Explanation Of Parameters - Mitsubishi Electric FR-F700PJ Series Manual

Explanation of Parameters

In the following section, the following marks indicate the operable controls:
........V/F control (General-purpose motor),
V/F V/F V/F
........General-purpose magnetic flux vector control (General-purpose motor),
GP GP GP
MFVC MFVC MFVC
........IPM motor control (dedicated IPM motor). (Parameters without any marks are valid for all controls.)
IPM IPM IPM
Also the following marks indicate parameter types:
................Simple mode parameters,
0, 46
Manual torque boost
Pr.0 Torque boost
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 RT signal switches between two start torque boost settings.

Enabled only under V/F control.
100%
Pr. 0
Setting range
Pr. 46
0 Base frequency
Output frequency (Hz)
1, 2, 18
Maximum/minimum frequency
Pr.1 Maximum frequency
Pr.18 High speed maximum frequency
You can limit the motor speed.
 Clamp the upper and lower limits of the output frequency.

To operate with a frequency higher than 120Hz under V/F control or
General-purpose magnetic flux vector control, set the upper limit for
the output frequency in Pr. 18.
(When Pr. 18 is set, Pr. 1 automatically switches to the frequency of
Pr. 18. Also, when Pr. 1 is set, Pr. 18 is automatically changed to the
frequency set in Pr. 1.)
Output frequency
(Hz)
Pr. 1
Pr. 18
Pr. 2
0
(4mA)
Clamped at the
minimum frequency
When setting parameters, refer to the instruction manual (applied) and understand instructions.
.................. Extended parameters
V/F V/F V/F
Pr.46 Second torque boost
When
using the
Pr.0 Initial Mitsubishi
Value constant
torque
motor
0.75K or
6% 
lower
1.5K to 3.7K 4%

5.5K, 7.5K 3% 2%
11K, 15K 2% 
 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.
Pr.2 Minimum frequency
Clamped at the
maximum frequency
Frequency setting
5, 10V
(20mA)
3, 19, 47
Base frequency, voltage
Pr.3 Base frequency
Pr.47 Second V/F (base frequency)
 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 V/F (base
frequency).
 Use Pr. 19 Base frequency voltage to set the base voltage (e.g. rated
motor voltage).

Enabled only under V/F control.
Pr. 19
4 to 6, 24 to 27, 232 to 239
Multi-speed setting operation
Pr.4 Multi-speed setting (high speed)
Pr.6 Multi-speed setting (low speed)
Pr.25 Multi-speed setting (speed 5)
Pr.27 Multi-speed setting (speed 7)
Pr.233 Multi-speed setting (speed 9)
Pr.235 Multi-speed setting (speed 11)
Pr.237 Multi-speed setting (speed 13)
Pr.239 Multi-speed setting (speed 15)
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.)
Speed 1
(High speed)
Speed 5
Speed 2
Speed 6
(Middle speed)
Speed 3 Speed 4
(Low speed)
Speed 7
ON ON ON ON
RH
ON ON ON ON
RM
ON ON ON
RL
REX
 When turning RH, RM and RL off and REX on with "9999" set in
232 "multi speed setting (8 speed), the inverter operates at frequency
Pr. 6
set in .
V/F V/F V/F
Pr.19 Base frequency voltage
Output frequency
(Hz)
Pr. 3
Pr. 47
Pr.5 Multi-speed setting (middle speed)
Pr.24 Multi-speed setting (speed 4)
Pr.26 Multi-speed setting (speed 6)
Pr.232 Multi-speed setting (speed 8)
Pr.234 Multi-speed setting (speed 10)
Pr.236 Multi-speed setting (speed 12)
Pr.238 Multi-speed setting (speed 14)
Speed 10
Speed 11
Speed 12
Speed 9
Speed 13
Speed 8
Speed 14
Speed 15
Time
ON ON ON ON
ON ON ON ON
ON ON ON ON
ON ON ON ON ON ON ON ON
∗
Pr.
33