Adjusting Output Voltage: Vc (E1-08), Vmin (E1-10); Motor Rated Current: E2-01; Motor Rated Slip: E2-02; Motor No-Load Current: E2-03 - YASKAWA VARISPEED-616G5 Instruction Manual

Adjusting Output Voltage: VC (E1-08), VMIN (E1-10)

Adjust the output voltage when you want to output more torque at low speed, such as in an elevator, or
when torque isn't really necessary and you want to reduce the output voltage to save energy.
Adjustment range:
When generating more torque, gradually increase the voltage but do not exceed 100% of the motor's
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rated current.
When saving energy, decrease the voltage but do not cause stalling.
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Setting the Maximum Output Frequency
The maximum output frequency can be set from 40.0 to 400.0 Hz. Set this constant in accordance with
the motor's maximum rotational speed.
Setting Motor Constants: E2-01 through E2-03 (E5-01 through E5-03), E2-05
J
through E2-08 (E5-05, E5-06)
The motor constants (function E2) will all be set automatically when autotuning is performed, so it
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normally isn't necessary to set them manually. Set these constants manually if autotuning can't be
completed properly.
User constant numbers for motor 2 are given in parentheses.
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Motor Rated Current: E2-01

User User
Name
Constant
Number
E2-01
Motor rated current
(E5-01)
The setting range is 10% to 200% of the Inverter rated output current. The default setting depends upon
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the Inverter capacity. (The table shows the default setting for 200 V class, 0.4 kW Inverters.) (See page
8 - 47.)
Set the rated current (A) shown on the motor nameplate.
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Motor Rated Slip: E2-02

User User
Constant Name
Number
E2-02
Motor rated slip
(E5-02)
The default setting depends upon the Inverter capacity.
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(The table shows the default settings for 200 V class, 0.4 kW Inverters.)
Calculate the rated slip (E2-02) from the value shown on the motor nameplate with the following equa-
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tion and set this value.
Rated slip = rated frequency (Hz) − rated speed (r/min) × number of poles/120

Motor No-load Current: E2-03

User User
Constant Name
Number
E2-03
Motor no-load cur-
rent
(E5-03)
The default setting depends upon the Inverter capacity.
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(The table shows the default settings for 200 V class, 0.4 kW Inverters.)
Set the no-load current (E2-03) at the rated voltage and rated frequency. Normally this value isn't
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shown on the motor nameplate, so it might be necessary to contact the motor manufacturer.
Motor Line-to-line Resistance: E2-05
User User
Constant Name
Number
E2-05
Motor line-to-line
resistance
(E5-05)
200 V class Inverters: Initial value
400 V class Inverters: Initial value
Change g
during during Setting Setting Unit Factory
Opera- Range
tion
0.32 to 6.40 A
×
Change g
during during Setting Setting Unit Factory
Opera- Range
tion
0.00 to
Hz
×
20.00
Change g
during during Setting Setting Unit Factory
Opera- Range
tion
0.00 to
A
×
1500.0
Change g
during during Setting Setting Unit Factory
Opera- Range
tion
0.000 to
× Ω
65.000
7 - 7
7.1 Open-loop Vector Control
0 to 2 V
±
0 to 4 V
±
Valid Access Levels
Factory
Open
V/f V/f with
Setting
Loop
Control PG
Vector
1.90 Q Q Q
Valid Access Levels
Factory
Open
V/f V/f with
Setting
Loop
Control PG
Vector
A A Q
2.90
Valid Access Levels
Factory
Open
V/f V/f with
Setting
Loop
Control PG
Vector
1.20 A A Q
Valid Access Levels
Factory
Open
V/f V/f with
Setting
Loop
Control PG
Vector
A A A
9.842
Flux
Vector
Q
Flux
Vector
7
Q
Flux
Vector
Q
Flux
Vector
A