multicomp D6

The multicomp D6-xxx-7 reactive power controller is the measuring and control unit for reactive power compensation systems.

The reactive power controller developed and manufactured in Schwabach works automatically in 4-quadrant operation (generator operation), i.e. even when feeding back into the utility grid, missing compensation power is easily detected and compensated. This is particularly important in view of the increase in companies’ own generation systems, e.g. biogas or PV systems.

To protect the capacitors from overvoltages, overcurrents and excessive harmonic loads, the reactive power controller has grid analysis and limit value monitoring functions. In addition, the integrated temperature measurement input monitors the ambient temperature in the compensation system and switches on the fan if a specified limit temperature is exceeded. You can also expand the controller with the secureC safety and maintenance module.

The multicomp D6 reactive power controller also has an interface for connection to the KBR eBus, allowing all settings to be made conveniently from a PC. Bus communication can also be switched from KBR eBus to Modbus RTU/ASCII.

Measuring accuracy
Electricity	± 0.5 % / ± 1Digit
Tension	± 0.5 % / ± 1Digit
Services	± 1 % / ± 1Digit
Power factor	± 2 % / ± 1Digit
Frequency	± 0.1 Hz / ± 1Digit

Measuring accuracy

Electricity

± 0.5 % / ± 1Digit

Tension

± 0.5 % / ± 1Digit

Services

± 1 % / ± 1Digit

Power factor

± 2 % / ± 1Digit

Frequency

± 0.1 Hz / ± 1Digit

Device memory
Working, Data & parameter memory	2 MB Flash
Program memory	512 kB Flash
Memory type	Ring buffer
Extreme values (max./min.)	The maximum values that have occurred since mains connection or manual extreme value deletion (drag indicator function) with date and time
Event memory	Memory capacity, 1500 entries with date and time of occurrence
Operating logbook	Memory capacity, 500 entries with date and time of occurrence
Limit violations	Detection time ≥ 200 ms
Voltage dips in the measurement voltage	Detection time ≥ 20 ms; threshold adjustable via PC, default after reset 85% of nominal voltage (according to EN61000-4-30).

Device memory

Working,
Data & parameter memory

2 MB Flash

Program memory

512 kB Flash

Memory type

Ring buffer

Extreme values (max./min.)

The maximum values that have occurred since mains connection or manual extreme value deletion (drag indicator function) with date and time

Event memory

Memory capacity, 1500 entries with date and time of occurrence

Operating logbook

Memory capacity, 500 entries with date and time of occurrence

Limit violations

Detection time ≥ 200 ms

Voltage dips in the measurement voltage

Detection time ≥ 20 ms; threshold adjustable via PC, default after reset 85% of nominal voltage (according to EN61000-4-30).

Measuring principle
Scanning	64 measured values per period
A/D converter	12 bit
Measurement of U and I	Simultaneous measured value acquisition for U and I measurement
Update speed (complete measurement cycle)	~ 330 ms
Calculation of harmonics	FFT with 64 points over one period
Frequency measurement	Reference: Voltage measurement between phase Lx – N / Ly); correct frequency measurement through grid tracking

Measuring principle

Scanning

64 measured values per period

A/D converter

12 bit

Measurement of U and I

Simultaneous measured value acquisition for U and I measurement

Update speed (complete measurement cycle)

~ 330 ms

Calculation of harmonics

FFT with 64 points over one period

Frequency measurement

Reference: Voltage measurement between phase Lx – N / Ly); correct frequency measurement through grid tracking

