Mitsubishi Electric FR-A700 EC, Instruction Manual, Page: 346 / 826

Adjust the output torque of the motor (current) Parameter
6 - 166
6.7.5 Multiple rating (SLD = Super Light Duty, LD = Light Duty, ND = Normal
Duty, HD = Heavy Duty) (Pr. 570)
You can use the inverter by changing the overload current rating specifications according to load
applications. Note that the control rating of each function changes.
This function is valid for V/f control only. This parameter can be set only when "9999" is set
in Pr. 80, Pr. 81, Pr. 453, and Pr. 454.
The initial value and setting range of the following parameters are changed by performing all
parameter clear and reset after changing this parameter setting.
Pr.
No.
Name
Initial
Value
Setting
Range
Description Parameters referred to
Refer to
Section
570
Multiple rating
setting
2
0
SLD
Ambient temperature 40°C,
Overload current rating 110% 60s, 120% 3s
(Inverse time characteristics)
—
1
LD
Ambient temperature 50°C,
Overload current rating 120% 60s, 150% 3s
(Inverse time characteristics)
2
ND
Ambient temperature 50°C,
Overload current rating 150% 60s, 200% 3s
(Inverse time characteristics)
3
HD
Ambient temperature 50°C,
Overload current rating 200% 60s, 250% 3s
(Inverse time characteristics)
Pr. No. Name
Pr. 570
Refer
to
Page
0 1
2
(initial value)
3
9
Electronic thermal
O/L relay
Initial Value
SLD rated
current
LD rated
current
ND rated
current
HD rated
current
6-212
22
Stall prevention oper-
ation level
Setting Range 0–400% 0–400% 0–400% 0–400%
6-80,
6-155
Initial Value 110 % 120 % 150 % 200 %
23
Stall prevention oper-
ation level compensa-
tion factor at double
speed
Setting Range 0–150%/9999 0–200%/9999 0–200%/9999 0–200%/9999
6-155
Initial Value 9999 9999 9999 9999
48
Second stall preven-
tion operation current
Setting Range 0–120% 0–150% 0–220% 0–280%
6-155
Initial Value 110% 120% 150% 200%
56
Current monitoring
reference
Initial Value
SLD rated
current
LD rated
current
ND rated
current
HD rated
current
6-330
62
Reference value at
acceleration
Setting Range 0–120% 0–150% 0–220% 0–280%
6-208
Initial Value 9999 9999 9999 9999
63
Reference value at
deceleration
Setting Range 0–120% 0–150% 0–220% 0–280%
6-208
Initial Value 9999 9999 9999 9999
114
Third stall prevention
operation current
Setting Range 0–120% 0–150% 0–220% 0–280%
6-155
Initial Value 110% 120% 150% 200%
148
Stall prevention level
at 0V input
Setting Range 0–120% 0–150% 0–220% 0–280%
6-155
Initial Value 110% 120% 150% 200%
149
Stall prevention level
at 10V input
Setting Range 0–120% 0–150% 0–220% 0–280%
6-155
Initial Value 120% 150% 200% 250%
150
Output current detec-
tion level
Setting Range 0–120% 0–150% 0–220% 0–280%
6-312
Initial Value 110% 120% 150% 200%
152
Zero current detection
level
Setting Range 0–120% 0–150% 0–220% 0–280%
6-312
Initial Value 5% 5% 5% 5%
Tab. 6-34: Influence of Pr. 570 on other parameters (1)