Mitsubishi FR-S500 Instruction Manual Page 71
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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66
About errors (definitions)
7. ERRORS AND PROTECTIVE FUNCTIONS
7.1 About errors (definitions)
When an alarm occurs in the inverter, the protective function is activated bringing the
inverter to an alarm stop and the PU display automatically changes to any of the
following error (alarm) indications.
For details, refer to the separately available instruction manual (detailed).
(1) Major failures
Operation
Panel
Indication
Function Name Definition
(OC1)
Overcurrent shut-off
during acceleration
The inverter output current rose to or above about
200% of the rated inverter current during
acceleration.
(OC2)
Overcurrent shut-off
during constant speed
The inverter output current rose to or above about
200% of the rated inverter current during constant
speed operation.
(OC3)
Overcurrent shut-off
during deceleration
The inverter output current rose to or above about
200% of the rated inverter current during
deceleration.
(OV1)
Regenerative
overvoltage shut-off
during acceleration
Excessive regenerative energy or surge voltage
occurred during acceleration.
(OV2)
Regenerative
overvoltage shut-off
during constant speed
Excessive regenerative energy or surge voltage
occurred during constant speed.
(OV3)
Regenerative
overvoltage shut-off
during deceleration or
stop
Excessive regenerative energy or surge voltage
occurred during deceleration or stop.
(THM)
Motor overload shut-off
(Electronic thermal relay
function) (*1)
Overload or reduced cooling capability during low-
speed operation
Protection against burnout due to motor
temperature rise
(THT)
Inverter overload shut-off
(Electronic thermal relay
function) (*1)
Current more than 150% of the rated inverter
current flew and overcurrent shut-off did not occur.
Output transistor protection from overheat
(FIN)
Fin overheat Temperature rise of the heatsink.
(GF)
Start-time output side
earth (ground) fault
overcurrent (*2)
Earth (Ground) fault occurred on the inverter's
output side at a start.
*1. Resetting the inverter initializes the internal thermal integration data of the electronic
thermal relay function.
*2. Activated only when "1" is set in Pr. 40 "start-time earth (ground) fault detection selection".
- INSTRUCTION MANUAL (BASIC) 1
- 1. Electric Shock Prevention 2
- 2. Fire Prevention 3
- 3. Injury Prevention 3
- 4. Additional Instructions 3
- Rating plate 6
- Capacity plate 6
- Parts and name plate 6
- Inverter type 6
- Wiring cover 7
- Earth (Ground) 8
- Earth (Ground)Earth (Ground) 8
- (BASIC CONFIGURATION) 10
- Clearances (side) 11
- DC reactor 12
- (FR-HEL/BEL: Option) 12
- Main circuit 13
- 3.2.2 Terminal block layout 14
- Control circuit 17
- Cable stripping size 19
- (2) RS-485 communication 20
- Constant 22
- (Communication) 26
- 4.2 Run and operation 27
- 4.2.2 Basic operation 28
- (PU operation mode) 29
- Operation 30
- Display 30
- Parameter setting complete!! 31
- DRIVE THE MOTOR 32
- [Connection diagram] 33
- Operation 35
- (Refer to page 49) 38
- (external operation) 41
- CLr Setting Definition 44
- 0 Not executed 44
- terminals 2-5) 46
- (Across 46
- (Press the ) 48
- (Press the ) 49
- Basic function parameter list 52
- RH RM RL 53
- Pr. 7 Pr. 8 54
- Output frequency 54
- Setting the parameters 55
- FUNCTION LIST 60
- Soft-PWM Long Wiring Mode 63
- 0 without without 63
- 1 with without 63
- 10 without with 63
- 11 with with 63
- 0 to 50A, 66
- ( is valid) 70
- (1) Major failures 71
- ≠ "- - -" 72
- About errors (definitions) 73
- Checking of the alarm history 74
- 7.6 Troubleshooting 76
- Troubleshooting 77
- 7.7.2 Inspection item 79
- 7.7.3 Periodic inspection 79
- 7.7.5 Replacement of parts 82
- (1) Cooling fan 83
- (2) Smoothing capacitors 84
- (3) Relays 84
- SPECIFICATIONS 86
- Common specifications 89
- OUTLINE DIMENSION DRAWINGS 91
- •Parameter unit (FR-PU04) 93
- European Directive 94
- (2) Low Voltage Directive 95
- 1. Installation 96
- Branch circuit protection 96
- 3. Short circuit ratings 96
- 4. Motor overload protection 97
- <Setting> 97
- REVISIONS 99
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