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3.3 Parameter Checking and Setting
OPERATION/CONTROL
52
3.3 Parameter Checking and Setting
The inverter is designed to perform simple variable-speed operation with the factory settings of the
parameters. Set the necessary parameters according to the load and operation specifications. Use the
operation panel (FR-DU04) to set, charge and confirm the parameter values. For full information on the
parameters, refer to “CHAPTER 4 PARAMETERS”(Page 60).
3.3.1 Parameter checking
Pr. 160 "user group read selection" is factory-set to display only the simple mode parameters among the
parameters. Set the following parameters as required.
(1) Pr. 160 "user group read selection"
Parameter
Number
Factory Setting Setting Range
160 9999 0, 1, 10, 11, 9999
•
Setting details
For the setting method and in-depth explanation, refer to page 137.
Pr. 160 Setting Description
0 All parameters are made accessible for reading and writing.
1 Only the parameters registered in user group 1 are made accessible for reading and writing.
10 Only the parameters registered in user group 2 are made accessible for reading and writing.
11
Only the parameters registered in user groups 1 and 2 are made accessible for reading and
writing.
9999 Only the simple mode parameters are made accessible for reading and writing. (Factory setting)
(
2
)
Simple mode parameter list
The following parameters are basic parameters made accessible for reading and writing by setting "9999" in
Pr. 160. For details of their functions, refer to Chapter 4 "PARAMETERS" (page 60).
Parameter
Number
Name Application
0 Torque boost
Used to compensate for a voltage drop in the low frequency range to improve
motor torque reduction in the low speed range.
1 Maximum frequency
2 Minimum frequency
Used to set the upper and lower limits of the output frequency.
3 Base frequency Used to match the inverter outputs (voltage, frequency) to the motor rating.
4 Three-speed setting (high speed)
5 Three-speed setting (middle speed)
6 Three-speed setting (low speed)
Set these parameters when using the terminals to change the running speeds
preset in the parameters.
7 Acceleration time
8 Deceleration time
Used to set the acceleration and deceleration times.
9 Electronic thermal O/L relay
Used to set the current value of the electronic overcurrent protection to protect the
motor from overheat.
10
DC injection brake operation
frequency
11 DC injection brake operation time
12 DC injection brake voltage
13 Starting frequency
Used to adjust the stopping accuracy according to the load.
14 Load pattern selection
Used to select the optimum output characteristic that matches the application and
load characteristics.
19 Base frequency voltage Used to set the base voltage (e.g. motor's rated voltage).
52 DU/PU main display data selection
53 PU level display data selection
54 FM terminal function selection
Used to choose the monitoring and output signals.
55 Frequency monitoring reference
56 Current monitoring reference
Used to set the frequency and current values, which are referenced, for the level
meter.
57 Restart coasting time
58 Restart cushion time
Used to perform automatic restart operation after instantaneous power failure or
commercial power supply-inverter switchover.
3
Simple mode parameter