Multiple Rating (Pr.570) - Mitsubishi Electric FR-F720-00046 Instruction Manual

4.3.5

Multiple rating (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.
Parameter
Name
Number
570 Multiple rating setting
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 179)
• The initial value and setting range of the following parameters are changed by performing reset and all parameter
clear after changing this parameter setting.
• Reflect the Pr. 570 setting in the following procedure.
1) Change the Pr. 570 setting.
2) Reset the inverter.
3) Perform all parameter clear.
Parameter
Number
Electronic thermal O/L
9
relay
Stall prevention operation
22
level
Stall prevention operation
23 level compensation factor
at double speed
Second stall prevention
48
operation current
Current monitoring
56
reference
Stall prevention level at
148
0V input
Stall prevention level at
149
10V input
Output current detection
150
level
Stall prevention operation
165
level for restart
Current average value
557 monitor signal output
reference current
Energy saving monitor
893 reference (motor
capacity)
*1 The rated current differs according to the inverter capacity. Refer to rated specifications (page 308).
*2 For the FR-F720-02330(FR-F740-01160) or less, SLD/LD value of applied moter capacity is the same. Refer to rated specifications (page 308).
CAUTION
When Pr. 570 = "0" (initial value), Pr.260 PWM frequency automatic switchover becomes invalid. (Refer to page 159.)
Initial Value
0
Name
Initial Value SLD rated current
Setting Range 0, 0.1 to 120%, 9999
Initial Value
Setting Range
Initial Value
Setting Range
Initial Value
Initial Value SLD rated current
Setting Range
Initial Value
Setting Range
Initial Value
Setting Range
Initial Value
Setting Range
Initial Value
Initial Value SLD rated current
SLD value of applied
Initial Value
moter capacity
Adjustment of the output torque (current) of the motor
Setting
Range
SLD
Surrounding air temperature 40°C (104°F),
0
Overload current rating 110% 60s, 120% 3s
(Inverse time characteristics)
LD
Surrounding air temperature 50°C (122°F),
1
Overload current rating 120% 60s, 150% 3s
(Inverse time characteristics)
Pr. 570 Setting
0
(initial value)
LD rated current
*1
0, 0.1 to 150%, 9999
110%
0 to 150%, 9999 0 to 200%, 9999
9999
0, 0.1 to 120% 0, 0.1 to 150%
110%
LD rated current
*1
0 to 120% 0 to 150%
110%
0 to 120% 0 to 150%
120%
0 to 120% 0 to 150%
110%
0 to 120% 0 to 150%
110%
LD rated current
*1
LD value of applied
moter capacity
*2
Description
Refer to
Page
1
101
*1
76
120%
76
9999
76
120%
137
*1
76
120%
76
150%
127
120%
142
120%
259
*1
154
*2
81
4