ROOTECH - Energy Solution for Human and Nature

Overview

Deals with Management Need for Consumption Power of Motor and Improves MCC Space Efficiency

Precision Measurement to meet IEC 61557-12 Class 0.5

Blocks the Spread of Accident by Ground Current through Accurate Measurement of Ground Current

Provides Two Type Modules(Protection Module/Protection&Control Module) for Selection According to Purpose

Diversification of Rated Current of Motor-Unit Protection[Control] Module for MCC Space Efficiency and Precision Measurement

Providing power/energy based on inverter output voltage measurement of inverter-driving motor-unit

Provides Convenience for Maintenance

HMI Module that Supports Device Redundancy

Excellent Field Analysis through Integrated HMI Module with Color Touch TFT LCD

LOP Control Module and LOP Control Gateway for Communication with LOP(Local Operating Panel)

Communication Redundancy with Improved Communication Reliability between Devices

Supports Device Redundancy for the Field that Requires High Reliability

Provides Setup Manager for All Setting and Commissioning through Communication

Provides Control Logic Editor to Provide Control Flexibility

Possible to Implement MCC Level Control Logic

Measuring the output voltage of Inverter-unit

Connection with Accura 2750P[C] (RS-485 communication)

Connection with Motor-Unit HMI Module Accura 2750DCI (RS-485 Communication)

Connection with Inverter (RS-485 communication)

Digital input/output supported

Download Catalog

AccuraSM Program Download

Accura 2700/2750

Accura 2700M Accura 2700D Accura 2750P[C] Accura 2750INV/VOL

Accura 2700/2750

Accura 2750INV/VOL Inverter-Unit Voltage Measurement[Control] Module
The output voltage signal of the inverter is required to measure the inverter's output power in the motor-unit driven by the inverter. Accura 2750INV/VOL module processes the inverter output voltage with the Low Pass Filter(LPF) to generate voltage data and transmits it to Accura 2750PC module via communication. It also supports a separate RS-485 communication port to communicate with the inverter supporting RS-485 communication. By providing additional digital I/O channels, Accura 2750INV module allows for an easy-to-use, hardwired interface in connection with the inverter.
Output Voltage Measurement of the Inverter-unit
Provides voltage data by processing the inverter output voltage with the Low Pass Filter(LPF)
Frequency measurement range	5 - 180 Hz
Cut-off frequency of LPF	188 Hz
Connection with Accura 2750P[C]
Transmits the voltage data of the inverter-unit to Accura 2750P[C] via internal communication
Internal dedicated protocol	1 port (A2750PC)
Connector type	RJ45 connector
Communication cable	Ethernet cable Cat.5e FTP(F/UTP)
Communication cable length	Maximum 3.5m
Connection with Motor-Unit HMI Module Accura 2750DCI
Internal dedicated protocol	1 port (DISPLAY A2750DCI)
Connector type	RJ45 connector
Communication cable	Ethernet cable Cat.5e FTP(F/UTP)
Communication cable length	Maximum 3.5m
Connection with Inverter (RS-485 communication)
Inverter status reception and inverter control by RS-485 communication
Modbus RTU protocol	1 port (Ta, Tb, SG)
Connector type	Screw pluggable
Communication cable	UL2919 RS-485 1P[2P] 24AWG
Digital Input/Output
Digital input	Accura 2750INV	5channels (External power input)
Digital output	Accura 2750INV	Form-A 9 channels
	Accura 2750VOL	Form-C 1 channel
Control Power Supply
Rated voltage(Us)	110 - 240V AC 50/60Hz, 110 - 300V DC
Operating voltage range	0.8 x Us - 1.1 x Us

