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Mitsubishi Electric MELPRO COC4 -A02S1 User Manual

Mitsubishi Electric MELPRO COC4 -A02S1
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JEP0-IL9537
Numerical Relay
MELPRO
TM
-S Series
MODEL
CBV2 - A02S1
COC4 - A02S1
OPERATION MANUAL
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Mitsubishi Electric MELPRO COC4 -A02S1 Specifications

General IconGeneral
ManufacturerMitsubishi Electric
Coil Voltage24VDC
Ambient Temperature-40°C to +70°C
CategoryRelays
Contact Rating5A at 250VAC / 30VDC
Electrical Life100, 000 operations
Insulation Resistance1000 MΩ min. at 500VDC
Dielectric Strength2000VAC
Vibration Resistance10 to 55 Hz, 1.5mm double amplitude

Summary

Safety Precautions

Caution

Defines situations where moderate/minor injuries or property damage may occur.

Installation and Wiring Work

Operating and Setting the Equipment

Maintenance and Inspection

Danger

Risks of electric shock, injury, or malfunction if handled by unqualified personnel.

Product Features

Protection Functions

Highlights fine setting, 16 operation time characteristics, fault record, and Modbus interface.

Relay Specifications

General Specification (CBV2-A02S1)

Detailed specifications for the CBV2-A02S1 model, including rating, elements, and output contacts.

General Specification (COC4-A02S1)

Detailed specifications for the COC4-A02S1 model, including rating, elements, and output contacts.

Switch-1: Select Item Switch

Switch-3: Setting Item Switch

Front Panel Operation

Real-Time Measurement [MEASURE]

Describes how to display real-time voltage or current values using the MEASURE function.

Fault Record – Measurement Value [RECORD (RMS)]

Fault Record – Relay Element [RECORD (ELE.)]

Display Relay Element Setting [DISP. (SET.)]

Change Relay Element Setting [SETTING]

Under Protection by Password

Guides on how to input the password to enter the setting mode when password protection is enabled.

Set Numerical Values

Explains how to set numerical values for relay elements using Switch-4.

Set PASSWORD

Explains how to set or change the password for protected operations.

Forced Operation for Trip Digital Output [FORCED OP. (TRIP)]

Forced Operation for Relay Element [FORCED OP. * ]

Display Error Code by Self-Diagnosis [DISP. ERR.CODE]

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