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Connection of the converter and the inverter
2.5
Connection of the converter and the inverter
2.5.1
Inverter selection
Connectable inverter models depend on the operation mode of the FR-XC series converter, the common bus
regeneration mode or the power regeneration mode.
Common bus regeneration mode
• Observe the following inverter selection conditions.
Item
The total capacity of the connected inverters (regardless of the rating or model of the inverters) must not exceed
Inverter capacity
the applicable inverter capacity (kW) shown in the converter's rated specifications (refer to
Motor rated
The total of the rated current of the connected motors (rated current for the selected rating) must not exceed
current
the applicable motor current (A) shown in the converter's rated specifications (refer to
Number of
The number of inverters actually connected must not exceed the number of connectable inverters shown in the
inverters
converter's rated specifications (refer to
Inverter with the
For the HD rating, 200% of the total rated current of the connected motors must not exceed 150% of the
HD rating
applicable motor current (A) shown in the converter's rated specifications.
∗1
Note that the applicable inverter capacity and motor current are different depending on the harmonic suppression function condition of the FR-
XC-(H)22K, FR-XC-(H)30K, FR-XC-(H)18.5K-PWM, or FR-XC(H)22K-PWM converter (refer to
NOTE
• For details of the inverter capacity, refer to the rating specifications in the Instruction Manual of the inverter.
• For the FR-V500 inverter, the capacity used for selection is as follows.
Capacity of the FR-V500 (kW)
Capacity used for selection (kW)
• Refer to
page 67
number of connectable inverters.
• The power factor improving AC reactor or DC reactor cannot be used.
Power regeneration mode
• Follow the following steps to confirm your converter selection and select the FR-HAL AC reactor.
1) Check the value of the potential regenerative capacity (kW) and the overload current rating of the converter you have
(on
page
156). Confirm that you have selected the right converter with larger capacity than a motor capacity.
Selection example:
For a motor which can supply 10 kW regenerative power with an overload capacity of 120% (12 kW) for 60 seconds,
the FR-XC-15K (15 kW converter) should be selected.
Model FR-XC-[ ]K
Applicable inverter
capacity (kW)
A
li bl
(
)
Potential regenerative capacity (kW)
Rated current (A) (regenerative driving)
Overload current rating
Potential regenerative capacity (kW)
Rated current (A) (regenerative driving)
Overload current rating
Rated input AC voltage/
38
INSTALLATION AND WIRING
Example: FR-A820
Model FR-A820-[ ]
SLD
1.5
2.2
and
page 156
for the details of the applicable inverter capacity, the applicable inverter current, and the
∗1
Harmonic suppression
Disabled
Enabled
t
t
Di bl d
∗7
Disabled
Condition
page
156).
00046 00077 00105
0.4K
0.75K
1.5K
0.75
1.5
2.2
2.2
3.7
5.5
7.5
11
3.7
5.5
7.5
11
15
7.5
11
7.5
11
⎯
⎯
33
46
5.5
7.5
19
26
5.5
7.5
21
28
Three-phase 200 to 240 V, 50/60 Hz
page
page
page
156).
15
18.5
22
30
18.5
22
30
37
15
22
30
15
22
30
⎯
18.5
22
61
90
11
11
18.5
22
37
62
74
100% continuous / 150% 60 s
11
18.5
22
40
68
81
100% continuous / 150% 60 s
156).
∗1
156).
∗1
37
45
55
45
55
55
37
55
37
55
37
55
14
21
30
45
102
152
30
45
112
167
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