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Accura 2750LC[I] LOP Control Module
Accura 2750LC[I] is the digital control module for the LOP[Local Operating Panel] that substitutes the existing LOPs consisting of the push button, lamp, selection switch, and current meter. Accura 2750LC performs motor control commands at the field and displays the operational status and measurement data on the motor via communication with Accura 2700M through Accura 2750LCG. Along with the functions of Accura 2750LC, Accura 2750LCI provides the INVERTER/BYPASS buttons on the front for the operation of the inverter. In the existing LOPs, once the RUN/STOP command is executed by pressing the push button, it is sent to Accura 2750PC through the signal cable connected with the contact point of the push button and the digital input of the corresponding Accura 2750PC. However, when pressing the RUN/STOP button on Accura 2750LC[I], the control command is sent to Accura 2700M through Accura 2750LCG. Accura 2700M performs the RUN/STOP command by sending the command to Accura 2750PC of the corresponding motor-unit through communication. This communication method is beneficial since a single communication cable replaces multiple signal cables connecting the MCC to the LOP at the existing system. It allows users to easily identify the disconnection and short-circuit state of the cable. Accura 2750LCG supports communication redundancy through ring connection using 2 communication ports on Accura 2750LC[I].
Connection with Accura 2750LCG
Accura 2750LCG performs the gateway function between Accura 2700M and Accura 2750LC[I].
The command of the corresponding motor-unit at the LOP is transmitted to Accura 2750PC through Accura 2750LCG and Accura 2700M.
Current, power, and operational status data on the corresponding motor-unit are transmitted from Accura 2750PC toAccura 2750LC[I] through Accura 2700M and Accura 2750LCG
Internal dedicated protocol		2 ports with the same functions(LC/LM-A, LC/LM-B)
2 ports: ring connection		Communication redundancy
Connector type		RJ45 connector
Communication cable		Ethernet cable Cat 5e FTP, STP, SFTP
Communication cable total length		Maximum 800m for each network
Communication cable power supply		24V DC supplied from Accura 2750LCG
Maximum number of connected Accura 2750LC[I] modules		20 per group(ring connection)
		(POW module is additionally connected when the number of connected Accura 2750LC[I] modules exceeds 10)
Motor Control Function
Transmits the motor start/stop control command and monitors the operational status of the motor at the field
Optional Module: LC Power Module (Accura 2750LC POW)
POW module can be added to the rear of Accura 2750LC[I] module.
LC power module (Accura 2750LC POW)	Rating voltage(Us)	110-240V AC 50/60Hz, 110-300V DC
	Operating voltage range	0.8 x Us-1.1 x Us
	Rating output voltage/power	24V DC / 20W
Control Power Supply
Control power of Accura 2750LC[I] is basically provided from Accura 2750LCG through the communication cable.
Power supply through		Accura 2750LCG: 24V DCDC(Can supply power to 10 Accura 2750LC modules per group)
Additional power supply through LC power module		Accura 2750LC POW module: 24V DCDC(Can supply power to 10 Accura 2750LC[I] modules)