Power supply
Power supply	US1: 100-240V ± 10% DC/50/60Hz
Power consumption	22VA

Power supply

US1: 100-240V ± 10% DC/50/60Hz

Power consumption

22VA

Hardware inputs
Measurement input for voltage	Terminals 10 and 13: 57.75V… 500V…600V AC, designed for max. 500V AC nominal voltage, over 500V AC PH-PH up to 30.00KV AC PH-PH with voltage transformer attachment
	Input impedance: Min. 2.5 MOhm
	Measuring range: programmable
Temperature input	Terminals 51 and 52: Connection for PT1000 sensor
	Measuring range: -20°C to 100°C ± 2°C
Measuring input for current	Terminal 20 and 21: 0.05A…5A…6A AC (with x/5A converter), designed for max. 5A AC rated current 0.01A…1A…1.2A AC (with x/1A converter), designed for max. 1A AC rated current
	Power consumption: 0.3 VA per input at 6 A, 0.05 VA per input at 1.2 A
	Measuring range: programmable

Hardware inputs

Measurement input for voltage

Terminals 10 and 13: 57.75V… 500V…600V AC, designed for max. 500V AC nominal voltage, over 500V AC PH-PH up to 30.00KV AC PH-PH with voltage transformer attachment

Input impedance: Min. 2.5 MOhm

Measuring range: programmable

Temperature input

Terminals 51 and 52: Connection for PT1000 sensor

Measuring range: -20°C to 100°C ± 2°C

Measuring input for current

Terminal 20 and 21:

0.05A…5A…6A AC (with x/5A converter), designed for max. 5A AC rated current
0.01A…1A…1.2A AC (with x/1A converter), designed for max. 1A AC rated current

Power consumption:

0.3 VA per input at 6 A,
0.05 VA per input at 1.2 A

Measuring range: programmable

Hardware outputsa
Relay outputs	Switching stages: 5 on the basic device, 1 of which can be configured as a fan
	Switching capacity: 250V (AC) / 2A per relay
Fault signal relay	Switching capacity: 250V (AC) / 2A potential-free, configurable as fan or switching stage
Interface	Serial interface: RS-485
	Bus protocol: KBR-EnergieBus / Modbus
	Transmission speed: 38400 baud, with Modbus selectable 4800, 9600, 19200 baud
	Addressing: Addressable up to addr.9999 for KBR eBus, scan mode can be activated on the device
	Bus addresses for Modbus 1 to 247 can be set on the device
Display and configuration interface	Serial interface: RS-485 (RJ12)
Module bus interface	Serial interface: RS 485 (RJ12) for pre-assembled KBR system cable (modular cable 6-pin, unshielded) max. Length 30 m with suitable installation

Hardware outputsa

Relay outputs

Switching stages: 5 on the basic device, 1 of which can be configured as a fan

Switching capacity: 250V (AC) / 2A per relay

Fault signal relay

Switching capacity: 250V (AC) / 2A potential-free, configurable as fan or switching stage

Interface

Serial interface: RS-485

Bus protocol: KBR-EnergieBus / Modbus

Transmission speed: 38400 baud, with Modbus selectable 4800, 9600, 19200 baud

Addressing: Addressable up to addr.9999 for KBR eBus, scan mode can be activated on the device

Bus addresses for Modbus 1 to 247 can be set on the device

Display and configuration interface

Serial interface: RS-485 (RJ12)

Module bus interface

Serial interface: RS 485 (RJ12) for pre-assembled KBR system cable (modular cable 6-pin, unshielded) max. Length 30 m with suitable installation

Electrical connection
Connecting elements	Plug-in terminals
Permissible cross-section of the connecting cables	2.5 ^mm2 (bus connection and temperature sensor 1.⁵ mm2)
Measuring voltage inputs	Fuse protection: max. 1 A slow or max. C2-Automat,max. 1 A slow or max. C2-Automatic, additionally mains disconnecting device approved according to UL/IE
Measuring current input	Fuse protection: NONE!!! – Current transformer terminals k and l before the Always short-circuit when opening the circuit!
Control voltage input	Fuse protection: max. 1 A slow or max. C2-Automat,max. 1 A slow or max. C2-Automatic, additionally mains disconnecting device approved according to UL/IE
Relay output	Fuse protection: max. 2A medium yields
BUS connection	Connection material: For correct operation, only use shielded and twisted-pair cables; e.g. J-Y(St)Y EIB 2x2x0.8
Converter connection	Wiring: see connection diagram multicomp (123 KB)
BUS connection	Connections for BUS – connection via RS-485 Terminal 90 (⊥) →Pin ⊥→ Terminal 91 (A) →Pin A → Terminal 92 (B) →Pin B →

