MITSUBISHI ELECTRIC FR-S520E User Manual
Page 6
I
CONT
ENTS
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 earth (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
Earthing (Grounding) precautions ............................................................... 19
1.2.10 Power supply harmonics ............................................................................. 20
1.2.11 Harmonic suppression guideline ................................................................. 21
1.2.12 Inverter-driven 400V class motor ................................................................ 24
1.3
How to use the control circuit terminals ...............................25
1.3.1
Terminal block layout .................................................................................. 25
1.3.2
Wiring instructions ....................................................................................... 25
1.3.3
Changing the control logic........................................................................... 26
1.4
Input terminals.........................................................................28
1.4.1
Run (start) and stop (STF, STR, STOP) ..................................................... 28
1.4.2
Connection of frequency setting potentiometer and
output frequency meter (10, 2, 5, 4, AU) ..................................................... 31
1.4.3
External frequency selection (REX, RH, RM, RL) ....................................... 32
1.4.4
Indicator connection and adjustment (FM) .................................................. 34
1.4.5
Control circuit common terminals (SD, 5, SE)............................................. 36
1.4.6
Signal inputs by contactless switches ......................................................... 36
1.5
How to use the input signals
(assigned terminals RL, RM, RH, STR)..................................37
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" ................................................................... 37
1.5.2
Second function selection (RT signal): Pr. 60 to Pr. 63 setting "3" ............. 37