Operating Manual EFR3000 - TVR Instruments Limited

ZIEHL industrie – elektronik GmbH + Co KG
Daimlerstr.13, 74523 Schwäbisch Hall, Germany
+ 49 791 504-0, info@ziehl.de, www.ziehl.de
Temperature Relays and MINIKA®
Mains Monitoring
Digital Panelmeters MINIPAN®
Switching Relays and Controls
Measuring Transducers
Operating Manual EFR3000
Grid- and Plant Protection
updated: 2016-09-06/Ba
from firmware: 0-01
Energy flow relay
- Optimization of the internal consumption of self-generated energy
- Energy flow direction relay for battery storage systems (zero export / import device < 0.5s)
- Limitation of the infeed power
- 0/4 - 20 mA output with linear control function or as a scalable instrument transformer
- SG ready optimized
- Configuration also via web interface with transmission through USB memory stick
http://www.public.ziehl.com/efr3000/
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Table of contents
1
Application and brief description .......................................................................................................... 3
2
Summary of the functions ..................................................................................................................... 3
3
Display and controls .............................................................................................................................. 3
4
Detailed description ............................................................................................................................... 4
4.1
Description of the connections ....................................................................................................... 4
4.2
Functional characteristics .............................................................................................................. 5
4.3
Program 1 (the largest of up to 3 consumers is switched on) ......................................................... 6
4.4
Program 2 (up to 3 consumers are switched on in succession) ...................................................... 7
4.5
Program 3 (largest load combination of 7-stages) .......................................................................... 8
4.6
Program 4 (fixed starting sequence K1-K2-K3, SG ready) ............................................................. 9
4.7
Program 5 (zero export / import added together, prevent/ limit infeed) ......................................... 10
4.8
Program 6 (zero export / import device phase-wise, prevent/ limit infeed).................................... 11
4.9
Analogue output function ............................................................................................................. 12
4.10
Function of the digital inputs PR1…4 ........................................................................................... 12
4.11
Function of the digital inputs PR5…6 ........................................................................................... 12
5
Important notes .................................................................................................................................... 13
6
Installation/assembly ........................................................................................................................... 13
7
Connection diagrams ........................................................................................................................... 14
7.1
1x directly, 1x coupling relay 1 phase load, 1x coupling relay 3-phase load and controlled load to
analogue output ...................................................................................................................................... 14
8
9
7.2
SG ready heat pump (operating condition 3 + 4, Pr4 ) and controlled load on analogue output ... 15
7.3
Energy flow direction relay (zero export device) without delivery into the public grid .................... 16
7.4
Energy flow direction relay (zero import device) without delivery from the public grid .................. 16
7.5
1 phase connection to L1 (!) ........................................................................................................ 17
Commissioning..................................................................................................................................... 18
8.1
Information on operating .............................................................................................................. 18
8.2
Switch on the unit / Language selection ....................................................................................... 18
8.3
Program selection ........................................................................................................................ 18
8.4
Description of the parameters ...................................................................................................... 19
8.5
Description of the display pages (measured values) .................................................................... 21
8.5.1
Explanation of the symbols ................................................................................................... 22
8.5.2
Display Examples ................................................................................................................. 22
8.6
Code lock / Code reset ................................................................................................................ 22
8.7
Simulation .................................................................................................................................... 22
Factory setting Pr1…4.......................................................................................................................... 23
10 Factory setting Pr5+6 (zero export / import device) ........................................................................... 24
11 Technical data ...................................................................................................................................... 25
12 Mounting type V8 .................................................................................................................................. 27
13 Troubleshooting and corrective measures......................................................................................... 28
14 Tips and Tricks ..................................................................................................................................... 28
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1 Application and brief description
EFR3000 energy flow relays monitor the current flow between the consumer and the power supply (electric
utility companies/energy suppliers). If an own generating plant generates more power than is currently being
consumed then it is often more cost effective to consume the excess electricity itself. This is always the case
if the feed-in remuneration is significantly below the price paid to the power utility for the purchase of the
electricity; in Germany that generally applies to newly installed or newer plants.
Is there enough intrinsic power left, the EFR3000 switches in up to three consumers and ensures that the
current is consumed in-house. Potential consumers are, for example, air conditioning systems, hot water
production or battery charging devices along with washing machines, dryers, etc...
The EFR3000 is also advantageous where the own production is relatively constant, e.g. water power
smoothing out fluctuations in consumption which prevents infeeds.
2 Summary of the functions
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Measurement of active power 1-phase or 3-phase (up to 1000 kW)
Colour LCD display and intuitive operation with joystick
3 inputs for commercially available current transformers, programmable transmission ratio
3 output relays, switching capacity per 2 kW, higher loads can be connected via contactors
2 digital inputs Y1/Y2 for control functions
RS485 interface (Modbus RTU) and Micro-USB port for configuration and updates
Analogue output for power and energy flow direction 0/4 ... 20 mA (L1, L2, L3, or L123, scalable) or for
continuous regulation of a consumer
Energy flow direction sensor, shut-down < 0.5s in impermissible non-conforming infeed
Universal supply voltage AC/DC 24-240 V
Panel mounted distributor housing 140 mm wide (8 TE)
3 Display and controls
1
Relay K1 actuated (11 – 14),
Green time bar = load change is detected
2
Relays K2 & K3 de-energised (21 – 22; 31 – 32),
Red time bar = delayed on/off operational or load not detected
3
Joystick button (special functions are displayed in the Err space)
4
Current display page / number of display pages / short-cuts for menu item
5
Error present, for display with help text navigate to the right (red arrow)
6
Connection for Micro USB memory stick, for firmware update, backup and exchange of configuration
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4 Detailed description
The EFR measures the flow of energy in all 3 phases. If there is enough intrinsic power left, the EFR3000
switches in up to three consumers and ensures that the current is consumed in-house. Potential consumers
are, for example, air conditioning systems, hot water production or battery charging devices along with
washing machines, dryers, etc... This is relatively easy if a PV system is feeding-in at a regular rate under
clear skies and consumers with constant power consumption such as heat pumps or heating elements are
connected. Consumers are particularly suitable that consume a lot of energy and which can be connected
often, e.g. hot water generation. It is more complicated if the infeed varies due to clouds in front of the sun
and consumers do not continuously consume power such as washing machines, dryers, irons or cookers.
With the analogue output a consumer can be continuously regulated and thus the internal consumption can
be further optimized. When using phase-angle controllers, the requirements of the network operators need to
be observed.
The EFR3000 makes it possible to optimize the internal consumption even under difficult conditions.
