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5. PARAMETERS
5.4 (E) Environment setting parameters
3
4
5
5
5
6
7
8
9
10
5.4.8 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.
Overload current rating and surrounding air temperature
• The overload current rating of the inverter can be changed by the Pr.570 setting.
*1 30°C for the FR-F860-00090 or lower.
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.
*1 The rated current and motor capacity differ depending on the inverter capacity. Refer to the inverter rated specifications (page 612).
• When Pr.570 = "0" (SLD rating), carrier frequency automatic reduction is enabled regardless of the setting in Pr.260 PWM
frequency automatic switchover.
Pr.260 PWM frequency automatic switchover page 179
Pr. Name Initial value Setting range Description (overload current rating,
surrounding air temperature)
570
E301
Multiple rating setting 0 0 SLD rating
1LD rating
Pr.570
setting
Rating Overload current rating Surrounding air temperature
FR-F860-01080 or lower FR-F860-01440 or higher
0 SLD 110% 60 s, 120% 3 s (inverse-time characteristics)
40°C
*1
40°C
1 LD 120% 60 s, 150% 3 s (inverse-time characteristics) 40°C 50°C
Pr. Name Pr.570 setting Refer to
page
0 1
9 Electronic thermal O/L relay
SLD rated current
*1
LD rated current
*1
230
22 Stall prevention operation level 110% 120% 257
48 Second stall prevention operation level 110% 120% 257
56 Current monitoring reference
SLD rated current
*1
LD rated current
*1
284
148 Stall prevention level at 0 V input 110% 120% 257
149 Stall prevention level at 10 V input 120% 150% 257
150 Output current detection level 110% 120% 307
165 Stall prevention operation level for restart 110% 120% 448
557 Current average value monitor signal output
reference current
SLD rated current
*1
LD rated current
*1
187
874 OLT level setting 110% 120% 257
Parametersreferredto
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