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Accura 2500/2550

Accura 2750IRM Insulation Resistance Measurement Module

Smart Motor Management System / Motor [Inverter]-Unit Protection [Control] HMI Module

Accura 2750D/DC/DCI display data on the measurement, protection, and status of motor/inverter units and
have buttons for motor and inverter operation.

Accura 2750IRM

Insulation Resistance Measurement Module

Accura 2750D/DC/DCI display data on the measurement, protection, and status of motor/inverter units and have buttons for motor and inverter operation.

Overview

Features

Specifications

FAQ

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Overview
Features
Specifications
FAQ
Download

Overview

Preventive Maintenance through Motor Insulation Resistance Measurement

Temperature Correction for Measured Insulation Resistance

PI and DAR Values for Insulation Assessment

Safe Insulation Resistance Testing

Download Catalog

AccuraSM Program Download

Accura 2700/2750

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

Accura 2700/2750

Accura 2750D[C/CI] Motor-Unit Protection[Control]HMI Module

Test Voltage
Port name	V, G
Wire specification	0.21 — 3.5 mm² (24 — 12 AWG)
Applied test voltage	DC 500V / 1000V (selectable)
Insulation Resistance Measurement
Measuring range	1 — 1500 MΩ	DC 500 V test voltage
	1 — 3000 MΩ	DC 1000 V test voltage
Accuracy / Guaranteed acuracy range	±10 % Reading /1 — 500 MΩ	DC 500 V test voltage
	±10 % Reading /1 — 1000 MΩ	DC 1000 V test voltage
Digital Input
Number of channels	1 (internal power supply)
Port name	3DI11, 3DIG
Wire specification	0.21 — 3.5 mm² (24 — 12 AWG)
Digital Output
Number of channels	2 (Form-A)
Port name	DO5, DO5G / DO6, DO6G
Wire specification	1.5 — 3.5 mm² (16 — 12 AWG)
Maximum open-contact voltage	1,000 V
Insulation	AC 2,000 V for 1 minute, with isolation between channels
Output rating	AC-15 5 A/250 Vac, DC-13 5 A/30 Vdc
Communication Port	Used to Connect to Accura 2750PC
Connector type	RJ45 connector
Protocol	Proprietary protocol
Communication cable	Cat. 5e Ethernet cable, FTP(F/UTP)¹
Communication cable length	Maximum 3 m
Communication Port	Used to Connect to Accura 2750DC
Connector type	RJ45 connector
Protocol	Proprietary protocol
Communication cable	Cat. 5e Ethernet cable, FTP(F/UTP)¹
Communication cable length	1 m
LED Display
POWER (Green)	Turns on when the power supply to the module is normal.
DEVICE (Green)	Blinks during normal module operation. This LED can be configured to remain on.

1. FTP(F/UTP): Foiled Shielded Twisted Pairs

General


Functions
Insulation Resistance Measurement¹
Measures motor insulation resistance by applying a DC test voltage of 500 V or 1000 V.
Corrects the measured insulation resistance to the reference temperature.		Reference temperature: 40 ℃ (configurable)
Provides IR, PI, and DAR values for insulation diagnosis.
Supports safe insulation resistance testing through an interlock function and automatic discharge.
Digital Input
Provides an interlock function²by monitoring the open/closed status of the MC (magnetic contactor).
Digital Output
Uses DO Channel 5 to issue an open command to the MC (magnetic contactor).
Uses DO Channel 6 to output an insulation resistance alarm.

Certification and Standard
KC	KS C 9811, KS C 9610-4-2, KS C 9610-4-3, KS C 9610-4-4,KS C 9610-4-5, KS C 9610-4-6
Environmental Condition
Operating temperature	-20 - 65°C (-4 - 149°F)
Storage temperature	-40 - 85°C (-40 - 185°F)
Operating humidity	5 - 95 % (non-condensing)
Operating altitude	Up to 2,000 m
Weight
Accura 2750IRM	200 g
Dimensions
Accura 2750IRM	46.8W x 91.0H x 90.0D