Mitsubishi FR-A800

(E) Environment setting parameters
266
PARAMETERS
 The rated current and motor capacity differ depending on the inverter capacity. Refer to the inverter rated specifications (page 690).
 The initial value for the FR-A820-00077(0.75K) or lower and FR-A840-00038(0.75K) or lower is set to the 85% of the rated inverter current.
• Setting Pr.292 Automatic acceleration/deceleration = "5 or 6 (lift mode)" will change the stall prevention operation level
as shown below.
NOTE
• When Pr.570="0" (SLD rating), carrier frequency automatic reduction is enabled regardless of the setting in Pr.260 PWM
frequency automatic switchover.
• To use the FR-A820-03160(55K) and FR-A840-01800(55K) in the LD and SLD ratings, a DC reactor, which is available as an
option, corresponding to the applied motor is required.
• Setting the LD or SLD rating to the FR-A820-03160(55K) and FR-A840-01800(55K) changes their parameter setting
increments and setting ranges in the same way as for the FR-A820-03800(75K) and FR-A840-02160(75K) or higher. For
example, the setting increment and the setting range of Pr.9 will change from "0.01 A" to "0.1 A" and from "0 to 500 A" to "0
to 3600 A". For the setting of each parameter, refer to the parameter list (on page 122).
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Parameters referred to
Pr.260 PWM frequency automatic switchover page 277
5.7.11 Using the power supply exceeding 480V
• To use a voltage between 480 V and 500 V, set Pr.977 Input voltage mode selection = "1". The setting is applied after a reset.
• Setting Pr.977 = "1" will change the voltage protection level to the one for the 500 V class.
• The increased magnetic excitation deceleration level is changed to 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 and 500 V.
• The voltage protection level of the 200 V class inverters is not affected by the Pr.977 setting.
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Parameters referred to
Pr.660 Increased magnetic excitation deceleration operation selection page 624
Pr.
Pr.570
setting
200V class FR-A820-[]
00046
(0.4K)
00077
(0.75K)
00105
(1.5K)
00167
(2.2K)
00250
(3.7K)
00340
(5.5K)
00490
(7.5K)
00630
(11K)
00770
(15K)
00930
(18.5K)
01250
(22K)
01540
(30K)
01870
(37K)
02330
(45K)
03160
(55K)
03800
(75K)
04750
(90K)
400V class FR-A840-[]
00023
(0.4K)
00038
(0.75K)
00052
(1.5K)
00083
(2.2K)
00126
(3.7K)
00170
(5.5K)
00250
(7.5K)
00310
(11K)
00380
(15K)
00470
(18.5K)
00620
(22K)
00770
(30K)
00930
(37K)
01160
(45K)
01800
(55K)
02160
(75K)
02600
(90K)
or
higher
0
(%)
0, 164 44332222 221.51.5111
2 66 44433222 2222211
3 66 64443322 2222221
7
(s)
0, 1 5 5 5 5 5 5 15151515 15151515151515
2 5 5 5 5 5 5 5 15 15 15 15 15 15 15 15 15 15
3 5 5 5 5 5 5 5 5 1515 15151515151515
8
(s)
0, 1 1010 1010101030303030 30303030303030
2 5 5 5 5 5 5 5 15 15 15 15 15 15 15 15 15 15
3 5 5 5 5 5 5 5 5 1515 15151515151515
12
(%)
0, 144 44442222 2222111
2 44 44444222 2222211
3 44 44444422 2222221
Pr. Setting
Pr.570 setting
Refer to
0 1 2 (Initial value) 3
292
5 110% 120% 150% 200%
303
6 115% 140% 180% 230%
To input a voltage between 480 V and 500 V to the 400 V class inverter, change the voltage protection level.
Pr. Name Initial value Setting range Description
977
E302
Input voltage mode selection
0
0 400 V class voltage protection level
1 500 V class voltage protection level