To accomplish that, the following parameters can be set:
 Power consumption of the connected consumer
 Operating points, The energy flow at which the consumers are switched on
 Switch-on delay of the consumers, Short reduction of consumption (also through clocked consumers)
or peaks in the infeed do not immediately lead to switching in additional consumers
 Minimum start up time, Heat pumps must not be continuously turned on and off, washing machines
should be able to conclude a washing cycle.
 Turn-off delay, Short consumption peaks or reduction at the infeed do not immediately lead to a
consumer being switched off.
 Reset point, The energy flow at which the consumers are switched off again. In practice, this value
usually lies slightly on the "power delivery" side.
 Hide inputs to consumers if they are not available, e.g. hot water boiler has reached the maximum
temperature.
The power is always evaluated and displayed as seen from power meter:
Delivery from energy supplier is positive, the power fed into the grid reduces the electricity invoice and is
therefore negative (- prefix).
4.1
Description of the connections
Connection
A1, A1‘ and A2
Y0
Y1 and Y2
D0 and D1
Gnd and I+
12,11,14; 22,21,24; 32,31,34
L1, L2, L3 and N
1l1(k), 1l2(l); 2l1(k), 2l2(l);
3l1(k), 3l2(l)
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Description
Supply voltage DC/AC 24 – 240 V 0/50/60 Hz
Supply voltage for digital inputs, approx. 18V DC
Digital inputs, K1...3 external on or off
RS485 interface
Analogue output 0/4...20 mA for adjustable loads or as instrument
transformer
Relays K1, K2 and K3 (max. 9A direct)
Voltage measurement, phase L1, L2, L3 and neutral conductor
Current measurement, phase L1, L2 and L3 (only through current
transformers 1 / 5 A),
k = secondary power plant, l = secondary load
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4.2
Functional characteristics
Negative measured value for
performance
Consideration of connected
loads/consumers
Influence of delay times
Implement minimum run times
( Min on )
Implement minimum switch-off
time
( delay on )
SG ready
Min / Max values
zero export / import device,
relay function
zero export / import device,
monitor function
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+ : Reference
- : Supply (excess)
Depending on the selected program, connected loads / consumers are
taken into account to identify internal connect / disconnect limits
Depending on the program, determines not only the limit of the connection
sequence but also the set delay times
(larger load should have shorter time and therefore has priority)
Minimum run times of, e.g. heat pumps, washing machines, etc. can be
implemented through the minimum startup time ( Times -> Min on Kx );
once a load/consumer is switched on, shut-down is earliest after the set
time
Minimum off time of, for example, heat pumps, etc. can be implemented
through the delay ON time (Times -> delay on ), this time runs out before
the On consumer is switched on, the minimum switch off time of the
consumer can be set, the delay ON time can also be set shorter
In Program 4, the EFR3000 also supports
SG ready devices / heat pumps:
Operating
Signal K2 : K1
Description
status
Switch-on
3
0:1
recommendation for
enhanced operation
Definitive switch-on
4
1:1
command
All the min and max values are stored zero voltage retentive; press the 2s
button  to delete the currently displayed min and max values
In PR5+6 the relay position cannot be adjusted; the closed-circuit current
principle always applies here i.e. the limit value is not exceeded/undercut
= relay actuated (x1-x4)
In PR5+6 the set limit values determine the monitoring function of the
associated relay:
Power Kx off > Power Kx on = MAX monitoring (exceed)
Power Kx off < Power Kx on = MIN monitoring (undercut)
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4.3
Program 1 (the largest of up to 3 consumers is switched on)
Precondition:
 Own generating unit, e.g. photovoltaic, CHP, wind rotor, water turbine,…
 1…3 switchable consumers, same / different power, e.g. heating element, heat pump, rechargeable
batteries, electric car, electric heating, air conditioning, ...
 Max. 1 controllable consumer with linear phase angle or trailing-edge control 0/4 to 20 mA (0-10V),
e.g. heating element
 1 and / or 3-phase consumers
Goal:
 The highest possible internal consumption by switching-in the largest-possible consumer / load
 Taking into account the analogue consumed power it is possible to switch on a relay if the relay is
switched on and the controlled consumer is reduced (relays have priority)
Measurement:
 The EFR3000 monitors the accumulated flow of energy at the grid connection point
(between the public power grid and the consumers / generators
Feature:
 Consumers that are already switched in and the analogue controlled consumers are taken into
account (which is why the typical power consumption of the consumers has to be set)
Connection:
 If the infeed increases / the delivery falls under the limit ON value set for the load / consumer, the set
delay ON time starts,
If the limit value remains undercut for the entire time, the consumer is switched on and the set
minimum on time begins
 If the infeed continues to increase / the delivery continues to fall so that the next largest consumer
could be switched on, after the expiration of the set delay ON time + minimum startup time the smaller
consumer will be switched off and the larger one switched in
 All consumers are switched in the same way
 So that when sufficient power is available the largest possible consumer is switched in first it should
be given the shortest delay ON time (smallest = longest)
Disconnection:
 If the infeed decreases / the delivery increases above the set limit OFF value for the load / consumer,
the set delay OFF time starts,
If the limit value remains undercut for the entire time, the consumer is switched off after the minimum
startup time has expired
 When switching back to the next lower level, the delay ON time does not run down again which
efficiently uses the excess energy
Examples:
 3 heating elements with different power, only one is allowed to be switched on at one time
 Electric heating with 3 heating elements, only one is allowed to be switched on at the same time
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4.4
Program 2 (up to 3 consumers are switched on in succession)
Precondition:
 Own generating unit, e.g. photovoltaic, CHP, wind rotor, water turbine,…
 1…3 switchable consumers, same / different power, e.g. heating element, heat pump, rechargeable
batteries, electric car, electric heating, air conditioning, ...
 Max. 1 controllable consumer with linear phase angle or trailing-edge control 0/4 to 20 mA (0-10V)
 1 and / or 3-phase consumers
Goal:
 Highest possible internal consumption by gradually switching in the consumers / loads, at the same
time the previously switched in consumers / loads also stay switched on
 Taking into account the analogue consumed power it is possible to switch on a relay if the relay is
switched in and the controlled consumer is reduced (relays have priority)
Measurement:
 The EFR3000 monitors the accumulated flow of energy at the grid connection point
(between the public power grid and the consumers / generators)
Feature:
 Analogue regulated consumers are taken into account
 Previously switched on consumers are not taken into account, the actually measured value P L123 is
evaluated
Connection:
 If the infeed increases / the delivery falls under the limit ON value set for the load / consumer, the set
delay ON time starts; if the limit value remains undercut for the entire time, the consumer is switched
on and the set minimum on time begins
 If the infeed increases / the delivery continues to fall so that the next largest consumer could also be
switched on, after the expiration of the set delay ON time it is also switched on
 All consumers are switched on the same way
 The sequence is determined by the set limit values and by the set delay ON times
Disconnection:
 If the infeed decreases / the delivery increases over the limit OFF value set for the load / consumer,
the set delay OFF time starts; if the limit value remains exceeded for the entire time, the consumer is
switched off after the expiration of the minimum startup time
 All consumers are switched off the same way
 So that the smallest consumer is switched off first it should be given the shortest delay OFF time
(largest = longest)
Example:
 Electric heating with 3 heat levels, all 3 can be operated at the same time but the sequence (low,
medium, high) must be correct
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4.5
Program 3 (largest load combination of 7-stages)
Precondition:
 Own generating unit, e.g. photovoltaic, CHP, wind rotor, water turbine,…
 3 switchable consumers (otherwise Pr 2), different powers, e.g. heating element, electric heating, ...
