Mitsubishi Electric FR-F800 Series Instruction Manual page 205

5.4.11 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. (The setting is available for the standard structure
model or the separated converter type.)
Pr. Name
570 Multiple rating
E301 setting
 Changing the parameter initial values and setting ranges
• When the Pr.570 setting is changed, initial values of the following parameters will be changed according to each rating by
performing an inverter reset and All parameter clear.
Pr.
9 Electronic thermal O/L relay
22 Stall prevention operation level
48 Second stall prevention operation level
56 Current monitoring reference
148 Stall prevention level at 0 V input
149 Stall prevention level at 10 V input
150 Output current detection level
165 Stall prevention operation level for restart
Current average value monitor signal output reference
557
current
874 OLT level setting
893 Energy saving monitor reference (motor capacity)
*1 The rated current and motor capacity differ depending on the inverter capacity. Refer to the inverter rated specifications
NOTE
• When Pr.570 = "0" (SLD rating), carrier frequency automatic reduction is enabled regardless of the setting in Pr.260 PWM
frequency automatic switchover.
• Setting Pr.570 is not available for the IP55 compatible model. The LD rating is applied.
Parameters referred to
Pr.260 PWM frequency automatic
204
5. PARAMETERS
5.4 (E) Environment setting parameters
Downloaded from ManualsNet.com
Initial value
Setting range
FM CA
0
1 0
1
Name
switchoverpage 218
search engine
Description (overload current rating, surrounding air temperature)
SLD rating. 110% for 60 seconds, 120% for 3 seconds (inverse-time
characteristics) at surrounding air temperature of 40°C.
LD rating. 120% for 60 seconds, 150% for 3 seconds (inverse-time
characteristics) at surrounding air temperature of 50°C.
Pr.570 setting
0
*1
SLD rated current
110%
110%
*1
SLD rated current
110%
120%
110%
110%
*1
SLD rated current
110%
SLD rated motor capacity
1
*1
LD rated current
120%
120%
*1
LD rated current
120%
150%
120%
120%
*1
LD rated current
120%
*1 *1
LD rated motor capacity
(page 638).
Refer to
266
290
290
314
290
290
339
466
225
290
324