MITSUBISHI ELECTRIC INVERTER FR-F700 - Manual (Page 27)

Features
Standard
Specifications
Outline
Dimension
Drawings
Operation
Panel
Protective Functions
Options
Instructions
Motor
Compatibility
W
arranty
Inquiry
Peripheral Devices
Why energy
savings?
Te
rminal Connection
Diagram
Te
rminal Specification
Explanation
Parameter
List
Explanations
of
Parameters
28
indicates simple mode parameters and indicates extended parameters. When setting parameters, refer to the instruction manual (applied) and understand instructions. Pr. Pr.
You can compensate for a voltage drop in the low-frequency region
to improve motor torque reduction in the low-speed region.
Motor torque in the low-frequency range can be adjusted to the
load to increase the starting motor torque.
The starting torque boost can be changed by switching terminal RT.
When simple magnetic flux vector control is selected in Pr. 80, the
settings of Pr. 0 and Pr. 46 are invalid.
You can limit the motor speed.
Clamp the upper and lower limits of the output frequency.
When you want to perform operation above 120Hz, set the upper
limit of the output frequency to Pr. 18 .
(When Pr. 18 is set, Pr. 1 automatically switches to the frequency
of Pr. 18. When Pr. 1 is set, Pr. 18 is automatically changed to the
frequency set in Pr. 1.)
Used to adjust the inverter outputs (voltage, frequency) to the motor rating.
When operating a standard motor, generally set the rated frequency of
the motor to Pr. 3 Base frequency. When running the motor using
commercial power supply-inverter switch-over operation, set Pr. 3 to
the same value as the power supply frequency.
When you want to change the base frequency when switching multiple
motors with one inverter, use the Pr. 47 Second base frequency.
Use Pr. 19 Base frequency voltage to set the base voltage (e.g. rated
motor voltage).
Can be used to change the preset speed in the parameter with
the contact signals.
Any speed can be selected by merely turning on-off the contact
signals (RH, RM, RL, REX signals).
The inverter operates at frequencies set in Pr. 4 when RH signal is
on, Pr. 5 when RM signal is on and Pr. 6 when RL signal is on.
Frequency from speed 4 to speed 15 can be set according to the
combination of the RH, RM, RL and REX signals. Set the running
frequencies to Pr. 24 to Pr. 27, Pr. 232 to Pr. 239. (In the initial value
setting, speed 4 to 15 are unavailable.)
Used to set motor acceleration/deceleration time.
Set a larger value for a slower speed increase/decrease or a
smaller value for a faster speed increase/decrease.
Use Pr. 7 Acceleration time to set the acceleration time required to
reach Pr. 20 Acceleration/deceleration reference frequency from 0Hz.
Use Pr. 8 Deceleration time to set the deceleration time required to
stop from the Pr. 20 Acceleration/deceleration reference frequency.
Manual torque boost
Pr.46 Second torque boost
Pr.0 Initial
Value
When using
the constant
torque motor
0.75K 6% ←
1.5K to 3.7K 4% ←
5.5K, 7.5K 3% 2%*
11K to 37K 2% ←
45K, 55K 1.5% ←
75K or more 1% ←
* If the initial set Pr. 71 value
is changed to the setting
for use with a constant-
torque motor, the Pr. 0
setting changes to the
corresponding value in
above.
Maximum/minimum
frequency
Pr.18 High speed maximum frequency
Base frequency, voltage
Pr.19 Base frequency voltage Pr.47 Second V/F (base frequency)
Pr.
0
Pr.
46
Pr.0 Torque boost
Output
voltage
Pr.0
Pr.46 Setting
range
Base
frequency 0
100%
Output frequency(Hz)
Pr.
1, 2
Pr.
18
Pr.1 Maximum frequency Pr.2 Minimum frequency
Output frequency
(Hz)
Pr.1
Pr.18
Pr.2 Frequency setting
Clamped at the
maximum frequency
Clamped at the
minimum frequency
5, 10V
(20mA)
0
(4mA)
Pr.
3
Pr.
19, 47
Pr.3 Base frequency
Pr.19
Output voltage (V)
Output frequency
(Hz)
Pr.3
Pr.47
Multi-speed setting operation
Pr.24 Multi-speed setting (speed4) Pr.25 Multi-speed setting (speed 5)
Pr.26 Multi-speed setting (speed 6) Pr.27 Multi-speed setting (speed 7)
Pr.232 Multi-speed setting (speed 8) Pr.233 Multi-speed setting (speed 9)
Pr.234 Multi-speed setting (speed 10) Pr.235 Multi-speed setting (speed 11)
Pr.236 Multi-speed setting (speed 12) Pr.237 Multi-speed setting (speed 13)
Pr.238 Multi-speed setting (speed 14) Pr.239 Multi-speed setting (speed 15)
*1 When turning RH, RM and RL off and REX on with "9999" set in Pr. 232
"multi speed setting (8 speed), the inverter operates at frequency set in
Pr. 6.
Acceleration/deceleration time setting
Pr.20 Acceleration/deceleration reference frequency
Pr.21 Acceleration/deceleration time increments
Pr.44 Second acceleration/deceleration time
Pr.45 Second deceleration time
Pr.
4 to
Pr.
6
Pr.
24 to 27, 232 to 239
Pr.4 Multi-speed setting (high speed) Pr.5 Multi-speed setting (middle speed)
Pr.6 Multi-speed setting (low speed)
ON
ON ON ON ON
ON ON
ON ON ON
ON
Output frequency (Hz)
Speed 1
(High speed)
Speed 2
(Middle speed)
Speed 3
(Low speed) Speed 4
Speed 5
Speed 6
Speed 7
Time
RH
RM
RL
Time
Speed 8
ON ON ON ON ON ON ON ON
ON ON ON ON
ON ON ON ON
ON ON ON ON
RH
RM
RL
REX
Output frequency (Hz)
*1
Speed 9
Speed 10
Speed 11
Speed 12
Speed 13
Speed 14
Speed 15
Pr.
7, 8
Pr.
20, 21, 44, 45
Pr.7 Acceleration time Pr.8 Deceleration time
Running
frequency
Acceleration
time Deceleration
time
Time
Pr.20
Pr.7 Pr.8
Output frequency
(Hz)
(60Hz)
Pr.21
Setting
Description
0
(initial value)
Increments:
0.1s
Range:
0 to 3600s
Increments and
setting range of
acceleration/
deceleration
time setting can
be changed.
1
Increments:
0.01s
Range:
0 to 360s
Explanations of Parameters