 Is ideal for switching heating levels
 Max. 1 controllable consumer with linear phase angle or trailing-edge control 0/4 to 20 mA (0-10V)
 1 and / or 3-phase consumers
Goal:
 The highest possible internal consumption by switching in the largest-possible load combination
 Taking into account the analogue consumed power it is possible to switch on a relay if the relay is
switched on and the controlled consumer is reduced (relays have priority)
Measurement:
 The EFR3000 monitors the accumulated flow of energy at the grid connection point
(between the public power grid and the consumers / generators)
Feature:
 Analogue regulated consumers are taken into account
 Consumers that are already switched on are taken into account
(which is why the typical power consumption of the consumer has to be set)
Connection:
 All 7 levels have a common SWITCH-OFF value and the same delay ON + OFF and minimum on time
 If the infeed increases / the delivery falls under the set SWITCH-OFF value + load size of the stages,
the set delay ON time starts; if the limit value remains undercut for the entire time, the first consumer
is switched on and the set minimum startup time begins
 If the infeed increases / the delivery continues to fall so that the next largest combination could be
switched on, after the expiration of the set minimum startup time + delay ON time the smaller
combination will be switched off and the larger one switched on
 All combinations are switched on the same way
Disconnection:
 If the infeed decreases / the delivery increases over the set SWITCH-OFF value, the set delay OFF
time starts; if the SWITCH-OFF value remains exceeded for the entire time, the combination is
switched off after the expiration of the minimum startup time
 When switching back to the next lower level, the delay ON time does not run down again which
efficiently uses the excess energy
Example:
3 heating elements with the same/different power; all 3 can be operated simultaneously
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4.6
Program 4 (fixed starting sequence K1-K2-K3, SG ready)
Precondition:
 Own generating unit, e.g. photovoltaic, CHP, wind rotor, water turbine,…
 1…3 switchable consumers, same / different power e.g. heating element, heat pump (also SG ready),
rechargeable batteries, electric car, electric heating, air conditioning, ...
 Max. 1 controllable consumer with linear phase angle or trailing-edge control 0/4 to 20 mA (0-10V),
e.g. heating element
 1 and / or 3-phase consumers
Goal:
 Highest possible internal consumption by gradually switching in the consumers / loads in the fixed
starting sequence K1 – K2 – K3, at the same time the previously switched on consumers / loads stay
switched on
 The load at K2 is switched on earliest if K1 is switched on,
the load to K3 is switched on earliest if K2 is switched on
 It is ensured that Consumer K1 is always first switched on, for example, generates hot water
 Taking into account the analogue consumed power it is possible to switch on a relay if the relay is
switched on and the controlled consumer is reduced (relays have priority)
Measurement:
 The EFR3000 monitors the accumulated flow of energy at the grid connection point
(between the public power grid and the consumers / generators)
Feature:
 Analogue regulated consumers are taken into account
 Previously switched-in consumers are not taken into account, the actually measured value P L123 is
evaluated
Connection:
 If the infeed increases / the delivery falls under the limit ON value set for the load / consumer on K1,
the set delay ON time starts; if the limit value remains undercut for the entire time, the consumer on
K1 is switched on and the set minimum startup time begins
 If the infeed increases / the delivery continues to fall so that the consumer on K2 could also be
switched on, after the expiration of the set delay ON time it is also switched on
 If the infeed increases / the delivery continues to fall so that the consumer on K3 could also be
switched on, after the expiration of the set delay ON time it is also switched on
Disconnection:
 If the infeed decreases / the delivery increases over the limit OFF value set for the load / consumer,
the set delay OFF time starts; if the limit value remains exceeded for the entire time, the consumer is
switched off after the expiration of the minimum startup time
 All consumers are switched off the same way
 Shut-down does not take place in a fixed sequence
Example:
 Analogue output: Phase angle control with heating element;
K1: Heating element for service water heating; K2 Air-conditioner; K3: Heat pump,
K1 has priority before K2, K2 has priority before K3
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4.7
Program 5 (zero export / import added together, prevent/ limit infeed)
Precondition:
 Own generating unit, e.g. photovoltaic, CHP, wind rotor, water turbine,…
 Max. 1 controllable consumer with linear phase angle or trailing-edge control 0/4 to 20 mA (0-10V),
e.g. heating element
 Poss. battery storage system
Goals:
 Prevent infeed mixed energy or non self-generated energy,
Only charge batteries when there is excess power, only discharge batteries during delivery
 Prevent or also limit infeed
Measurement:
 The EFR3000 monitors the accumulated flow of energy at the grid connection point
(prevent delivery in the public power grid)
 The EFR3000 monitors the flow of energy immediately before the storage system
(prevent delivery from the public power grid)
Feature:
 Previously switched on consumers are not taken into account, the actually measured value P L123 is
evaluated
 The monitoring function is determined separately for each relay via the set limit values
MAX monitoring: Power Kx off > Power Kx on;
MIN monitoring: Power Kx off < Power Kx on;
 Delay OFF times can be set from 0 s
 Fixed relay function: Relay ON = x1-x4, Relay OFF = x1-x2
 Shut-down does not take place in a fixed sequence
Switch-off MAX monitoring:
 If the P L123 measurement increases over the power K1 OFF limit, the set delay OFF time starts; if
the limit value remains exceeded for the entire time K1 is switched off
Connect MAX monitoring:
 If the P L123 measurement falls under the power K1 ON limit, the set delay ON time starts; if the limit
value remains undercut for the entire time K1 is switched on
Switch-off MIN monitoring:
 If the P L123 measurement falls under the power K1 OFF limit, the set delay OFF time starts; if the
limit value remains undercut for the entire time K1 is switched off
Connect MIN monitoring:
 If the P L123 measurement increases above the power K1 ON limit, the set delay ON time starts; if the
limit value remains exceeded for the entire time K1 is switched on
Examples:
 K1: Advance warning 1, switch in consumer; K2: Advance warning 2, switch in consumer;
K3: Energy flow direction sensor (zero export / import sensor)
Battery storage system switched off
 K1: Air conditioning (limitation of the infeed power);
K2: Heating element for service water heating (limitation of the infeed power);
K3: Shut-down (of parts) of the EZE in order to limit the infeed power
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4.8