Accura 2750INV/VOL Inverter-Unit Voltage Measurement[Control] Module

Power supply¹
Connector name	L+, N-, G(Earth Ground)
Connector type	Screw-type terminal (Pluggable)
Wire	2.1 - 3.5 mm² (14 - 12 AWG)
Rating voltage(Us)	110 - 240V AC 50/60Hz, 110 - 300V DC
Operating voltage range	0.8 x Us - 1.1 x Us
Rated power consumption	Maximum 13VA(AC 220V, 25°C) @Super Capacitor charging and full digital output operating
Rating insulation voltage(Ui)	300V (at pollution degree 3)
Rating impulse withstand voltage(Uimp)	4kV
Inrush current	Peak 22A,duration less than 1msec (AC 220V)
	Peak 12A,duration less than 200usec (DC 110V)
External input fuse capacity	2A, 500V
Accepted instantaneous power outage time	Minimum 10 sec (Built-in super capacitor)
Voltage Input
Connector name	V1, V2, V3, VN²
Connector type	Screw-type terminal(Pluggable)
Wire specifications	0.21 - 3.5 mm² (24 - 12AWG)
Measuring range	AC 5 - 300V direct L-N (Line-to-Neutral)
	AC 8 - 520V direct L-L (Line-to-Line)
Minimum measured value	AC 5V direct L-N (Line-to-Neutral)
Rating usage voltage	520V
Rating insulation voltage(Ui)	520V (Overvoltage category III, pollution degree 2)
Rating impulse voltage(Uimp)	8kV
Measurement frequency range	5 - 180 Hz
Cut-off frequency of LPF	6MΩ (L-N: V1/V2/V3?Vn)
Impedance	0.01VA/Phase @220V
Digital Input¹
Number of channels/forms	5 channels (external power supply)
Connector type	Screw-type terminal(pluggable)
Wire specifications	0.21 - 3.5 mm² (24 - 12AWG)
Insulation method	Uninsulated within a group
	Group 3: channel 11-15 (3DI11 ? 3DI15) 3DIG common
Input impedance	220 kΩ
Input form	Connection of external power supply
Maximum input voltage	AC/DC 240V
Low voltage range	AC 0 - 70V, DC 0 - 70V
High voltage range	AC 85 - 240V, DC 85 - 240V
Minimum pulse width	20 msec
Digital Output
Number of channels/ output form	9 channel(Form-A), channel 5 - channels 13			@ Accura 2750INV
	1 channel (Form-C), channel 5			@ Accura 2750VOL
Connector type	Screw-type terminal(Pluggable)
Wire specifications	0.21 - 3.5 mm² (24 - 12AWG)
Insulation	AC 2,000V/1min
Output rating	Form-A: AC-15 5A/250Vac, DC-13 5A/30Vdc(DO1 – DO3)
	Form-C: AC-15 3A/250Vac, DC-13 3A/30Vdc (DO4)
RS-485 Communication
Port name	Ta(TRX+), Tb(TRX-), SG(Shield-Ground)
Connector	Screw-type terminal(Pluggable)
Protocol	1200 - 115200 bps³ , Modbus RTU
Communication cable	UL2919 RS-485 1P[2P] 24AWG
Communication cable length	Maximum 1219m(4000ft)
LED
Front LED	POWER	Green	Turned On when control power operates normally
	DEVICE	Green	Blink, when the device operates normally(can be set to On)
Connection with Module
Communication with Accura 2750PC the motor protection & control module	Internal dedicated protocol		1 port(A2750PC)
	Connector type		RJ45 connector
	Communication cable		Ethernet cable Cat.5e FTP(F/UTP)³
	Communication cable length		Maximum 3.5m
Communication with Accura 2750DCI the HMI module	Internal dedicated protocol		1 port(A2750DCI)
	Connector type		RJ45 connector
	Communication cable		Ethernet cable Cat.5e FTP(F/UTP)³
	Communication cable length		Maximum 3.5m
Measurement Specification
Voltage wiring method	3-phase 3-wire
Measurement data	Inverter output voltage wave
Frequency measurement	5 - 180 Hz
Number of samples per signal cycle	64samples /Cycle
Voltage measurement method	True RMS measure(Low-pass filter cut-off frequency :188 Hz)
Voltage	Accuracy	IEC 61557-12 Class 0.5
	Measuring range	Line-to-line voltage	AC 8 - 520V	AC 110 - 520V (Accuracy guaranteed)
		Line-to-neutral voltage	AC 5 - 300V	AC 65 - 300V (Accuracy guaranteed)
	Minimum measurement	Line-to-neutral voltage	AC 5V
	Measurement information	Line-to-line voltage (each phase / average, Maximum of each average/average)
		Line-to-neutral voltage (each phase/average)
		Fundamental line-to-line voltage (each phase / average)
		Unbalance(Negative, Positive, Maximum)

1. It is not available in Accura 2750VOL module.
2. The VN port is connected to the V3 port.
3. Up to 16 modules can be connected per bus at 115200 bps.
4.FTP(F/UTP): Foiled Shield Twisted Pair

General Specifications

Certification and Standard
UL	UL61010-1, UL60947-4-1
CE	EN61326-1, EN55011
KC	KN22, KN24
Environment
Operating temperature	-20 to 65℃ (-4℉ to 149℉)
Storage temperature	-40 to 85℃ (-40℉ to 185℉)
Humidity	5% to 95% Non-Condensing
Dust Proof and Water Proof
Accura 2750INV/VOL	IP20		IEC 60529
Vibration
Accura 2700M, Accura 2700D, Accura 2750P[C], Accura 2750INV/VOL, Accura 2750D[C/CI], Accura 2750LCG, Accura 2750LC, Unit-Socket, Bridge-Socket	10-150Hz, 20m/s²(Fixed panel installation)	IEC 60068-2-6
Shock
All modules	15 g / 11 ms		IEC 60068-2-27
Heat Resistance
All product cases	V0		UL94
	960°C		IEC 60695-2-11
Membrane Accura 2750D[C/CI] LCD Window	V2		UL94
	650 °C		IEC 60695-2-11
EMC(Immunity)	IEC 60947-5-1	ROOTECH	IEC 60947-1
Electrostatic Discharge	8kV / air	12kV / air	IEC 61000-4-2
	4kV / contact	12kV / contact
Radiated Radio-Frequency Electromagnetic Field	10V/m	10V/m	IEC 61000-4-3
Electrical Fast Transient/Burst	2kV/5kHz(power)	7kV/5kHz(power)	IEC 61000-4-4
	1kV/5kHz(signal)	7kV/5kHz(signal)
Surge	2kV(line-earth)	4kV(line-earth)	IEC 61000-4-5
	1kV(line-line)	2kV(line-line)
Conducted Disturbances Induced by Radio Frequency Field	10V	10V	IEC 61000-4-6
Power Frequency Magnetic Field	30A/m	30A/m	IEC 61000-4-8
Voltage Dips	0%, 0.5cycle	0%, more than 5sec	IEC 61000-4-11
	40%, 10/12 cycles
	70%, 25/30 cycles
	80%, 250/300 cycles
Voltage Interruption(Class C)	0%, 250/300cycles	0%, 5sec more	IEC 61000-4-11
EMC Emission	IEC 60947-5-1	ROOTECH	IEC 60947-1
Emission	CISPR 11 Group1 Class A	CISPR 11 Group1 Class A	CISPR 11
Weight
Accura 2750INV	385 g
Accura 2750VOL	175 g
Size[mm]
Accura 2750INV	84.8W x 91.0H x 105.0D
Accura 2750VOL	46.8W x 91.0H x 90.0D