Multiple Rating Setting - Mitsubishi Electric FR-F820-00077 Instruction Manual

Parameters
5.4.10

Multiple rating setting

Two rating types of different rated current and permissible load can be selected. The optimal inverter
rating can be chosen in accordance with the application, enabling equipment size to be reduced.
Pr.
570
E301
Changing the parameter initial values and setting ranges
● When inverter reset and all parameter clear are performed after setting Pr. 570, the parameter
initial values are changed according to each rating, as shown below.
Pr.
9
22
48
56
148
149
150
165
557
874
893
Tab. 5-26:
The rated current and motor capacity differ depending on the inverter capacity. Refer to the
inverter rated specifications (page 8-1).
NOTES When Pr. 570 = "0" (SLD rating), carrier frequency automatic reduction is enabled regardless of the
setting in Pr. 260 "PWM frequency automatic switchover".
Parameters referred to
Pr. 260
FR-F800
Name
Multiple rating setting
Name
Electronic thermal O/L relay
Stall prevention operation level
Second stall prevention operation level
Current monitoring reference
Stall prevention level at 0 V input
Stall prevention level at 10 V input
Output current detection level
Stall prevention operation level for restart
Current average value monitor signal output
reference current
OLT level setting
Energy saving monitor reference (motor capacity)
Influence of Pr. 570 on other parameters
PWM frequency automatic switchover
(E) Environment setting parameters
Initial value
Setting Description (overload current rating,
range surrounding air temperature)
FM CA
SLD rating
110% 60 s, 120% 3 s (inverse-time
0
characteristics)
Surrounding air temperature 40 °C
1 0
LD rating
120% 60 s, 150% 3 s (inverse-time
1
characteristics)
Surrounding air temperature 50 °C
Pr. 570 setting
0
SLD rated current
110%
110%
SLD rated current
110%
120%
110%
110%
SLD rated current
110%
SLD rated motor
capacity
Refer to
1
LD rated current 5-150
120% 5-180
120% 5-180
LD rated current 5-211
120% 5-180
150% 5-180
120% 5-244
120% 5-415
LD rated current 5-97
120% 5-180
LD rated motor
5-60
capacity
=> page 5-88
5 - 71