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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
- 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 POWER FACTOR CONTROLLERS
- 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 11091.100-06.R
PFR-X 12R 12 relays 1ph 11091.100-12.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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