Program 6 (zero export / import device phase-wise, prevent/ limit infeed)
Precondition:
 Own generating unit, e.g. photovoltaic, CHP, wind rotor, water turbine,…
 Max. 1 controllable consumer with linear phase angle or trailing-edge control 0/4 to 20 mA (0-10V),
e.g. heating element
 Poss. battery storage system
Goals:
 Prevent infeed mixed energy or non self-generated energy,
Only charge batteries when there is excess power, only discharge batteries during delivery
 Prevent or also limit infeed
Measurement:
 The monitored phase be set independently for each relay,
an OR linked monitoring of all 3 phases is also possible
 The EFR3000 monitors the accumulated flow of energy at the grid connection point
(prevent delivery in the public power grid)
 The EFR3000 monitors the flow of energy immediately before the storage system
(prevent delivery from the public power grid)
Feature:
 Previously switched-in consumers are not taken into account; the measured value of the phase(s)
which is/are assigned to the respective relay is evaluated
 The monitoring function is determined separately for each relay via the set limit values
MAX monitoring: Power Kx off > Power Kx on;
MIN monitoring: Power Kx off < Power Kx on;
 Delay ON times can be set from 0 s
 Fixed relay function: Relay ON = x1-x4, Relay OFF = x1-x2
 Shut-down does not take place in a fixed sequence
Switch-off MAX monitoring:
 If the P L123 measurement increases over the power K1 OFF limit, the set delay OFF time starts; if
the limit value remains exceeded for the entire time K1 is switched off
Connect MAX monitoring:
 If the P L123 measurement falls under the power K1 ON limit, the set delay ON time starts; if the limit
value remains undercut for the entire time K1 is switched on
Switch-off MIN monitoring:
 If the P L123 measurement falls under the power K1 OFF limit, the set delay OFF time starts; if the
limit value remains undercut for the entire time K1 is switched off
Connect MIN monitoring:
 If the P L123 measurement increases above the power K1 ON limit, the set delay ON time starts; if the
limit value remains exceeded for the entire time K1 is switched on
Examples:
 K1: Advance warning 1, switch in consumer; K2: Advance warning 2, switch in consumer;
K3: Energy flow direction sensor (zero export / import device)
Battery storage system switched off
 K1: Air conditioning (limitation of the infeed power);
K2: Heating element for service water heating (limitation of the infeed power);
K3: Shut-down (of parts) of the EZE in order to limit the infeed power
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4.9
Analogue output function
The 0/4 to 20 mA current output can be optionally used as either an instrument transformer for power or as a
control output.
A single phase or even the sum of all phases (added up together) is evaluated/controlled.
The current output can be 0/2- 10V output as needed. To accomplish that, a resistor
is connected parallel to the output (20 mA * 500 ohms = 10 V). The input resistance of the controller must be
known.
Formula for dimensioning:
Parallel resistance = (Input resistance controller * 500) / (Input resistance controller - 500)
Requirements placed on the controller:
- The control must be linear since the regulated power is used to calculate the switching points
- The control must be made with phase control or trailing-edge control
(wave packet control and multicycle control are not supported)
The configured set point value, e.g. +0.1 kW = 100 watts delivery is regulated
If consumers are connected to Relays K1…3, the power triggered by the controller is taken into consideration
when switching in the relay. Consumers are switched on as soon as there is adequate power. At the same
time, switch-on and switch-off points and times programmed for the relays are taken into account.
If the device detects a failure of the load controlled with the analogue output (deviation from the setpoint >
control tolerance), the triggered power is not taken into account when switching in K1…3.
Example:
Load connected to controller = 1 kW (at 20 mA)
Controller set point = 0 kW (no delivery and no infeed)
Power connected to Relay K1 = 0.5 kW
Switch-on point K1 = -0.1 kW (= infeed 100 Watts)
As soon as the controller triggered power is so high that by connecting the load to K1 the switch-on point for
K1 is reached, the consumer connected to K1 is switched on. This is the case at 0.6 kW (= 60% of the 1 kW =
12 mA at the output).
Subsequently, under the new load conditions the controller tries to control back to the setpoint.
This also applies to Relays K2 and K3.
4.10 Function of the digital inputs PR1…4
The EFR3000 has 2 digital inputs for potential-free normally open contacts. That permits selectively switching
each output relay on or off at any time. Consumers can therefore be blocked or switched on with external
control. Y2 overwrites Y1
Function examples:
 Heating element, shut-down by an external thermostat when the temperature is reached
 Heat pump, off periods through timer
 Priority control, washing machine remains on until it is finished
 Charge E-auto at fixed time
 Generate hot water on demand
4.11 Function of the digital inputs PR5…6
In program 5 and 6 the digital input Y1 takes on the function of an external reset. A locked trigger can be
externally deleted again (button or switch). The function is similar to a reset by the device button. If Y1
remains permanently closed, a locked trigger can be immediately deleted again.
Digital input Y2 is not occupied with any function.
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5 Important notes
When using phase-angle controllers / trailing-edge controllers comply with the specifications of the
grid operator.
6 Installation/assembly
External current transformers:
 External current transformers are required to measure currents.
 The secondary lines S1 (K) and S2 (L) must not be grounded.
 The secondary circuits of the current transformers must never be operated open
(dangerous electrical voltage)
For switching 3-phase rotating (motor-driven) loads, protection must be used.
The device can be fastened:
 Panel mounted distributor installation on 35 mm mounting rails as per DIN EN 60715
 With M4 screws for wall installation. (additional bar not included in the scope of delivery)
Connect per connection diagram or type plate.
EFR3000
12610-0702-00
Page 13 / 28
www.ziehl.de
7 Connection diagrams
7.1
1x directly, 1x coupling relay 1 phase load, 1x coupling relay 3-phase load and
controlled load to analogue output
Info:
Loads/consumers of up to maximum 2kW (9 A) can also be switched without coupling relay.
EFR3000
12610-0702-00
Page 14 / 28
www.ziehl.de
7.2
SG ready heat pump (operating condition 3 + 4, Pr4 ) and controlled load on analogue
output
EFR3000
12610-0702-00
Page 15 / 28
www.ziehl.de
7.3
Energy flow direction relay (zero export device) without delivery into the public grid
Info:
Setting MIN monitoring: Power Kx off < Power Kx on
7.4
Energy flow direction relay (zero import device) without delivery from the public grid
Info:
Setting MAX monitoring: Power Kx off > Power Kx on
EFR3000
12610-0702-00
Page 16 / 28
www.ziehl.de
7.5
1 phase connection to L1 (!)