Electrical connection

Connecting elements

Plug-in terminals

Permissible cross-section of the connecting cables

2.5 ^mm2 (bus connection and temperature sensor 1.⁵ mm2)

Measuring voltage inputs

Fuse protection: max. 1 A slow or max. C2-Automat,max. 1 A slow or max. C2-Automatic, additionally mains disconnecting device approved according to UL/IE

Measuring current input

Fuse protection: NONE!!! – Current transformer terminals k and l before the
Always short-circuit when opening the circuit!

Control voltage input

Fuse protection: max. 1 A slow or max. C2-Automat,max. 1 A slow or max. C2-Automatic, additionally mains disconnecting device approved according to UL/IE

Relay output

Fuse protection: max. 2A medium yields

BUS connection

Connection material: For correct operation, only use shielded and twisted-pair cables; e.g. J-Y(St)Y EIB 2x2x0.8

Converter connection

Wiring: see connection diagram multicomp (123 KB)

BUS connection

Connections for BUS – connection via RS-485
Terminal 90 (⊥) →Pin ⊥→
Terminal 91 (A) →Pin A →
Terminal 92 (B) →Pin B →

Mechanical data
DIN rail device
Housing dimensions	90 x 106 x 61 mm (H x W x D)
Mounting type	Wall mounting on standard rail 7.5 mm deep, in accordance with DIN EN 50022)
Weight	approx. 650 g

Mechanical data

DIN rail device

Housing dimensions

90 x 106 x 61 mm (H x W x D)

Mounting type

Wall mounting on standard rail 7.5 mm deep, in accordance with DIN EN 50022)

Weight

approx. 650 g

Ambient conditions / Electrical safety
Ambient conditions	Standards: DIN EN 60721-3-3/A2: 1997-07; 3K5+3Z11; (IEC721-3-3; 3K5+3Z11)
	Operating temperature: K55 (-5°C …. +55°C)
	Humidity: 5 % … 95 %, non-condensing
	Storage temperature: K55 (-25°C …. +70°C)
	Operating altitude: 0….2000m above sea level
Electrical safety	Standards: DIN EN 61010-1: 2011-07
	Protection class: I
	Overvoltage category: CAT III
	Rated impulse voltage: 4 kV
Protection class	Standards: IP20 according to DIN EN 60529: 2014-09
EMC	Standards: DIN EN 61000-6-2:2006-03 + Corrigendum 1:2011-03 DIN EN 61000-6-3:2011-09 + Corrigendum 1:2012-11 DIN EN 61326-1:2013-0

Ambient conditions / Electrical safety

Ambient conditions

Standards: DIN EN 60721-3-3/A2: 1997-07; 3K5+3Z11; (IEC721-3-3; 3K5+3Z11)

Operating temperature: K55 (-5°C …. +55°C)

Humidity: 5 % … 95 %, non-condensing

Storage temperature: K55 (-25°C …. +70°C)

Operating altitude: 0….2000m above sea level

Electrical safety

Standards: DIN EN 61010-1: 2011-07

Protection class: I

Overvoltage category: CAT III

Rated impulse voltage: 4 kV

Protection class

Standards: IP20 according to DIN EN 60529: 2014-09

EMC

Standards:
DIN EN 61000-6-2:2006-03 + Corrigendum 1:2011-03
DIN EN 61000-6-3:2011-09 + Corrigendum 1:2012-11
DIN EN 61326-1:2013-0

multicomp D6

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