Load Pattern Selection (Pr. 14) - Mitsubishi FR-A500 Series Instruction Manual

4.2.9 Load pattern selection (Pr. 14)

Pr. 14 "load pattern selection"
You can select the optimum output characteristic (V/F characteristic) for the application and load
characteristics.
" The output voltage changes when "4" (energy-saving mode) is set in Pr. 60 "intelligent mode selection".
Parameter Factory
Number Setting
14
Pr.14=0
For constant-torque loads
(e.g. conveyor, cart)
100%
Base frequency
Output frequency (Hz)
Setting
0
1
2
For constant-
torque lift
3
4 RT signal
5 RT signal
Note: 1. This parameter setting is ignored when Pr. 80 and Pr. 81 have been set to select the advanced
magnetic flux vector control mode.
2. When the RT signal is on, the other second functions such as second acceleration/deceleration
time and second torque boost are also selected.
3. When the setting is 4 or 5, X17 signal may be used instead of the RT signal. Use any of Pr. 180
to Pr. 186 to assign the terminal used to input the X17 signal.
Setting Range
0 0 to 5
Pr.14=1
For variable-torque loads
(Fan, pump)
100%
Base frequency
Output frequency (Hz)
Output Characteristics
For constant-torque load
For variable-torque load
Boost for reverse rotation 0%
Boost for forward rotation 0%
ON...For constant-torque load (same as in setting = 0)
OFF...For constant-torque lift, boost for reverse rotation 0% (same as in
setting = 2)
ON...For constant-torque load (same as in setting = 0)
OFF...For constant-torque lift, boost for forward rotation 0% (same as in
setting = 3)
Related parameters
Pr. 0 "torque boost"
Pr. 60 "intelligent mode selection"
Pr. 80 "motor capacity"
Pr. 81 "number of motor poles"
Pr. 180 to Pr. 186
(input terminal function selection)
Pr.14=2
For lift
Boost for forward rotation...Pr. 0 setting
Boost for reverse rotation...0%
100%
Forward
rotation
Reverse
rotation
Pr.0
Base frequency
Output frequency (Hz)
Boost for forward rotation...Pr. 0 setting
Boost for reverse rotation...Pr. 0 setting
74
PARAMETERS
Pr.14=3
For lift
Boost for forward rotation...0%
Boost for reverse rotation...Pr. 0 setting
100%
Reverse
rotation
Forward
rotation
Pr.0
Base frequency
Output frequency (Hz)
Application
Conveyor, cart, etc.
Fan, pump
For lift load
Load pattern selection
switching function using
RT signal