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Unit-Socket

Function
Connection of communication cables per unit	The Unit-Socket is used to connect Accura 2750P[C] modules, enabling easy separation of cables when the unit with Accura 2750P[C] module is withdrawn. This does not affect communication of other units.
	Removes T-stub connections through the input and output structure of communication cables
Communication
Port	Number of ports	3 ports(RJ45A, A2750, RJ45B) (The RJ45A and RJ45B ports have the same functions)
	Connector type	RJ45 connector
Port RJ45A, RJ45B	Used to connect with Accura 2700M or an adjacent Unit-socket
	Supports communication redundancy through ring connection
	Communication cable length between Unit-Sockets	Average 3m¹
	Total communication cable length	Max.120 m (30 modules in a ring topology with unit-sockets)
Port A2750	Used to connect with Accura 2750P[C]
	Communication cable length	Max. 3 m

1. If the total cable length in a ring topology does not exceed 120 m, the maximum allowable cable length between units is 20 m.

Bridge-Socket

Function
Support for redundancy	2 Accura 2700M modules share the communication network of Accura 2750P[C] for redundancy
	2 Accura 2750LCG modules share the communication network of 2750LC[I] for redundancy
Communication
Port	Number of ports	3 ports(CH_A, COM, CH_B) (CH_A/CH_B ports have the same functions )
	Connector type	RJ45 Connector
Accura 2750P[C] Network Sharing
CH_A, CH_B Port	Used to connect Accura 2700M modules
	Communication cable length	3m¹
COM Port	Used to connect with the Unit-Socket
	Communication cable length	3m¹
Accura 2750LC[I] Network Sharing
CH_A, CH_B Port	Used to connect Accura 2750LCG modules
	Communication cable length	3m²
COM Port	Used to connect with Accura 2750LC[I] module
	Total communication cable length	Maximum 800m per group(20 Accura 2750LC[I] modules in ring connection)

1. If the total cable length in a ring topology does not exceed 120 m, the maximum allowable cable length between units is 20 m.
2. If the total cable length in a ring topology does not exceed 800 m, the maximum allowable cable length between units is 20 m.

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 & Water Proof
Unit-Socket	IP20		IEC 60529
Bridge-Socket	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
Unit-Socket	52 g	33.8W x 83.4H x 28.0D
Bridge-Socket	52 g	33.8W x 83.4H x 28.0D

1. Short interruptions

Unit-Socket
One Accura 2700M module and multiple Accura 2750P[C] modules are connected through communication. The Category 5e FTP, STP, or SFTP Ethernet cable is used for high reliability and convenience. Accura 2700M should be connected to Accura 2750P[C] modules of individual motor units with the daisy-chain method. However, the Unit-Socket is provided for convenience in installing communication cables and withdrawing motor units. A single Ethernet cable is also used to connect the Unit-Socket and Accura 2750P[C]. It makes it easy to disconnect the communication line when withdrawing motor units.
Easy Connection of Internal Communication Cables
As Accura 2750P[C] modules are connected through the Unit-Socket with communication cables, it is easy to disconnect the cables when withdrawing a motor unit with Accura 2750P[C]. Even if the cable is disconnected, it does not affect communication of other motor units
Removes T-stub connections through the input/output structure of the communication cable
Communication Port
Number of ports	3 ports (RJ45A, A2750, RJ45B) (RJ45A and RJ45B ports have the same functions.)
Connector type	RJ45 connector

Bridge-Socket
Through the Bridge-Socket, two Accura 2700M modules share the communication network of Accura 2750P[C]. It allows for the redundant wiring of Accura 2700M modules. Two Accura 2750LCG modules also share the communication network of Accura 2750LC[I] through the Bridge-Socket, allowing for the redundant wiring of Accura 2750LCG.
Redundancy
As two Accura 2700M modules share Accura 2750P[C]’s network, it allows for redundancy of Accura 2700M modules.
As two Accura 2750LCG modules share Accura 2750LC[I]’s network, it allows for redundancy of Accura 2750LCG modules.
Communication Port
Number of ports	3 ports (CH_A, COM, CH_B: CH_A and CH_B ports have the same functions.)
Connector type	RJ45 connector