Info:
Loads/consumers of up to maximum 2kW (9 A) can also be switched without coupling relay.
Do not connect any cables to unassigned measuring inputs!
EFR3000
12610-0702-00
Page 17 / 28
www.ziehl.de
8 Commissioning
Convenient configuration is also possible through the following web interface with transmission through USB
memory stick:
http://www.public.ziehl.com/efr3000/
8.1
Information on operating
2s: Reset
Increase value,
Scroll up,
Min/max values
Back,
move/scroll left
Confirm,
move/scroll right
Decrease value,
move/scroll down
2s: Menu
8.2
Switch on the unit / Language selection
During the initial start the unit displays the language selection. Once the language has been selected
monitoring starts. The language can be changed at any time in the menu (Options -> language).
8.3
Program selection
The suitable program must be set on the EFR3000 in accordance with the application.
Setting procedure: Program&Code -> Program No
Pr
Description (switching sequence)
Analysis
1
Max 1 Load / Consumer ON
(the largest of up to 3 consumers is switched
on)
2
Max 3 loads/consumers ON
(largest load combination of 3-stages)
3
Max 3 loads (otherwise Pr2) /consumers ON
(largest load combination of 7-stages)
3 loads/consumers ON
4* (K1-K2-K3 are switched on in a fixed
sequence), SG ready
Energy flow direction relay (zero export /
import device)
5
max 3 limit values
(e.g. 2xadvance warning, 1 x shut-down)
Energy flow direction relay (zero export /
import device)
6**
max 3 limit values, separated by phase or
all 3 phases simultaneously
* Factory set
** Standard zero export / import device (L123)
Accumulative power
L123
+
Total connected
loads/consumers
+
Analogue controlled
Load
Accumulative power
L123
Analogue
output 0/4 to
20mA
RS485
Control:
Load L1 / L2 /
L3 / L123 (3phase)
or
Modbus
Instrument
transformer:
kW-L1 / L2 / L3 /
L123 (added-up)
Power L1 / L2 / L3
or
L123 (=1 of 3)
Hint: When changing programs, all parameters of the selected program are reset to “default settings“ (see
table „Default settings“). Only change the parameters after you have selected the correct program.
EFR3000
12610-0702-00
Page 18 / 28
www.ziehl.de
8.4
Description of the parameters
Menu
Parameters
Current
transformer
Primary
Secondary
Relay
Times
Limits
Digital
inputs
EFR3000
Explanation
Primary current of the current-transformer
Secondary current of the current-transformer
Max power consumption of the connected
load, depending on the program the activated
loads are offset against the measured value,
Output to K1/2/3
After connecting a load the appropriate phase
has to be changed by this amount
(for 3-phase load by 1/3 each)
Phase(s) from which the load is supplied,
after connecting a load, the value has to be
Phase K1/2/3
changed on the related phase
Pr6: Phase which is being evaluated, L123 all
3 phases are evaluated
In which relay setting the load is switched on
Load ON K1/2/3
(Pr 5+6 11-12 = Alarm)
On: Relay switches back automatically
Auto reset K1/2/3
Off: Relay only switches back after a manual
(Pr5+6)
reset (Y0-Y1 >100ms or close or press 2s
button  )
The connect condition must be met
Delay on K1/2/3
uninterrupted for this time before it is
switched on (Pr5+6 reconnection time)
If a load is switched on, independent of the
measured value it remains switched on until
Min on K1/2/3
the expiration of this time is activated
(minimum runtime)
The disconnect condition must be met
Delay off K1/2/3
uninterrupted for this time before it is
switched off (Pr5+6 tripping time)
The period begins with the connection of a
load, within this time a load change has to
Last change K1/2/3
occur on the respective phase; otherwise a
warning appears
Pr1…4: If the measured value (+ Total
Output
switched on consumers) falls below this value
K1/2/3 on
then the delay ON time starts
If the measured value rises over this value
Performance
and the minimum switch-on time has expired,
K1/2/3 off
the delay OFF time starts
Pr5+6: Power Kx off > Power Kx on = MAX monitoring (exceed)
Power Kx off < Power Kx on = MIN monitoring (undercut)
Shut-down value
Reset point; if the measured value rises
(Pr3)
above this value, one stage is switched back
When digital input Y1 is closed, each relay
Y0-Y1
can be individually be switched on / off or all
relays on / off
When digital input Y2 is closed, each relay
Y0-Y2,
can be individually be switched on / off or all
Y2 overwrites Y1
relays on / off
12610-0702-00
Page 19 / 28
Adjustment
range
1…1000 A
1.0...5.0A
0.1…500.00 kW
L1 / L2 / L3 /
L123
11-14 / 11-12
on / off
10s…23h59m59s
10s…23h59m59s
10s…23h59m59s
(Pr5+6:
0s…59m59,99s)
10s…23h59m59s
-999.99…999.99
kW
-999.99…999.99
kW
-999.99…999.99
kW
K1 on / K1 off /
K2 on / K2 off /
K3 on / K3 off /
K1-3 on /
K1-3 off
www.ziehl.de
Menu
Analogue
output
Parameters
Explanation
Function
Analogue output as an instrument
transformer (kW-Lx) or as a control output
(Load-Lx) for, e.g., linear phase angle control
Mode
0 or 4 mA … 20 mA
Zero point
(instrument
transformer)
Full-scale
(instrument
transformer)
Set point
(Load / Control)
Max. power
(Load / Control)
Control
speed
Control interval
Control tolerance
Address
Interface
Baud rate
Parity
Stop bit
EFR to USB
USB
USB to EFR
Firmware
Program &
Code
Program no.
