Eltako RS485 Bus Two Way Three Phase Energy Meter Instructions
- June 11, 2024
- Eltako
Table of Contents
Eltako RS485 Bus Two Way Three Phase Energy Meter Instructions
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 +55°C.
Storage temperature: -25°C up to +70°C.
Relative humidity: annual average value <75%.
valid for devices from production week 33/23 (see bottom side of housing)
RS485 bus two-way three-phase energy meter.
Maximum current 3x80A. Standby loss 0,8W at L1 and only 0,5W at L2 and L3
each.
Modulair device for DIN-EN 60715 TH35 rail mounting in distribution cabinets
with IP51 protection class.
4 modules = 70mm wide and 58mm deep. Accuracy class B (1%). With RS485
interface. It measures active energy by means of the current between input and
output. The internal power consumption of 0,8W or 0,5W active power per path
is neither metered nor indicated.
The active energy is added depending on the sign. Positive power in the
meter means energy consumption, negative power means energy delivery. The
energy measurement is balanced. If the energy consumption (P positive) is
greater than the energy supply (P negative), the meter reading T → is
increased. If the energy supply is greater than the energy consumption, the
meter reading T ← is increased. Energy consumption is shown with a right arrow
→ and energy supply is shown with a left arrow ← above the active bar in the
display. The 7 segment LC display is also legible twice within a period of 2
weeks without power supply.
1, 2 or 3 phase conductors with max. currents up to 80A can be connected.
The inrush current is 40mA. The terminals L1 and N must always be connected.
Connection via a FBA14 to the Eltako RS485 bus with a 2-wire shielded bus
cable (telephone cable). For the last meter in the RS485 bus, the enclosed
terminating resistor (120Ω) must be connected to the RSA/RSB terminals. The
meter reading and the momentary power are transferred to the bus – e.g. for
transfer to an external computer or a controller – and is also transferred to
the wireless network via the FAM14. For this it is necessary that a device
address is assigned from the wireless antenna module FAM14, according to the
operating instructions.
Energy consumption and energy supply values are stored in non-volatile memory
and are displayed again immediately after a power failure. The 7 segment LC
display is also legible twice within a period of 2 weeks without power supply.
The power consumption and the power supply are indicated by an LED next to the
display that flashes 1000 times per kWh. On the right next to the display
are the keys MODE and SELECT. Press them to scroll through the menu. First the
background lighting switches on. Then the total active energy per consumption
and delivery, the active energy of the resettable memory consumption and
delivery as well as the instantaneous power, voltage and current values for
each phase conductor can be displayed.
Error message
If a phase connection is missing, the corresponding phase is shown on the
display. A device address for the DSZ14 has to be assigned from the FAM14, to
hand the telegrams of the DSZ14 over to the bus.
Assign device address for the DSZ14:
Normal display: Briefly press the SELECT button, the backlight is switched on.
If the SELECT button is pressed longer than 3 seconds, the device address
appears in the display. Now turn the rotary switch on the FAM14 to position 1
within 60 seconds, its lower LED flashes red. Once the address is assigned by
the FAM14, its lower LED lights green for 5 seconds and the normal display
appears again on the DSZ14.
Delete device address of the DSZ14:
Normal display: Briefly press the SELECT button, the backlight is switched on.
If the SELECT button is pressed longer than 3 seconds, the device address
appears in the display. Now hold the SELECT button for 5 seconds, the device
address is set to zero.
Transmit teach-in telegram:
Normal display: Briefly press the SELECT button, the backlight is switched on.
If the SELECT button is pressed longer than 3 seconds, the device address
appears in the display. By briefly pressing the MODE button, a teach-in
telegram and a data telegram is sent. The FAM14 has to be operated in position
2 or 5, to sent the telegrams of the DSZ14 into the Eltako Wireless Building.
A data telegram containing meter reading, power and serial number is
automatically sent and cyclically transmitted every 10 minutes after switching
on the supply voltage. If you change the meter reading by 0.1 kWh, the meter
reading telegram is sent.
PcH is the value (factory setting 200 watts) of the power change required
for the meter to send a power telegram immediately.
Change PcH value :
Short press the MODE button, the backlight will turn on. Then press the MODE
button repeatedly until PcH appears on the display.
Now briefly press the MODE and SELECT buttons together. The first digit of the
number flashes. MODE increases the number and SELECT decreases the number.
Between 10 to 100 in increments of 10 and from 100 to 1000 in increments of
100. If no more keys are pressed, the current value is saved after 5 seconds.
With MODE you get back to the normal display.
The DSZ14 can be read-out with the PC tool PCT14.
The serial number, meter reading T→total, resettable meter reading T→part.,
meter reading T←part and resettable meter reading T←part. will be displayed.
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:
4-wire-connection 3×230/400V
How it works
Data telegram
DB0 = 0C
Menu guidance
Technical data
| Rated voltage, extended range | 3×230/400V, 50Hz, -2O%/+15% |
|---|---|
| Reference current Iref (Limiting current Imax) | 3×0.5 – 10 (80)A |
| Internal consumption active power | 0,8W at L1 and only 0,5W at L2 and L3 |
| 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 | 4OmA |
| Operating temperature | -25/+55°C |
| Interface | RS485 bus Series 14 |
| Terminal cover sealable | Terminal cover claps |
| Protection degree | lP50 for mounting in distribution cabines with protection |
class IP51
Maximum conductor cross section 1)| L terminals 25mm2 , N terminals 16mm2 ,
RSA/RSB terminals 6mm2
Recommended torque 2)| L terminals 2,0Nm (max. 2,5Nm) N terminals 1,5Nm (max.
2,0Nm) RSA/RSB terminals 0,8Nm (max. 1,2Nm)
EC type examination certificate| 0120/SGS0204
The energy meter is used indoors.
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 damages at the energy meter, the recommended torque values for each terminal must not be exceeded!
EC DECLARATION OF CONFORMITY
Product :R3485 bus two-way three-phase energy meter, MID approval
Type designation : DSZ14DRSZ-3x80A
EC-type examination: 0120/SGS0204
certificate
The manufacturer herewith declares, on his own responsibility that the designated products which this certificate refers to, are in accordance with the following harmonized standards or normative documents as well as with the following Directives of the European Parliament and of the Council (relevant version):
DIN EN 50470 : part 1: 2019-08 and part 3: 2020-03 (electronic meters)
2014/32/EU : measuring instruments
2014/30/EU : electromagnetic compatibility
2011/65/EU: restriction of the use of certain hazardous substances (RoHS
Directive
The designated products are placed on the market by ELTAKO GmbH, Hofener Straße 54, 70736 Fellbach, Germany.
Notified body : SGS Fimko OΟΥ, Νο. 0598 Takomotie 8, FI-00380 Helsinki,
Finland
Manufacturer: Shenzhen Chuangren Technology Co. Ltd. Building 33, No.3
Industrial Area, Mashantou, Gongming Street, New Guangming District, Shenzhen
City, Guangdong Province, 518106, China
Place, Date: Shenzhen, 07 November 2022
Signature
This declaration proves the compliance with the above-mentioned EC Directives
but it does not Include any assurance of properties.
Security advices of the provided product information have to be noticed.
*Manuals and documents in further languages:
[](http://eltako.com/redirect/DSZ14DRSZ-380A_MID)**
http://[eltako.com](http://eltako.com)/redirect/DSZ14DRSZ-3*80A_MID
Must be kept for later use!
We recommend the housing for operating instructions GBA14
Eltako GmbH D-70736 Fellbach
Technical Support English :
+49 711 94350025
technical-support@eltako.de
eltako.com