Using The Power Supply Exceeding 480 Vac - Mitsubishi Electric FR-F820-00046 Instruction Manual

 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 switchoverpage 207

5.4.12 Using the power supply exceeding 480 VAC

To input a voltage between 480 VAC and 500 VAC to the 400 V class inverter, change the voltage protection level.
Pr. Name
977 Input voltage mode
E302 selection
• To use a voltage between 480 VAC and 500 VAC, set Pr.977 Input voltage mode selection = "1". The setting is applied
after a reset.
• Setting Pr.977 = "1" changes the voltage protection level to the one for the 500 V class.
• The increased magnetic excitation deceleration operation level is 740 V. Use Pr.660 Increased magnetic excitation
deceleration operation selection to select the increased magnetic excitation deceleration.)
NOTE
• Stand-alone options (except line noise filter) cannot be used when inputting a voltage between 480 VAC and 500 VAC.
• The voltage protection level of the 200 V class inverters is not affected by the Pr.977 setting.
Parameters referred to
Pr.660 Increased magnetic excitation deceleration operation
Name
Setting
Initial value
range
0
0 1
2
selectionpage 547
Pr.570 setting
0
*1
SLD rated current LD rated current
110% 120%
110% 120%
*1
SLD rated current LD rated current
110% 120%
120% 150%
110% 120%
110% 120%
*1
SLD rated current LD rated current
110% 120%
*1
SLD rated motor capacity LD rated motor capacity
Description
400 V class voltage protection level
500 V class voltage protection level
For manufacturer setting. Do not set.
5.4 (E) Environment setting parameters
1
Refer to
2
1
*1
252
273
273 3
*1
297
273
273
4
321
446
*1
213
5
273
*1
306
(page 612).
6
7
8
9
10
195
5. PARAMETERS