Default settings
Code lock
Language
Brightness
Options
Dimming time
Num. interval
Simulation
EFR3000
Relay
Function
12610-0702-00
Adjustment
range
off / kW-L123 /
kW-L1 / kW-L2 /
kW-L3 / LoadL123 / Load-L1 /
Load-L2 / LoadL3
0-20 mA / 4-20
mA
Power in kW for zero point,
Power in kW for full-scale
-: Feed in (excess) +: Delivery
(Zero point and full-scale may also have
different signs)
-999.99…999.99
kW
With sufficient load regulates the analogue
output to this value
Max. power consumption of the controlled
load at 20mA
Slow (20%)…fast (90%),
Control response = (difference between the
set point-actual value) * 20…90%
The set point value is readjusted in this
interval; fast (0.5s)…slow (5.0s)
Difference set point actual > Control
tolerance = Failure of the load is detected,
e.g. due to a thermostat being switch-off; load
on the analogue output is not taken into
account by K1-3 when additional loads are
switched on
Address of the EFR3000
-999.99…999.99
kW
-999.99…999.99
kW
0.1…500.00 kW
20…90 %
00.5…05.0 s
5…50 %
1…247
4.8 / 9.6 / 19.2 /
Setting of the baud rate
57.6 / 115.2 kBd
Setting of the parity
Even / odd / no
Number of stop bits, 1 or 2
1/2
If the current settings are saved on a USB memory stick (.cfg),
these settings can be transmitted to the EFR3000 at any time or
even applied to a different EFR3000 regardless of the firmware
version *
If the settings are loaded from the USB memory stick (.cfg), the
current settings will be overwritten and are not backed up
Once the file has been selected (.hex), the firmware update starts,
configuration is maintained after an update
Setting the program
1…3
Set the parameter to factory settings
yes / no
Switch code lock on/off, Factory preset code
504, for details please refer to
0…9999
8.6 Code lock / Code reset
Selects the language
German / English
The brightness to which the display is
20…99 %
dimmed after the expiry of the dimming time
Starts with the last press of a button; after
expiration of the time the display is dimmed
10s…01h00m00s
to the set brightness value
Time interval in which the measured values
00.1…02.0 s
are updated (to smooth the display)
Simulate relay (On / Off)
Complete functional simulation, analogue output and digital inputs
Page 20 / 28
www.ziehl.de
Menu
Parameters
Explanation
Firmware version
Serial number
Display of the firmware version
Display of the serial number
Display of the operating hours (zero voltage
retentive)
Displays the number of errors that occurred
(zero voltage retentive)
Clears the error counter
Displays the total switch-on time of the relay
(is also indicated on display page 3.)
Operating hours
Display error
counter
Clear error counter
Display switch-on
time
Clear switch-on
time
Warnings
Info
Adjustment
range
00-0
0…999999
h
Err 1…9
Delete
0…99999 min
Clears the entire switch-on time of the relay
Delete
Current pending warnings with help text
When configuring through the web interface (transmission through
Comments
USB memory stick), a comment with a maximum of 208
characters can be stored and is displayed here
* Possibility to store settings e.g. summer / winter
8.5
Description of the display pages (measured values)
1/4
P L123
P L1
P L2
P L3
Power added together (sum of the 3 phases) in kW
Power L1 in kW
Power L2 in kW
Power L3 in kW
2/4
U L1
U L1
U L2
I L1
I L2
I L3
Voltage L1 in V
Voltage L2 in V
Voltage L3 in V
Current L1 in A
Current L2 in A
Current L3 in A
3/4
last own consume
K1…3 Min On time
K1…3 delay On time
K1…3 delay Off time
Load K1…3 On time
4/4
Firmware
Program No.
Digital inputs
Analog output
Code lock
RS485
Warnings
EFR3000
12610-0702-00
Page 21 / 28
Time without internal consumption (via
EFR3000)
Counts down the minimum switch-on time
Counts down the delay ON time
Counts down the delay OFF time
Total switch-on time of the load on relay
K1…3 (zero voltage retentive)
Firmware version
Current program
Current state of the digital inputs
Active current on the analogue output
Current state of the code lock
Rx: Receive data Tx: Send data
Current pending alarms (device still works,
but maybe not optimally)
www.ziehl.de
8.5.1
Explanation of the symbols
= Apply and save value / setting
= Back, value / parameter will not be saved
= Help text on the value / parameter
8.5.2
Display Examples
Display Menu
8.6
Display Time Setting
Display Limit value setting
Code lock / Code reset
Program & Code -> code lock
You can protect all parameters by enabling the code lock. The factory setting is Code 504.
In the event of problems with the code lock (forgot the code) the lock can be switched off and the code reset
to 504 when switching the power on by keeping the key pressed up (approx. 4s) until the message Code off is
displayed.
8.7
Simulation
Simulation -> relays
Here you can set the output relay, regardless of the measured ON or OFF value.
That will actually turn the connected loads / consumers on or off!
 = Relay ON 11-14
 = Relay ON 21-24
 = Relay ON 31-34
K1
K2
K3
Simulation -> function
In the simulation function a measurement value can be simulated even without connecting measuring inputs.
All functions of the device operate as if this value is actually being measured. Suitable for the simulated
measured value, the value of analogue output is also displayed.
Psim [kW]
Y1, Y2
t
Ph
P-Meas
Y1, Y2
Times
Analog
Simulated measured value
Simulation of digital inputs
 = Active time  = Fixed time 1s
Phase being simulated
Measured value for evaluation
(simulated value +
switched on loads/consumers)
Digital inputs status
Time status
Value at the analogue output
The set value is simulated until the simulation is excited by pressing the  or  button several times. If no
key is pressed for 15 minutes the simulation is also exited.
EFR3000
12610-0702-00
Page 22 / 28
www.ziehl.de
9 Factory setting Pr1…4
Pr1
Pr2
Pr3
Pr4*
largest
only
1-stufig
largest
combination
3-stufig
largest
combination
7-stufig
fixed
sequence
K1-K2-K3
60
1
1,00
2,00
3,00
L1
L2
L3
11-14
21-24
31-34
00:05:00
00:04:30
00:04:00
00:05:00
00:05:00
00:05:00
00:03:00
00:03:30
00:04:00
00:01:00
00:01:00
00:01:00
-1,20
-0,10
-2,20
-0,10
-3,20
-0,10
Off
Off
kW-L123
0-20 mA
10,00
-10,00
-0,10
1,00
60
1
1,00
2,00
3,00
L1
L2
L3
11-14
21-24
31-34
00:05:00
00:04:30
00:04:00
00:05:00
00:05:00
00:05:00
00:03:00
00:03:30
00:04:00
00:01:00
00:01:00
00:01:00
-1,20
-0,10
-2,20
-0,10
-3,20
-0,10
Off
Off
kW-L123
0-20 mA
10,00
-10,00
-0,10
1,00
60
1
1,00
2,00
3,00
L1
L2
L3
11-14
21-24
31-34
-
-0,50
Off
Off
kW-L123
0-20 mA
10,00
-10,00
-0,10
1,00
60
1
1,00
2,00
3,00
L1
L2
L3
11-14
21-24
31-34
00:05:00
00:04:30
00:04:00
00:05:00
00:05:00
00:05:00
00:03:00
00:03:30
00:04:00
00:01:00
00:01:00
00:01:00
-1,20
-0,10
-2,20
-0,10
-3,20
-0,10
Off
Off
kW-L123
0-20 mA
10,00
-10,00
-0,10
1,00
%
90
90
90
90
%
ss,s
%
0,5
25
1
9,6 kBd
Even
1
1
No
Off
0,5
25
1
9,6 kBd
Even
1
2
No
Off
0,5
25
1
9,6 kBd
Even
1
3
No
Off
0,5
25
1
9,6 kBd
Even
1
4
No
Off
ss,s
%
* factory setting
Menu
Parameter / Unit
Current
transformer
Primary
Secondary
power at K1
power at K2
power at K3
phase K1
phase K2
phase K2
load on K1
load on K2
load on K3
auto Reset K1
auto Reset K2
auto Reset K3
delay on K1
delay on K2
delay on K3
min on K1
min on K2
min on K3
delay off K1
delay off K2
delay off K3
load step K1
load step K2
load step K3
power K1 on
power K1 off
power K2 on
power K2 off
power K3 on
power K3 off
limit off
Y0-Y1
Y0-Y2
function
mode
Zero
full scale
target value
max. power
regulation
speed
regul. interval
regul. tolerance
adress
baud rate
parity
stop bit
program no.
