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Chapter 4 - Parameter Description [FU2]
59
FU2-75: DB (Dynamic Braking) Resistor Mode
Selection
This code is used to protect the DB resistor from
over heating.
Setting Range
Select Display
Description
None
0
None
1
This is selected when there is no resistor
connected. At this time, inverter does not
generate DB turn on signal.
Ext. DB-R
2
This is selected when using an external
DB resistor.
Enable Duty (%): 0 ~ 30 %
Continuous Turn On Time: 15 seconds
☞
The inverter turns the DB turn on signal OFF when the
Continuous Turn On Time expires during dynamic braking,
and an over voltage fault can occur. When this happens,
increase the deceleration time or install an external high-duty
DB resistor.
☞ Install an exterior high-duty DB resistor when the load
accelerates and decelerates frequently. Set the FU2-75 [DB
Resistor Mode selection] to ‘Ext. DB-R’, and set the FU2-76
[Duty of DB Resistor].
FU2-76: Duty of DB (Dynamic Braking) Resistor
This must be set when using an external DB
resistor. The duty is calculated by ‘%ED=Decel
time * 100 / (Accel time + Steady speed time +
Decel time + Stop status time)’.
FU2-79: Software Version
Displays the software version.
FU2-81 ~ FU2-90: 2
nd
Motor Related Functions
▼
▼
These functions are displayed only when one of
the multifunction inputs is set at ‘2nd func’ in I/O-
12 to I/O-14.
When using two motors with an inverter by
exchanging them, different values can be set for
the 2
nd
motor by using the multifunction input
terminal.
Following table is the 2
nd
functions corresponding
to the 1
st
functions.
2
nd
Functions 1
st
Functions Description
FU2-81
[2nd Acc time]
DRV-01
[Acc. time]
Acceleration time
FU2-82
[2nd Dec time]
DRV-02
[Dec. time]
Deceleration time
FU2-83
[2nd Base Freq]
FU1-21
[Base freq]
Base Frequency
FU2-84
[2nd V/F]
FU1-29
[V/F Pattern]
Volts/Hz mode
FU2-85
[2nd F-boost]
FU1-27
[Fwd Boost]
Forward torque boost
FU2-86
[2nd R-boost]
FU1-28
[Rev Boost]
Reverse torque boost
FU2-87
[2nd Stall]
FU1-60
[Stall Level]
Stall prevention level
FU2-88
[2nd ETH 1min]
FU1-51
[ETH 1min]
ETH level for 1 minute
FU2-88
[2nd ETH cont]
FU1-52
[ETH cont]
ETH level for continuous
FU2-90
[2nd R-Curr]
FU2-33
[Rated-Curr]
Motor rated current