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

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Accura 2700/2750

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

Accura 2700/2750

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	3 m (It comes with Accura 2750INV/VOL.)
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	2 m (It comes with Accura 2750DCI.)
Connection with Inverter (RS-485 communication)
Receives inverter status data and controls the inverter via 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	5 channels (external excitation)
Digital output	Accura 2750INV	9 Form-A channels
	Accura 2750VOL	1 Form-C channel
Power Supply
Rated voltage(Us)	110 - 240 V AC 50/60 Hz, 110 - 300 V 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 specifications	2.1 - 3.5 mm² (14 - 12 AWG)
Rating voltage(Us)	110 - 240 V AC 50/60 Hz, 110 - 300 V DC
Operating voltage range	0.8 x Us - 1.1 x Us
Rated power consumption	Maximum 13 VA(AC 220 V, 25°C) @Super Capacitor charging and full digital output operating
Rating insulation voltage(Ui)	300 V (at pollution degree 3)
Rating impulse withstand voltage(Uimp)	4 kV
Inrush current	Peak 31 A, duration less than 1 msec (AC 220 V)
	Peak 12 A, duration less than 200 usec (DC 110 V)
External input fuse capacity	2 A, 500 V
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 - 300 V direct L-N (Line-to-Neutral)
	AC 8 - 520 V direct L-L (Line-to-Line)
Minimum measured value	AC 5 V direct L-N (Line-to-Neutral)
Rating usage voltage	520 V
Rating insulation voltage(Ui)	520 V (Overvoltage category III, pollution degree 2)
Rating impulse voltage(Uimp)	8 kV
Measurement frequency range	5 - 180 Hz
Impedance	6 MΩ (L-N: V1/V2/V3?Vn)
Burden	0.01 VA/Phase @220 V
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) 3DI_G common
Input impedance	405 kΩ
Input type	Connection of external power supply
Maximum input voltage	AC 240 V
Low voltage range	AC 0 – 140 V
High voltage range	AC 165 – 240 V
Minimum pulse width	50 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 2,000 V/ for 1min
Output rating	Form-A: AC-15 5 A/250 Vac, DC-13 5 A/30 Vdc(DO1 – DO3)
	Form-C: AC-15 3 A/250 Vac, DC-13 3 A/30 Vdc (DO4)
RS-485 Communication
Port name	Ta(TRX+), Tb(TRX-), SG(Shield-Ground)
Connector	Screw-type terminal(pluggable)
Protocol	1,200 - 115,200 bps³ , Modbus RTU
Communication cable	UL 2919 RS-485 1P[2P] 24AWG
Communication cable length	Maximum 1,219 m(4,000 ft)
LED
Front LED	POWER	Green	Turned On when control power operates normally
	DEVICE	Green	Blink, when the device operates normally(can be set to be turned 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		3 m
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		2 m
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	64 samples /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 9 - 520 V	AC 110 - 520 V (Accuracy guaranteed)
		Line-to-neutral voltage	AC 5 - 300 V	AC 65 - 300 V (Accuracy guaranteed)
	Minimum measurement	Line-to-neutral voltage	AC 5 V
	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. At 115,200 bps, a master can communicate with up to 16 slave devices, and the maximum distance between the master and the slave is 600 m.
4.FTP(F/UTP): Foiled Shield Twisted Pair

General Specifications

Certification and Standard
UL	UL 61010-1 3rd edition, UL 60947-4-1
CE	EN 55011:2009 +A1:2010, EN 61326-1:2013, EN 61000-3-2:2014, EN 61000-3-3:2013
KC	KN 32, KN 35
CCC	GB/T 14048.4-2010
Environmental Condition
Operating temperature	-20 — 65 °C (-4 — 149 ℉)
Storage temperature	-40 — 85 °C (-40 — 185 ℉)
Operating humidity	5 — 95 % (non-condensing)
Operating altitude	Up to 2,000 m
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 - 150 Hz, 20 m/s² (Panel mounting)	IEC 60068-2-6
Shock
All modules	15 g / 11 ms	IEC 60068-2-27
Heat Resistance
All product cases	V0	UL 94
	960°C	IEC 60695-2-11
Membrane Accura 2750D[C/CI] LCD Window	V2	UL 94
	650 °C	IEC 60695-2-11
EMC Immunity	IEC 61326-1, IEC 6100-3-2, IEC 61000-3-3
Electrostatic discharge immunity	8 kV / air	IEC 61000-4-2
	4kV / contact
Radiated radio-frequency electromagnetic field immunity	10 V/m	IEC 61000-4-3
Electrical Fast Transient/Burst	2 kV/5 kHz(power)	IEC 61000-4-4
	1 kV/5 kHz(signal)
Surge immunity	2 kV(line-earth)	IEC 61000-4-5
	1 kV(line-line)
Immunity to conducted disturbances induced by radio-frequency field	10 V	IEC 61000-4-6
Power frequency magnetic field immunity	30 A/m	IEC 61000-4-8
Voltage dips, short interruptions and voltage variations immunity	0 %, 1 cycle	IEC 61000-4-11
	40 %, 10/12 cycles
	70 %, 25/30 cycles
	80 %, 250/300 cycles¹
EMC Emission	EN 55011
Conducted emission and radiated emission	Class A Group
Item	Weight	Dimensions
Accura 2750INV	385 g	84.8W x 91.0H x 105.0D
Accura 2750VOL	175 g	46.8W x 91.0H x 90.0D

1. Short interruptions