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<<About the manuals>>

This Instruction Manual and the MELSERVO Servo Motor Instruction Manual (Vol.2) are required if you use

the General-Purpose AC servo MR-J3-B for the first time. Always purchase them and use the MR-J3-B

safely.

Relevant manuals

Manual name Manual No.

MELSERVO-J3 Series Instructions and Cautions for Safe Use of AC Servos

(Enclosed in converter unit and servo amplifier (drive unit).)

IB(NA)0300077

MELSERVO Servo Motor Instruction Manual Vol.2 SH(NA)030041

EMC Installation Guidelines IB(NA)67310

Details of MR-J3-CR55K(4) and MR-J3-DU30KB(4) to MR-J3-DU55KB4 are described in chapter 13 of this

INSTRUCTION MANUAL.

For the products of 30kW or more, refer to chapter 13.

<<About the wires used for wiring>>

Wiring wires mentioned in this instruction manual are selected based on the ambient temperature of 40°C

(104

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MEMO

CONTENTS

1. FUNCTIONS AND CONFIGURATION 1 - 1 to 1 -28

1.1 Introduction ............................................................................................................................................... 1 - 1

1.2 Function block diagram ............................................................................................................................ 1 - 2

1.3 Servo amplifier standard specifica tions ................................................................................................... 1 - 5

1.4 Function list .............................................................................................................................................. 1 - 7

1.5 Model code definition ............................................................................................................................... 1 - 8

1.6 Combination with servo motor ................................................................................................................ 1 -10

1.7 Structure .................................................................................................................................................. 1 -11

1.7.1 Parts identification ............................................................................................................................ 1 -11

1.7.2 Removal and reinstallation of the front cover .................................................................................. 1 -18

1.8 Configuration including auxiliary equipment .......................................................................................... 1 -21

2. INSTALLATION 2 - 1 to 2 - 6

2.1 Installation direction and clearances ....................................................................................................... 2 - 1

2.2 Keep out foreign materials ....................................................................................................................... 2 - 3

2.3 Cable stress ............................................................................................................................................. 2 - 3

2.4 SSCNET

cable laying............................................................................................................................ 2 - 4

2.5 Inspection items ....................................................................................................................................... 2 - 6

2.6 Parts having service lives ........................................................................................................................ 2 - 6

3. SIGNALS AND WIRING 3 - 1 to 3 -52

3.1 Input power supply circuit ........................................................................................................................ 3 - 2

3.2 I/O signal connection example ............................................................................................................... 3 -10

3.3 Explanation of power supply system ...................................................................................................... 3 -12

3.3.1 Signal explanations .......................................................................................................................... 3 -12

3.3.2 Power-on sequence ......................................................................................................................... 3 -13

3.3.3 CNP1, CNP2, CNP3 wiring method ................................................................................................ 3 -14

3.4 Connectors and signal arrangements .................................................................................................... 3 -23

3.5 Signal (device) explanations ................................................................................................................... 3 -24

3.6 Alarm occurrence timing chart ................................................................................................................ 3 -27

3.7 Interfaces ................................................................................................................................................. 3 -28

3.7.1 Internal connection diagram ............................................................................................................ 3 -28

3.7.2 Detailed description of interfaces ..................................................................................................... 3 -29

3.7.3 Source I/O interfaces ....................................................................................................................... 3 -31

3.8 Treatment of cable shield external conductor ........................................................................................ 3 -32

3.9 SSCNET

cable connection .................................................................................................................. 3 -33

3.10 Connection of servo amplifier and servo motor ................................................................................... 3 -35

3.10.1 Connection instructions .................................................................................................................. 3 -35

3.10.2 Power supply cable wiring diagrams ............................................................................................. 3 -36

3.11 Servo motor with an electromagnetic brake ......................................................................................... 3 -46

3.11.1 Safety precautions ......................................................................................................................... 3 -46

3.11.2 Timing charts .................................................................................................................................. 3 -47

3.11.3 Wiring diagrams (HF-MP series

HF-KP series servo motor)...................................................... 3 -50

3.12 Grounding .............................................................................................................................................. 3 -51