Ziehl EFR4001IP with integrated web server energy flow relay

EFR4001IP, energy flow relay Pav,e monitoring, EnFluRi, measuring transducer

Certified Pav,e monitoring according to VDE-AR-N 4105:2018-11, optimization of self-consumption of self-generated energy. Energy flow direction sensor

Product description

Energy flow relays EFR4001IP monitor the flow of electricity between the consumer and the public power grid (at the grid connection point).
Operation is convenient with the built-in web server via the IP interface or via the LCD plain text display directly on the device. Measured values are clearly shown in the display or on the screen.
Many areas suitable for photovoltaics could not be used until now because only a limited amount of power can be fed into the grid connection point. With the validation by VDE-AR-N 4105:2018-11, two thirds or more additional generation capacity can now be installed than the grid connection allows when monitored by the EFR4001IP. The prerequisite for this is that the installed capacity is consumed by the system itself and not fed into the grid. This must be monitored to ensure the stability of the system. The same applies to zero feed-in, when no energy at all is allowed to be fed into the grid.
ATTENTION: Even if nothing is to be fed in (zero feed-in), the agreed active connection power Pav,e must currently be at least 60% of the installed active connection power Pinst of all generation systems operated in the customer system, including storage, when connected in accordance with VDE-AR-N 4105. The EFR4001IP has been optimized for these functions.

Functions Pav,e monitoring and energy flow direction sensor:

Switching off the in-house generation system or parts of it if the permissible feed-in power is exceeded with relay K3
Switching on consumers or reducing generators before it gets that far with analog output and relays K1 and K2
Energy flow direction sensor (EnFluRi sensor) and feed-in limitation (Pav,e) <, 0.1s
Pave / P ave / P av,e

Setting options and functions:

Switching on up to 3 consumers: largest consumer, sequence 1-2-3 or combination of 3 consumers (7-stage)
Switch-on and switch-off points. At which energy flow are consumers switched on and when are they switched off again
Switch-on and switch-off delays as well as minimum switch-on times for consumers
Control of heat pumps SG-ready.

Features

Measurement of active power 1- or 3-phase up to 1,000 kW
Measurement of active power 1- or 3-phase up to 1,000 kW (above this with a factor)
Energy meter for consumption and feed-in
Operation on the device with a color LCD display and joystick
3 inputs for commercially available current transformers with sec. 1A or 5A
3 output relays
4 digital inputs Y1-Y4 for control functions e.g. relay on or off
Analogue outputs for continuous control of a consumer.
Measuring inputs isolated from electronics
IP connection, integrated web server
Network connection Ethernet TCP/IP, query of values via Modbus TCP
Universal control voltage AC/DC 24-240 V
Distribution installation housing, 140 mm wide (8 HP)

Suitable current transformers:

Commercially available current transformers up to 1,000 A, secondary 1 A or 5 A (for Pav,e min. Class 1), e.g. ZIEHL type AS or WS
Mini plug-in current transformer CTM7, 64/1 A, class 1, 0.5 VA
Divisible cable-type transformer (foldable) KBR18S, 60/1 A, class 3, 0.4 VA (Caution! Not for function Pav,e)

Accessories: mounting frame ER8 for panel mounting

Technical data

Control voltage Us (A1, A2) DC/AC 24 – 270 V 0/40...70 Hz, <,3 W, <,9 VA
Tolerance DC 20.4 - 297 V AC 20 - 297 V
Relay outputs K1, K2, K3 3 x 1 changeover contact
Switching voltage max. AC 300 V, DC 300 V
Conventional thermal current Ith max. 9 A
Switching capacity max AC cos =1 2000 VA
Electrical contact life, cos =1 105 switching cycles at 300 V / 9 A
Switching capacity utilization category AC-15 Ie = 6 A Ue = 250 V
Voltage measurement (RMS) L1 / L2 / L3 against N
Measuring voltage phase-N AC 0.1 … 330.0 V, 50 Hz
Resolution 0.1 V
Maximum measurement deviation ± 0.5% of the measuring range end value, ±1 digit
Current measurement (RMS) via current transformer (scalable up to 1,000 A)
Nominal current / resolution AC 1/5 A / 1 mA
Maximum measurement deviation ± 0.5% of the measuring range end value, ±1 digit
Overload capacity 8 A continuous, 12 A max. 1 s
Input resistance 60 m
Measurement of active power ± 1,000 kW, resolution 1 W
Maximum measurement deviation ± 1 % of the final value of the measuring range ±1 digit
Analogue outputs (GND ( ), I+, U+) DC 0/4/1-10...20 mA, DC 0/2/0-5...10 V
Maximum deviation ± 0.3 % of the final value + measurement deviation of active power
Temperature drift <, 0.015 % / K
Load 500
Test conditions see General technical information
Permissible ambient temperature -20 °C ... +55 °C

Housing
Design / mounting frame V8 / mounting frame ER8, 8 TE
Dimensions (W x H x D) 140 x 90 x 58 mm, installation depth 55 mm
Protection class housing / terminals IP 30 / IP20
Fastening standard rail 35 mm or screw fastening M4
Weight approx. 300 g