default setting
code lock
Relay
Times
Limits
Digital
inputs
Analog
output
Interface
Program &
Code
EFR3000
12610-0702-00
A
A
kW
Ph.
time
kW
kW
kBd
Page 23 / 28
00:05:00
00:05:00
00:03:00
www.ziehl.de
Users Data
A
A
kW
kW
kW
Ph
Ph
Ph
hh : mm : ss
hh : mm : ss
hh : mm : ss
hh : mm : ss
hh : mm : ss
hh : mm : ss
hh : mm : ss
hh : mm : ss
hh : mm : ss
hh : mm : ss
hh : mm : ss
hh : mm : ss
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kBd
Pr1
Pr2
Pr3
Pr4*
Parameter / Unit
largest
only
1-stufig
largest
combination
3-stufig
largest
combination
7-stufig
fixed
sequence
K1-K2-K3
language
brightness
dimming time
display interval
firmware Version
serial number
English
50
00:05:00
0,5
0-00
-
English
50
00:05:00
0,5
0-00
-
English
50
00:05:00
0,5
0-00
-
English
50
00:05:00
0,5
0-00
-
* factory setting
Menu
Options
Info
%
time
ss,s
Users Data
%
hh : mm : ss
ss,s
10 Factory setting Pr5+6 (zero export / import device)
Pr5
Pr6
zero exp.
sum
zero exp.
1 of 3*
60
1
Off
Off
Off
00:00,10
00:00,10
00:00,10
00:00:10
00:00:10
00:00:10
0,50
0,10
-0,50
-0,10
0,70
0,30
kW-L123
0-20 mA
10,00
-10,00
-0,10
1,00
60
1
L123
L123
L123
Off
Off
Off
00:00,10
00:00,10
00:00,10
00:00:10
00:00:10
00:00:10
0,50
0,10
-0,50
-0,10
0,70
0,30
kW-L123
0-20 mA
10,00
-10,00
-0,10
1,00
%
90
90
%
ss,s
%
0,5
25
1
9,6 kBd
Even
1
5
No
Off
0,5
25
1
9,6 kBd
Even
1
6
No
Off
ss,s
%
* factory setting zero export device
Menu
Parameter / Unit
Current
transformer
primary
secondary
phase K1
phase K2
phase K3
auto Reset K1
auto Reset K2
auto Reset K3
delay off K1
delay off K2
delay off K3
delay on K1
delay on K2
delay on K3
power K1 on
power K1 off
power K2 on
power K2 off
power K3 on
power K3 off
function
mode
Zero
full scale
target value
max. power
regulation
speed
regul. interval
regul. tolerance
adress
baud rate
parity
stop bit
program Nr
default setting
code lock
Relay
Times
Limits
Analog
output
Interface
Program &
Code
EFR3000
12610-0702-00
A
A
time
kW
kW
kBd
Page 24 / 28
Users Data
A
A
mm : ss,ss
mm : ss,ss
mm : ss,ss
hh : mm : ss
hh : mm : ss
hh : mm : ss
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
kBd
www.ziehl.de
Menu
Options
Info
Pr5
Pr6
Parameter / Unit
zero exp.
sum
zero exp.
1 of 3*
language
brightness
dimming time
display interval
firmware Version
serial number
Deutsch
50
00:05:00
0,5
0-00
-
Deutsch
50
00:05:00
0,5
0-00
-
%
time
ss,s
Users Data
%
hh : mm : ss
ss,s
11 Technical data
Supply voltage Us (A1, A2)
Tolerance
power consumption
DC/AC 24 – 240 V 0/50/60 Hz
DC 20,4 - 297 V
AC 20 - 264 V
<3W
< 9 VA
Output relay K1, K2, K3
Switching voltage
min. voltage / current
conventional thermal current Ith
Switching power max. AC cos φ = 1
Switching power max. DC (ohm)
Contact service life, electr. cos φ = 1
Rated operational current
3 x 1 change over contact
max. AC 300 V; DC 300 V
12 V 10 mA
max. 9 A
2000 VA
0,3 A 300 V / 0,4 A 120 V / 0,8 A 60 V / 9 A 28 V
105 operating cycles 300 V / 9 A
AC-15 Ie = 6 A Ue = 250 V
DC-13 Ie = 2 A Ue = 24 V
DC-13 Ie = 0,2 A Ue = 250 V
Test conditions
Rated impulse withstand voltage
Overvoltage category
Pollution degree
Rated insulation Ui
Operating time
EN 61010-1
4000 V
III
2
300 V
100 %
Wiring connection
Supply voltage
(Us)
Measuring inputs (Mess)
Digital inputs
(Dig)
Interface
(RS485)
Analog Output
(Analog)
Relay
(Rel)
Isolation / Test voltage
Installation conditions
Operating temperature
Storage temperature
Altitude
Climate resistance
Wiring temperature
Vibration resistance EN 60068-2-6
EFR3000
12610-0702-00
A1, A1’, A2
1I1(k), 1I2(l), 2I1(k), 2I2(l), 3I1(k), 3I2(l), L1, L2, L3, N
Y0, Y1, Y2
D0, D1
GND (┴), I+
K1: 11, 12, 14 / K2: 21, 22, 24 / K3: 31, 32, 34
Us → Mess, Dig, RS485, Analog, Rel DC 3820 V
Mess → Dig, RS485, Analog, Rel
DC 3820 V
Rel → Dig, RS485, Analog
DC 3820 V
Rel (K1) → Rel (K2) → Rel (K3)
DC 3820 V
-20 °C ... +55 °C
-20 °C …+70 °C
< 2000 m above sea level
5-85% rel. humidity, no condensation
-5 °C …+70 °C
2 … 13,2 Hz ±1 mm 13,2 ... 100 Hz 1 g
2…25 Hz ±1,6 mm 25 ... 150 Hz 5 g
Page 25 / 28
www.ziehl.de
EMC-Tests
EMC emission
EMC immunity
EN 61326-1
EN 61326-1; CISPR 11 class B
EN 61326-1 industrial environment
External Inputs
Digital Inputs Y0/Y1
Digital Inputs Y0/Y2
ca. DC 18 V / 3,5 mA
function programmable
function programmable
Measurement of voltage (L1 / L2 / L3 towards N)
Voltage (Phase – N)
Measuring principle
Max. error of measurement
Input resistance Phase – N
Power consumption Phase – N
AC 35,0 … 330,0 V, 45 … 65 Hz
True RMS
±0,5% of fullscale , ± 1 Digit
> 600 kΩ
max. 0,15 VA
Measurement of current ( 1I1(k) – 1I2(l), 2I1(k) – 2I2(l), 3I1(k) – 3I2(l) )
Nominal current
AC 1 A / 5 A
45 … 65 Hz
Measuring range
AC 0,002 … 6,000 A 45 … 65 Hz
Resolution
1 mA
Measuring principle
True RMS
Max. error of measurement
±0,5% of fullscale , ± 1 Digit
Overload capacity
continuously
8A
max. 1 s
25 A
Inputs resistance
ca. 25 mΩ
Power consumption
ca. 0,25 VA (1 A)
0,63 VA (5 A)
