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E6581301
M-2
13
(Continued)
Error
code
Description Possible causes Remedies
QN Motor overload
•
The V/f parameter is improperl
y
set.
•The motor is locked up.
•Low-speed operation is performed
continuously.
•An excessive load is applied to the
motor during operation.
•Check the V/f parameter setting.
•Check the load (operated machine).
•Adjust H to the overload that the motor can
withstand durin
g
operation in a low speed ran
g
e.
• Reduce the DC braking amount H and the
DC braking time H.
QNT
Dynamic
braking resistor
overload
•Rapid deceleration is operated.
•Dynamic braking is too large.
•Increase the deceleration time FGE.
•Increase the capacity of dynamic braking resistor
(wattage) and adjust PBR capacity parameter
RDER.
QR
Overvoltage
during
acceleration
•
The input volta
g
e fluctuates abnormall
y
.
(
1
)
The power suppl
y
has a capacit
y
of 500kVA or more.
(2)A power factor improvement
capacitor is opened and closed.
(3)A system using a thyrister is
connected to the same power
distribution line.
•A restart signal is input to the
rotating motor after a momentary
stop, etc.
•Insert a suitable input reactor.
•Use WX (Auto-restart) and WXE (Regenerative
power ride-though control).
QR
Overvoltage
during
deceleration
•
The deceleration time
FGE
is too
short (regenerative energy is too
large).
•The d
y
namic brakin
g
resistor has a
considerably large resistance.
•
RD
(
D
y
namic brakin
g
resistor
)
is OFF.
Overvolta
g
e limit operation H
is OFF.
•
The input volta
g
e fluctuates abnormall
y
.
(
1
)
The power suppl
y
has a capacit
y
of 500kVA or more.
(2)A power factor improvement
capacitor is opened and closed.
(3)A system using a thyrister is
connected to the same power
distribution line.
•Increase the deceleration time FGE.
•Install a dynamic braking resistor.
•Decrease dynamic braking resistance. (Also reset
the RDT.)
•Set dynamic braking mode parameter RD
properly.
•Set overvolta
g
e limit operation H properl
y
.
•Insert a suitable input reactor.
QR
Overvoltage
during fixed
speed operation
•The input voltage fluctuates
abnormally.
(
1
)
The power suppl
y
has a capacit
y
of 500kVA or more.
(2)A power factor improvement
capacitor is opened and closed.
(3)A system using a thyrister is
connected to the same power
distribution line.
•The motor is in a regenerative
state because the load causes the
motor to run at a frequency higher
than the inverter output frequenc
y
.
•Insert a suitable input reactor.
•Install a dynamic braking resistor.
*QV Overtorque
•Overtorque reaches to a detection
level during operation.
•Stall prevention operation was
performed continuously for a
length of time longer than that set
with H.
•Check system error.
• Check whether the motor is overloaded or the
brake is engaged.
*WE
Low current
operation
•The output current decreased to a
low-current detection level during
operation.
•Check the suitable detection level for the system
(H).
•Make a service call if the setting is correct.
*WR
Undervoltage
(main circuit)
•The input voltage (in the main
circuit) is too low.
•Momentary power failure occurs
because undervoltage continues
lon
g
er than undervolta
g
e detection
time H.
•Check the input voltage.
•To cope with a momentary stop due to
undervoltage, enable WXE (Regenerative power
ride-through control), WX (auto-restart control),
and H (Undervoltage detection time).
G Emer
g
enc
y
stop
•Inverter is stopped by panel
operation during automatic or
remote operation.
•A stop command (input terminal
function: or ) is issued by
an external control device.
•Reset the inverter.
*Presence or absence of parameter trip can be selected.
(Continued overleaf)
- E6581301Ԙ 1
- I. Safety precautions 3
- Danger 4
- II. Introduction 9
- E6581301 11
- - Contents 11
- 1. Read first 17
- 1.3.1 Names and functions 18
- 1) Outside view 18
- 1.3.2 Detaching the cover 25
- 1.4 Notes on the application 30
- 1.4.1 Motors 30
- 1.4.2 Inverters 32
- ■ Disposal 32
- Warning 33
- 1.4.4 Installation 35
- ■ Installation environment 35
- ■ How to install 36
- 2. Connection equipment 41
- 2.2 Standard connections 43
- 2.3 Description of terminals 48
- 3. Operations 55
- Status monitor mode 56
- Standard monitor mode 56
- (when the power is turned on) 56
- Setting monitor mode 56
- Deceleration 57
- 3.2.2 Panel operation 61
- 4.1 How to set parameters 64
- 5. Basic parameters 67
- CW : Automatic torque boost 69
- ■ Preset speed operation 74
- + The inverter is factory 75
- +To save the frequency 75
- HE and the set 75
- 5.6 Selecting control mode 77
- 2) Decreasing output voltage 78
- 3) Increasing starting torque 78
- 5.8 Base frequency 81
- 5.9 Maximum frequency 82
- Estimation of temperature 90
- 5.17 PWM carrier frequency 96
- Warning 97
- Surge killer 103
- 5.20 Standard default setting 107
- ( ) 109
- 5.22 EASY key function 110
- 6. Extended parameters 113
- 6.2 Input signal selection 115
- Internal command 116
- Servo lock status 120
- Command selected 123
- Operation frequency 125
- 6.8 DC braking 126
- 6.10 Jog run mode 131
- Jumping width 2 135
- Jumping width 1 135
- 6.14.1 Retry function 136
- 6.15 Drooping control 139
- Load portion torque input 141
- 6.20 PID control 145
- 6.22 Setting motor constants 148
- Setting motor constants 150
- 6.24 Torque control 152
- 6.25 Torque limit 154
- Positive torque 155
- Negative torque 155
- • Function 158
- 6.31 Pattern operation 163
- 6.32 Preset speed mode 165
- 6.33 Protection functions 166
- 6.33.3 Emergency stop 167
- H : Emergency stop 167
- 6.34 Override 175
- 6.35 Adjustment parameters 177
- Function 179
- ■ Example of setting 1 181
- ■ Example of setting 2 181
- 6.37 Tracing functions 183
- Trace data 1 184
- Trigger input 184
- 6.38 Communication function 187
- 1) 2-wire RS485 188
- 2) 4-wire RS485 190
- Host computer 191
- 6.39 My function 193
- 6.40 Traverse function 194
- 7.1 External operation 195
- B-contact switch 196
- Input terminal 196
- Inverter 196
- Programmable controller 197
- 7.2.4 Analog input filter 203
- 8.2 Monitoring the status 210
- 8.4.1 Trip code display 216
- 9.1.1 EMC directive 221
- Contact your supplier 222
- Use the 224
- EMC FILTER 226
- Ferrite core 1 227
- Shielded cable or [Note 1] 227
- Noise cut plate 228
- AIC, Fuse and Wire sizes 229
- Ｅ６５８１３００ 232
- Note on wiring 233
- 11. Table of parameters 239
- 12. Specifications 285
- E6581301 286
- ■ Outside dimensions and mass 289
- (Installation dimension) 290
- Before making a service call 295
- Cautions about cleaning 303
- 14.2 Periodical inspection 304
- ■ Check items 304
- 15. Warranty 307
- Warning 309
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