POWER FACTOR CONTROLLERs
PFR-X **R / PFR-M **T
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Because excellent capacitors are not enough
The plug’n’play power factor controllers of our PFR-series cal-
culate the active and reactive power in the mains from the mea-
sured current and voltage. Their intelligent control algorithm
optimizes the switching sequences and guarantees for short
regulation times with a minimum number of switchings. At the
same time, equal distribution of switchings for capacitors of
equal size extends the lifetime of the capacitors. The integrated
connection control immediately detects in which phases voltage
and current are measured, and adapts the entire system auto-
matically. The very low current threshold of 15 mA allows for
very reliable and exact PF control. 1 A as well as 5 A current
transformers can be used without additional manual adjust-
ments. The power supply of PFR-X covers a voltage range of
90...550 V, the PFR-M supply is rated for a voltage range of 207-
253 V; it can easily be modified to 100-132 V by a jumper setting.
power factor controllers
The rated mains voltage is the only value to be entered before commencing operation. The controller blocks operation to protect the
capacitors if the tolerances of this voltage setting are exceeded during operation. All other relevant parameters have been preset by
the manufacturer for immediate start of operation in nearly any common configuration. Individual adjustment and optimization of the
control parameters is possible at any time, even during operation of the equipment.
Once connected, the size of capacitors or reactors is detected automatically. The life cycle of capacitors is monitored via the degradati-
on of capacitance, and a pre-failure alarm can be provided.
The controllers will operate correctly even if the value of the current transformer ratio has not been entered. Please note that in
case of the PRF-X, all display functions related to current measurements will be disabled.
PFR-M can monitor the temperature inside the capacitor cabinet by means of an integrated sensor. For PFR-X, the sensor comes as
an optional part which can simply be plugged onto the back of the case. It can activate a fan connected to one of the output relays
(PFR-X)/the digital output (PFR-M), or switch off the capacitors if required. External thermostats may be connected in parallel to
the integrated temperature sensor (PFR-X)/to the digital input (PFR-M) for monitoring of the temperature in other related cabinets.
For maintenance purposes, all branches can be switched manually.
Display
The backlit LC-Display delivers information about the equipment itself and about the mains conditions. It is also necessary
for the controller setup.
Reported mains conditions
PFR-X: Voltage, THD U, current, active power, reactive power, apparent power, frequency, ∆Q (power to be compensated) ,
detailed voltage harmonics 3...19, cosφ
PFR-M: Voltage, THD U, current, THD I, active power, reactive power, apparent power, frequency, ∆Q (power to be compensated),
detailed voltage and current harmonics 3...30, cosφ, counters
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POWER FACTOR CONTROLLERs
PFR-X **R / PFR-M **T
Reported information on the equipment
Passed operation time (hours), number of switchings per branch, max temperature in the equipment, average power factor,
actual power per branch, actual percentage of originally installed branch power.
The cosφ and status of branches are displayed permanently.
Monitoring
The monitoring functions ensure long and reliable operation PFR-M only:
of the capacitor equipment: - cosφ alarm
- zero-voltage tripping to avoid contactor fibrillation - frequency alarm
- overvoltage protection - overload Q
- over-temperature protection - overload P
- harmonic monitoring of voltage (PFR-M: voltage and current) - P export
- detection of defect branches (with adjustable threshold value)
- alarm at under-compensation
- maintenance reminder
- fan control (using one of the branch outputs)
- overcurrent
power factor controllers
- no current
Malfunctions and status signals of the equipment are indicated in the LC-Display. Malfunctions can also be transmitted through
the isolated alarm relay (PFR-X: N-O contact, PFR-M: S-P-D-T contact) or to the digital output (PFR-M only).
Special Features of PFR-M
- Transistor outputs for the operation with thyristor switches (dynamic compensations)
- Optionally available with relay outputs or as hybrid version (PFR-M 12RT) with 6 relay outputs for static loads
and 6 transistor outputs for dynamic loads.
- Fast algorithm for dynamic thyristor operation (switching time ~20 ms).
- Available with optional modbus communication
- Optional 3 phase current measurement
Modbus Option
The MODBUS extension of the PFR-M offers the possibility to read values from, and modify the settings of, the device. The PFR-M
can transmit up to 30 values. The MODBUS-protocol doesn‘t restrict the user to one single physical transmission system.
With the bus-capable RS485 interface of the PFR-M, it is possible to connect more than one controller to a single pair of
wires and access the units by use of an ID number. Many commercial devices and PLCs are able to use the MODBUS proto-
col, either as bus master or slave. Various SCADA solutions are also available from a variety of vendors. So, the integrati-
on of the PFR-M in a new or existing bus-system is only a minor issue.
Type outputs measurement Order code Type Range
PFR-X 06R 6 relays 1ph 11090.100-06.R
PFR-X 12R 12 relays 1ph 11090.100-12.R
PFR-M 06T 6 transistors 1ph 11050.100-06.T
PFR-M 12T 12 transistors 1ph 11050.100-12.T
PFR-M 12RT 6 relays + 6 transistors 1ph 11050.100-12.H
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Data Chart
General
Feature PFR-X PFR-M
Technical
Data Operation voltage 90-550 V rms, 45…65 Hz, 5 VA, 1 ph 230 V (optional 115 V) rms, 45…65 Hz
Measuring voltage 90-550 V rms 50-530V rms
No of output relays 6, 12 6, 12
Output rating 250 V / 5 A 8 … 32 V DC
hybrid option: also 250 V / 5 A
Switching delay 1 s … 6500 s 20 ms
Display LCD graphic LCD
Operating elements rubber buttons foil keyboard
Measuring current 15 mA … 6 A 15 mA … 6 A
Adjustable transformer ratio 1 ... 9600 1 ... 6500
External Alarm contact isolated relay, closed contact isolated relay, changeover contact
Terminals multiple contact plug (2.5 mm²) multiple contact plug (2.5 mm²)
Fuses to be installed externally (see manual) to be installed externally (see manual)
POWER FACTOR CONTROLLERS
Fan control through branch output digital output (DO)
Interface TTL (back) MODBUS RS485 (optional)
Ambient temperature -20°C … 70°C 0°C … 70°C
Storage temperature -20°C ... +85°C -20°C … +85°C
Humidity 0 % … 95 % (no condensation)
Temperature measurement NTC
Protection class Front IP50 (IP54 with special gasket)
Back IP20
Pollution degree 3 (DIN VDE 0110, Pt 1 / IEC60664-1)
Mounting position no restrictions
Case Front plastic (UL94: V0)
Back metal
Dimensions H × W × D 144 × 144 × 58 mm (window size 138 × 138 mm)
Weight ca. 0.6 kg
Standards DIN VDE 0110 1 (IEC 60664-1:1992)
VDE 0411 1 (IEC/DIN EN 61010-1:2001)
VDE 0843 20 (IEC/DIN EN 61326: 1997 + A1:1998 +A2: 2000)
GOST 15150-69
UL 508 – Industrial Control Equipment
CSA C22.2 No. 14-M95 - Industrial Control Equipment
Approval marks UL, Rostest, c-UL
CE Conformity
The controller is declared to conform to the following European Directives:
2014/35/EU Low-Voltage Directive
2004/108/EG EMC directive
Vertrieb Schweiz & Technische Beratung
ADC Advanced Datacommunication Consulting AG
74 Renggerstrasse 3, CH-8038 Zürich
Telefon +41 (0)44 485 40 50 Fax +41 (0)44 485 40 59
E-Mail kondensatoren@adc-ag.ch www.adc-ag.ch