Connection of current measurement only with external current transformers:
External current transformer Primary
1 … 1000 A
External current transformer Secondary
1,0 … 5,0 A
Measurement of active power
Range 1 A, per Phase / total
Range 5 A, per Phase / total
Range max., per Phase / total
Resolution
Max. error of measurement
Reaction time zero export / import device
Multiply values by factor of current transformers
-300 … 300 W
/ -900 … 900 W
-3,96 … 3,96 kW / -9,99 … 9,99 kW
-396 … 396 kW / -999 … 999 kW
1W
±1% of fullscale ± 1 Digit
< 500ms + delay off
RS485 Interface (D0 – D1)
Protocol
Baud rate
Parity
Stop bits
Max. cable length
Modbus RTU
4800, 9600, 19200, 57600, 115200 Baud
no, odd, even
1/2
approx. 1000m at 19200 Baud
Analog output (GND (┴), I+)
Max. error
Temperature factor
Resolution
Load
error load
Regulation/ control
EFR3000
12610-0702-00
DC 0/4 – 20 mA for active power ±999 kW, scalable
±0,3 % of fullscale (ab 0,1 mA)
+ error of measurement active power
< 0,015 % / K
11,6 Bit < 6,1 μA
≤ 500 Ω
(250 Ω – load) / 250 Ω * 0,3 % of current
linear, phase control or phase alignment,
with reinforced insulation / protective separation
Page 26 / 28
www.ziehl.de
Housing
Mounting depth
Width
Dimensions (W x H x D)
Terminals for measuring inputs:
Wiring connection single strand
Finely stranded with wire end ferrule
Other terminals:
Wiring connection single strand
Finely stranded with wire end ferrule
Stripping length / specify torque
Protection class housing / terminals
Mounting
Weight
construction type V8, distribution board
56 mm
8 units
140 x 90 x 58 mm
1 x 0,34 – 4,0 mm² / AWG 22 - 12
1 x 0,34 – 2,5 mm² / AWG 22 - 12
1 x 0,34 - 2,5 mm² / AWG 22 - 12
1 x 0,1 -1,5 mm² / AWG 27 - 14
8 mm / 0,5 Nm
IP 30 / IP20
Snap-on fastening on 35 mm mounting rail acc.
EN 60 715 or with M4 screwed attachment
(additional bar not included in the scope of delivery)
ca. 300 g
We reserve the right to make technical changes
12 Mounting type V8
Dimensions in mm
1
2
3
4
5
6
7
Oberteil / cover
Unterteil / base
Riegel / bar for snap mounting
Plombenlasche / latch for sealing
Frontplatteneinsatz / front panel
Kennzeichen für unten / position downward
Riegel bei Wandbefestigung mit Schrauben. Riegelbohrung Ø 4,2 mm / for fixing to wall
with screws, Ø 4,2 mm
EFR3000
12610-0702-00
Page 27 / 28
www.ziehl.de
13 Troubleshooting and corrective measures
Error messages appear in the display footer displayed in red.
( Err ) As soon as a fault is resolved this message disappears
automatically. I.e. error messages do not have to be acknowledged.
If the key  is pressed in Display page 4, a help text appears for
each pending fault.
Fault
Sign is not correct
Cause
Current transformer connected the
wrong way around
Measured value changes
when connecting a load in
the wrong direction
Check the current transformer
Device function is not
plausible
False configuration
Implausible measured values
Neutral conductor not connected
The display is blank
Supply voltage not connected
-EEE or EEE appears in the
display
Measurement is above/below range
Screen too dark
AD error
Calibration values
Parameter value
The display is dimmed after the set time
( Options -> dimming time ); the
brightness is set too low (Options ->
dimming time )
Internal AD converter error
Calibration values are outside of
tolerance
Parameter value is outside of the
permissible range
Corrective measure
+:Delivery -:infeed,
rotate current transformer,
Exchange S1(k) and S2(L) on the
EFR3000 (switch off primary
circuit first! )
Get warnings
( Info -> warnings ); the EFR3000
recognizes any incorrect settings /
functions and displays suggested
solutions
Connect the neutral conductor
Connect supply voltage in
accordance with the page type
plate at terminals A1 and A2
Measured voltage is too small or
too large; comply with
measurement range
Increase brightness
( Options -> brightness )
Do a reset; interrupt supply
voltage for >5s *
In the event of problems with the
code lock (forgot the code) the
lock can be switched off and the
The device cannot be
Code lock activated
code reset to 504 when switching
configured
the power on by keeping the key
pressed upward (approx. 4s) until
the message Code Off appears.
* Sent the unit to the factory for repair if the error is not resolved after reset
14 Tips and Tricks
Short periods of time (delay on/off, minimum switch-on time) allow the EFR3000 a faster response to changes
and better optimization.
Attention: Some consumers have limited switching frequencies or processes (washing machine) and must not
be interrupted.
The current output can also be used as 0/2- 10V output as needed. To do that, wire in a resistor parallel to the
output. The input resistance of the controller must be known.
Formula for dimensioning:
Parallel resistance = (Input resistance * 500) / (Input resistance - 500)
EFR3000
12610-0702-00
Page 28 / 28
www.ziehl.de
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