Accura 2750LC[I] LOP Control Module

Power supply
Control power supply input	24V DC power supplied from Accura 2750LCG through the communication cable (Accura 2750LCG can supply power to 10 Accura 2750LC[I] modules per group)¹
Rated power consumption	Maximum 1W(DC 24V, 25°C)
function
Starts and stops the motor
Displays current and power values for each phase
Inhibits the operation of the motor when checking it
Displays event data and resets events
Connection with the Module
Communication with Accura 2750LCG	Internal dedicated protocol	2 ports with the same functions(LC/LM-A, LC/LM-B)
	2 ports: ring connection	Support for communication redundancy
	Connector type	RJ45 connector
	Communication cable	Ethernet cable Cat 5e FTP, STP, SFTP⁴
	Total communication cable length	Maximum 800m per group
	Power supply through the cable	24V DC supplied from Accura 2750LCG¹
	Number of Accura 2750LC[I] modules	Maximum 20 per group(ring connection)
FND
FND	10.0mm (0.39") digit height seven-segment display(3-row 4-digit)
LED
Module operating status LED	EVENT	Orange	Turned On when a Caution event occurs(can be set to blink)
	COMM	Green	Blinks when Accura 2700M communicates with Accura 2750LC[I] (can be set to On)
	ALARM	Orange	Turned On when an Alarm event occurs(can be set to blink)
	FAULT	Red	Turned On when a Fault event occurs(can be set to blink)
FND data LED	A	Green	Turned On when the FND data indicate current values
	kW	Green	Turned On when the FND data indicate power values
Motor operating status LED	RUN1	Red/Green/Orange	Turned On when the motor operates in normal direction or speed 1 mode
	RUN2	Red/Green/Orange	Turned On when the motor operates in reverse direction or speed 2 mode
	STOP	Red/Green/Orange	Turned On when the motor is stopped
	TEST	Green	Turned On when the motor is in Test mode
	RESET	Red/Orange	Turned On when a Fault event occurs
Selected control mode LED (Accura 2750LC only)	LO	Green	Turned On when Local is selected as LOP control mode
	RE	Orange	Turned On when Remote is selected as LOP control mode
Inverter operation mode LED (Accura 2750LCI only)	INV	Green	Turned On when inverter mode is selected as motor-unit operation mode
	BPS	Orange	Turned On bypass mode is selected as motor-unit operation mode
Safety LOCK KEY state LED	UNLOCK	Green	Turned On when the Safety LOCK KEY is unlocked²
	LOCK	Red	Turned On when the Safety LOCK KEY is locked (safety for on-site inspection, etc)
Button
Buttons for changing directions and performing special functions	Left(<)/ESC	Moves to the left and performs the ESC function
	Up(^)/SETUP	Moves upwards and enters SETUP mode
	Down(∨)/EVENT	Moves downwards and enters EVENT mode
	Right(>)/ENTER	Moves to the right and performs the ENTER function
Test/Reset multi-function button	TEST	Checks the connected Accura 2750P[C] module (It operates when no event occurs)
	RESET	Resets events on the motor-unit (when an event occurs)
Motor control button	RUN1	Run command in forward direction and speed 1 mode
	RUN2	Run command in reverse direction and speed 2 mode
	STOP	Stop command
Control mode button (Accura 2750LC only)	LOCAL	Local is selected as LOP control mode
	REMOTE	Local is selected as LOP control mode
Inverter operation mode (Accura 2750LCI Only)	INVERTER	Motor-unit operated by the inverter
	BYPASS	Motor-unit operated by the inverter
Safety LOCK KEY	Unlock	Normal operation state³
	Lock	Motor start inhibit state
Temperature Measurement
Temperature measurement range	0 to 100°C
Accuracy	±2% Full Scale (Full Scale: 100°C)
LC POW Module: Optional module which can be additionally connected to the rear of Accura 2750LC[I]
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 – 240V AC 50/60Hz, 110 – 300V DC
Operating voltage range	0.8 x Us – 1.1 x Us
Rating output voltage/power	24V DC / 20W
Rating insulation voltage(Ui)	300V (at pollution degree 2)
Rating impulse withstand voltage(Uimp)	4kV
Inrush current	Peak 22A, under duration 1.5msec(AC 220V)
	Peak 11A, under duration 300usec(DC 110V)
External input fuse capacity	2A, 500V
Accepted instantaneous power outage time	Typ. 50ms

1. If the number of Accura 2750LC[I] modules exceeds 10, an Accura 2750LC POW module should be additionally connected.
2. When the safety lock key status is changed from Locked to Unlocked, if the safety lock status of other modules is Locked,
the red LED (LOCK) is turned on and the green LED (UNLOCK) blinks to indicate that it is in the Locked state.
3. It is possible to start the motor only when the locked status of other modules is released.
4. FTP: Foiled Shield Twisted Pair, STP: Braided Shield Twisted Pair, SFTP: Braided 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 2750LC[I]	IP54		IEC 60529
Vibration
Accura 2700M, Accura 2700D, Accura 2750P[C], Accura 2750D[C/CI], Accura 2750LCG, Accura 2750LC[I], 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] 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 5 sec	IEC 61000-4-11
	40%, 10/12 cycles
	70%, 25/30 cycles
	80%, 250/300 cycles
Voltage Interruption(Class C)	0%, 250/300cycles	0%, more than 5 sec	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 2750LC	340 g
Accura 2750LCI	340 g
Accura 2750LC Power Module	170 g
Size[mm]
Accura 2750LC	129.6W x 156.5H x 57.0D
Accura 2750LCI	129.6W x 156.5H x 57.0D
Accura 2750LC Power Module	86.2W x 91.0H x 38.0D