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CONTENTS

1. WIRING 1

1.1 Standard connection diagram and terminal specifications ..2

1.1.1 Standard connection diagram ....................................................................... 2

1.1.2 Explanation of main circuit terminals............................................................. 3

1.2 Main circuit terminals ...............................................................6

1.2.1 Terminal block layout .................................................................................... 6

1.2.2 Cables, wiring length, and crimping terminals............................................... 8

1.2.3 Wiring instructions ......................................................................................... 9

1.2.4 Selection of peripheral devices ................................................................... 10

1.2.5 Leakage current and installation of ground leakage circuit breaker............ 12

1.2.6 Power-off and magnetic contactor (MC)...................................................... 16

1.2.7 Regarding the installation of the power factor improving reactor ................ 17

1.2.8 Regarding noise and the installation of a noise filter................................... 18

1.2.9 Grounding precautions ................................................................................ 19

1.2.10 Power supply harmonics ............................................................................. 20

1.2.11 Inverter-driven 400V class motor ................................................................ 21

1.3 How to use the control circuit terminals...............................22

1.3.1 Terminal block layout .................................................................................. 22

1.3.2 Wiring instructions ....................................................................................... 22

1.3.3 Changing the control logic........................................................................... 23

1.4 Input terminals.........................................................................25

1.4.1 Run (start) and stop (STF, STR, STOP) ..................................................... 25

1.4.2 Connection of frequency setting potentiometer and

output frequency meter (10, 2, 5, 4, AU) ..................................................... 28

1.4.3 External frequency selection (REX, RH, RM, RL)....................................... 29

1.4.4 Indicator connection and adjustment (AM).................................................. 31

1.4.5 Control circuit common terminals (SD, 5, SE)............................................. 32

1.4.6 Signal inputs by contactless switches ......................................................... 32

1.5 How to use the input signals

(assigned terminals RL, RM, RH, STR)..................................33

1.5.1 Multi-speed setting (RL, RM, RH, REX signals):

Pr. 60 to Pr. 63 setting "0, 1, 2, 8"

Remote setting (RL, RM, RH signals):

Pr. 60 to Pr. 63 setting "0, 1, 2"................................................................... 33

1.5.2 Second function selection (RT signal): Pr. 60 to Pr. 63 setting "3" ............. 33

1.5.3 Current input selection "AU signal": Pr. 60 to Pr. 63 setting "4" .................. 33

Mitsubishi FR - S500 User Manual

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