Energy Saving Control Selection; Retry Function At Alarm Occurrence; Use The Constant Torque Motor - Mitsubishi Electric FR-F700 Manual

Pr.

Energy saving control selection

60
Pr.60 Energy saving control
Without a fine parameter setting, the inverter automatically
performs energy saving operation.
This inverter is optimum for fan and pump applications.
Pr. 60 Setting
0 (initial value) Normal operation mode
Energy saving operation mode
In the energy saving operation mode, the inverter
4 automatically controls the output voltage to
minimize the inverter output voltage during a
constant operation.
Optimum excitation control mode
The optimum excitation control mode is a control
system which controls excitation current to
9
improve the motor efficiency to maximum and
determines output voltage as an energy saving
system.
Retry function at alarm
Pr.
65, 67 to 69
occurrence
Pr.65 Retry selection
Pr.68 Retry waiting time
If an alarm occurs, the inverter resets itself automatically to
restart. You can also select the alarm description for a retry.
When selection of automatic restart after instantaneous power
failure is selected (Pr. 57 Restart coasting time, restart operation is
performed at retry operation as at an instantaneous power
failure.)
Use Pr. 65 to select the alarm to be activated for retries.
" " indicates the alarms selected for retry.
Alarm Indication
for Retry
0 1
E.OC1
E.OC2
E.OC3
E.OV1
E.OV2
E.OV3
E.THM
E.THT
E.IPF
E.UVT
E.BE
E. GF
E.OHT
E.OLT
E.OPT
E.OP1
E. PE
E.PTC
E.CDO
E.SER
E.ILF
indicates simple mode parameters and
Pr.
Description
Pr.67 Number of retries at alarm occurrence
Pr.69 Retry count display erase
Pr.65 Setting
2 3 4 5
indicates extended parameters. When setting parameters, refer to the instruction manual (applied) and understand instructions.
Pr.
Set the number of retries at alarm occurrence in Pr. 67.
Pr. 67 Setting
0 (initial value) No retry function
Set the number of retries at alarm occurrence.
1 to 10 An alarm output is not provided during retry
operation.
Set the number of retries at alarm occurrence.
(The setting value of minus 100 is the number
101 to 110 of retries.)
An alarm output is provided during retry
operation.
Use Pr. 68 to set the waiting time from when an inverter alarm
occurs until a retry is made in the range 0 to 10s.
Reading the Pr. 69 value provides the cumulative number of
successful restart times made by retry.
Refer to the section about Pr. 22 and other
Pr.
66
relevant parameters.
Refer to the section about Pr. 65 and
Pr.
67 to 69
other relevant parameters.
Refer to the section about Pr. 30 and
Pr.
70
other relevant parameters.

Use the constant torque motor

Pr.
71
(applied motor)
Pr.71 Applied motor
Setting of the used motor selects the thermal characteristic
appropriate for the motor.
Setting is necessary when using a constant-torque motor.
Thermal characteristic of the electronic thermal relay function
suitable for the motor is set.
Thermal Characteristic of the
Pr.71
Electronic Thermal Relay
Setting
Function
0
Thermal characteristics of a standard
(initial
motor
value)
Thermal characteristics of the Mitsubishi
1
constant-torque motor
Thermal characteristics of a standard
2 motor
Adjustable 5 points V/F
Mitsubishi standard motor SF-JR4P
20
(1.5kW or less)
For the 5.5K and 7.5K, the Pr. 0 Torque boost and Pr. 12 DC injection
brake operation voltage settings are automatically changed
according to the Pr. 71 setting as follows.
Standard Motor Setting
Pr.71
0, 2, 20
Pr. 0 3%
Pr. 12 4%
Description
Motor
( : Motor used)
Constant
Standard
torque
(SF-JR,
(SF-HRCA,
etc.)
etc.)
Constant Torque Motor
Setting
1
2%
2%
34