Mitsubishi Electric FR-F820-00046 Instruction Manual page 637

Fr-f800 series
Hide thumbs Also See for FR-F820-00046:
Table of Contents

Advertisement

Item
Number of connectable motors
Number of motor poles
Rated motor frequency
Maximum output frequency
Permissible load
Maximum starting torque
Terminals 2 and 4
(0 to 10 V / 12 bits)
Frequency
Terminals 2 and 4
setting and
(0 to 5 V / 11 bits or
resolution
0 to 20 mA / 11 bits)
(based on the
motor rating)
(0 to ±10 V / 12 bits)
(0 to ±5 V / 11 bits)
Pulse output for
Output signal
Carrier frequency
Automatic restart after
instantaneous power failure
Startup delay
Driving by the commercial power
supply
Operation during coasting
Maximum motor wiring length
*1
Select a motor with the rated current equal to or less than the inverter rated current. (It must be 0.4 kW or higher.)
If a motor with substantially low rated current compared with the inverter rated current is used, speed and torque accuracies may deteriorate due
to torque ripples, etc. Set the rated motor current to about 40% or higher of the inverter rated current.
*2
For the MM-EFS (1500 r/min specification), the number of motor poles differs between the 15 kW or lower motor (6 poles) and the 18.5 kW or
higher motor (8 poles). For this reason, the frequency setting resolution also differs between them.
*3
For the FR-F820-02330(55K) or lower and FR-F840-01160(55K) or lower.
636
9. APPENDIX
9.2 Specification comparison between PM motor control and induction motor control
1: 1
MM-EFS (1500 r/min specification) 15 kW or
lower: 6 poles
MM-EFS (1500 r/min specification) 18.5 kW or
higher: 8 poles
MM-EFS (3000 r/min specification): 6 poles
MM-THE4: 6 poles
MM-EFS (1500 r/min specification) 15 kW or
lower: 75 Hz
MM-EFS (1500 r/min specification) 18.5 kW or
higher: 100 Hz
MM-EFS (3000 r/min specification): 150 Hz
MM-THE4: 75 Hz
MM-EFS (1500 r/min specification) 15 kW or
lower: 112.5 Hz
MM-EFS (1500 r/min specification) 18.5 kW or
higher: 150 Hz
MM-EFS (3000 r/min specification): 200 Hz
MM-THE4: 90 Hz
120% 60 s, 150% 3 s (inverse-time
characteristics)
(The % value is a ratio to the rated motor current.)
50%
MM-EFS (1500 r/min specification) 15 kW or
*2
lower
and MM-THE4: 0.018 Hz
MM-EFS (1500 r/min specification) 18.5 kW or
*2
higher
: 0.025 Hz
MM-EFS (3000 r/min specification): 0.036 Hz
MM-EFS (1500 r/min specification) 15 kW or
*2
lower
and MM-THE4: 0.036 Hz
MM-EFS (1500 r/min specification) 18.5 kW or
Terminal 1
*2
higher
: 0.050 Hz
MM-EFS (3000 r/min specification): 0.072 Hz
MM-EFS (1500 r/min specification) 15 kW or
*2
lower
and MM-THE4: 0.072 Hz
Terminal 1
MM-EFS (1500 r/min specification) 18.5 kW or
*2
higher
: 0.100 Hz
MM-EFS (3000 r/min specification): 0.144 Hz
In the initial setting, 1 mA is output at the rated
motor frequency from across terminals FM and
SD. (SD is a common terminal.)
meter
The permissible frequency load current is 2 mA.
Pulse specification: 1440 pulses/s at the rated
motor frequency
Four patterns of 2 kHz, 6 kHz, 10 kHz, and 14
*3
kHz
Two patterns of 2 kHz and 6 kHz
No startup delay time.
Using the regeneration avoidance function
together is recommended.
Startup delay of about 0.1 s for initial tuning.
Not available.
Never connect an IPM motor to the commercial
power supply.
While the motor is coasting, an electrical potential
is generated across motor terminals.
Before wiring, make sure that the motor is
stopped.
100 m or shorter
PM motor control
*4
Induction motor control
Several motors can be driven under V/F control.
Normally 2, 4, or 6 poles.
Normally 50 Hz or 60 Hz
590 Hz (17700 r/min with 4P)
(Set the upper limit frequency (Pr.1, Pr.18)
according to the motor and machine
specifications.)
120% 60 s, 150% 3 s (inverse-time
characteristics)
(The % value is a ratio to the inverter rated
current.)
120% (Advanced magnetic flux vector control)
0.015 Hz (60 Hz rating)
0.03 Hz (60 Hz rating)
0.06 Hz (60 Hz rating)
In the initial setting, 1 mA is output at 60 Hz from
across terminals FM and SD. (SD is a common
terminal.)
The permissible frequency load current is 2 mA.
Pulse specification: 1440 pulses/s at 60 Hz
Selectable between 0.75 kHz to 14.5 kHz
*4
0.75 kHz to 6 kHz
Startup waiting time exists.
No startup delay.
Can be driven by the commercial power supply.
While the motor is coasting, no potential is
generated across motor terminals.
Overall length: 500 m or shorter
*3

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents