounting in distribution cabinets with protection class IP51
Maximum Conductor Cross Section: L terminals 16 mm2, N terminals 6 mm2
Recommended Torque: L terminals 1,5 Nm (max. 2,0 Nm), N terminals 0,8 Nm (max. 1,2 Nm)
For indoor use only
Mechanical Environmental Conditions: Class M1
Electromagnetic Environmental Conditions: Class E2

Product Usage Instructions

Installation

Only skilled electricians should install the WSZ14DRSE-32A energy meter to avoid the risk of fire or electric shock. Follow the installation guidelines provided in the manual

Operating Modes

The WSZ14DRSE-32A meter has special operating modes focused on adjustable transmission speeds of electricity meter data for external building energy managers. These modes can be accessed and forwarded via gateways connected to the FAM14 (FGW14, FGW14USB, FGW14W(L)-IP).

Menu Navigation

The menu guidance for the WSZ14DRSE-32A includes options such as background lighting control, learning telegrams, displaying energy consumption data (kWh), current power (P), voltage (U), current (I), and power change values.

Maintenance

Regularly check the connections and ensure that the recommended torque values for terminals are not exceeded to prevent damage to the energy meter.

FAQ

Q: Can the WSZ14DRSE-32A energy meter be used outdoors?
A : No, the energy meter is designed for indoor use only.
Q: How can I access manuals and documents in other languages?
A: You can find manuals and documents in further languages at https://eltako.com/redirect/WSZ14DRSE-32A
Q : What should I do if I encounter difficulties during installation?
A: Contact ELTAKO GmbH Technical Support at +49 711 94350025 or technical-support@eltako.de for assistance.

Only skilled electricians may install this electrical equipment otherwise there is the risk of fire or electric shock!

Temperature at mounting location: -25°C up to +70°C.
Storage temperature: -25°C up to +70°C.
Relative humidity: annual average value <75%.

RS485 bus single phase energy meter WSZ14DRSE-32A with the display.

Maximum current 32 A. Standby loss 0.4 watt only.
Modular device for DIN-EN 60715 TH35 rail mounting.
1 module = 18 mm wide and 58 mm deep.
Connection to the Eltako RS485 bus. Bus wiring and power supply with jumpers.
The meter reading, the instantaneous power, and the serial number are transferred to the bus – e.g. B for transfer to an external computer, to a controller – and also sent to the radio network via the FAM14. For this, it is necessary that a device address is
assigned by the radio antenna module FAM14.
This single-phase energy meter measures active energy by means of the current between input and output. The internal power consumption of 0.4-watt active power is neither metered nor indicated.
Like all meters without a MID declaration of conformity, they are not approved for monetary electricity billing in Europe.
1 phase conductor with a max. current up to 32 A can be connected.
The start current is 2O mA. Accuracy class B (1%).
If the anticipated load exceeds 50%, maintain an air gap of ½ pitch unit to the devices mounted adjacently. If necessary, use spacer DS12.
Two N terminals for secure cross-wiring of several counters.
The meter value is saved non-volatile and is displayed again immediately after a power failure.

The 7-segment LC display is also legible twice within 2 weeks without a power supply. Press the button.

Power consumption is shown by a bar flashing at a rate of 1000 times per kWh. Error message
In case of a connection error, the background lighting of the display flashes.
When the display is running, it shows the total active energy and the display bars are in the kWh position.
The backlight can be switched on using the button below the display and then scrolled through the menu.
The bar moves to the respective display: the accumulated power of the resettable memory RS (kWh), the instantaneous power P (kW), the instantaneous voltage U (V), the instantaneous current I (A), and the PcH value are displayed one after the other. Finally, you scroll back to the display of the total active energy (kWh). 20 seconds after the button was last pressed, the program automatically returns to the
normal display (kWh), and the background lighting is switched off. The memory RS is reset by pressing the button for longer than 3 seconds while it is displayed and confirming the message ‚reset‘ by pressing it again for 3 seconds. Assign device address for the WSZ14:
Normal display: Short-tap the button, and the backlight will turn on. If the button is pressed for more than 3 seconds, the device address Adr appears on the display. Now turn the rotary switch on the FAM14 to position 1 within 60 seconds; its lower LED lights up red. After the address has been assigned by the FAM14, its lower LED lights up green for 5 seconds and the normal display appears again on the WSZ14. Delete the device address of the WSZ14:
Normal display: Short-tap the button, and the backlight will turn on. If the button is pressed for more than 3 seconds, the device address Adr appears on the display. Now hold the button down again for 3 seconds, and LEArn appears in the display. Then press the button briefly, rESEt.A appears in the display. Now keep the button pressed for 3 seconds, the device address is set to zero and the normal display appears.

Send learning telegram

Normal display: Short-tap the button, the backlight will turn on. If the button is pressed for more than 3 seconds, the device address Adr appears on the display.
Keep the button pressed for 3 seconds again, LEArn appears in the display. Now press the
button again for 3 seconds, a teach-in telegram and a data telegram are sent.
The FAM14 must be operated in position 2 or position 5 so that the telegrams of the WSZ14 can be sent to the Eltako wireless network. A data telegram with meter reading, power, and serial number is sent auto-matically after switching on the supply voltage and cyclically every 10 minutes. If the meter reading changes by 0.1 kWh, the meter reading telegram is sent. PcH (Power change) is the value (delivery condition 200 watts) of the necessary power change so that a power telegram is sent immediately.

Change PcH value:

Short press the button, the backlight will turn on. Then press the button repeatedly until PcH appears in the display. Now press and hold the button for at least 3 seconds until the first digit of the number flashes. The number then increases with each press of the button. Between 10 to 100 in increments of 10 and from 100 to 1000 in increments of 100. If the selected value is to be saved, press and hold the button again for 3 seconds. SEt appears in the display. Now you can switch between SEt and ESc with a short button press. By pressing the button for at least 3 seconds, the value is saved with SEt, with ESc the value is discarded. After briefly pressing the button, the normal display appears.
To save the selected PcH value or cancel the selection process, the button must be pressed for > 3 seconds.

Save selected value: Confirm the value in the set display by pressing a button for >3 seconds; a new PcH value has been selected.
Cancel the selection process: Briefly press the button in the SEt display so that ESc appears in the display. The process can then be canceled by pressing a button for >3 seconds and the last saved PcH value will continue to be used.
Meter special operating modes:
In the meter operating modes of the FAM14, the focus is on the adjustable transmission speed of electricity meter data for external building energy managers.
Data can be accessed and forwarded via gateways connected to the FAM14 (FGW14, FGW14-USB, FGW14W(L)-IP).
Additional setting options are available on the FAM14 for meters from production week 33/23.

Typical connection

Technical data

Rated voltage, extended range 230 V, 50 Hz, -20%/+15%
Reference current Iref (Limiting current Imax) 0.25 – 5 (32) A
Internal consumption active power 0.4 W
Display LC display 7 digits,
therefrom 1 or 2 digits after the decimal point
Accuracy class ±1% B
Inrush current according to accuracy class B 2O mA
Ambient temperature limits -25/+70°C
Interface Series 14 RS485-Bus
Protection degree lP50 for mounting in distribution cabinets
with protection class IP51
Maximum conductor cross-section 1) L terminals 16 mm2
N terminals 6 mm2
Recommended torque 2)
L terminals 1,5 Nm (max. 2,0 Nm)
N terminals 0,8 Nm (max. 1,2 Nm)
The energy meter is for indoor use.
Mechanical environmental conditions class M1
Electromagnetic environmental conditions class E2

The carrying capacity of cables and wires is defined in DIN VDE 0298-4.
The torques for screw terminals are mentioned in DIN EN 60999-1. To avoid damage at the energy meter, the recommended torque values for each terminal must not be exceeded!

Eltako-WSZ14DRSE-32A-Single-Phase-Energy-Meter-FIG-2