Delta CFP2000 Series User Manual page 103

Chapter 7 Optional Accessories CFP2000
AC Output Reactor
When using drives in long wiring output application, ground fault (GFF), over-current (oc) and motor
over-voltage (ov) often occur. GFF and oc cause errors due to the drive's self-protective mechanism;
over-voltage damages motor insulation.
The excessive length of the output wires makes the grounded stray capacitance too large, increase
the three-phase output common mode current, and the reflected wave of the long wires makes the motor
dv / dt and the motor terminal voltage too high. Thus, installing a reactor on the drive's output side can
increase the high-frequency impedance to reduce the dv / dt and terminal voltage to protect the motor.
Installation
Install an AC output reactor in series between the three output phases U V W and the motor, as shown in
the figure below:
Specifications of AC output reactors (standard item)
Following tables show the standard AC output reactors specification of Delta CFP2000:
380V–460V / 50–60 Hz
Model kW
VFD007FP4EA-41/-52
0.75
/ VFD007FP4EA-52S
VFD015FP4EA-41/-52
1.5
/ VFD015FP4EA-52S
VFD022FP4EA-41/-52
2.2
/ VFD022FP4EA-52S
VFD037FP4EA-41/-52
3.7
/ VFD037FP4EA-52S
VFD040FP4EA-41/-52
4
/ VFD040FP4EA-52S
VFD055FP4EA-41/-52
5.5
/ VFD055FP4EA-52S
VFD075FP4EA-41/-52
7.5
/ VFD075FP4EA-52S
VFD110FP4EA-41/-52
11
/ VFD110FP4EA-52S
VFD150FP4EA-41/-52
15
/ VFD150FP4EA-52S
VFD185FP4EA-41/-52
18.5
/ VFD185FP4EA-52S
Wiring an AC output reactor
Rated Amps of
Max. continuous
AC Reactor
Amps (Arms)
HP
(Arms)
Normal Light Normal
Duty Duty Duty
1
1.7 3 2.72
2
3 4.2 4.8
3
4 5.5 6.4
5
6 8.5 9.6
5
9 10.5 14.4
7.5
10.5 13 16.8
10
12 18 19.2
15
18 24 28.8
20
24 32 38.4
25
32 38 51.2
3% 5%
Impedance Impedance
(mH) (mH)
Light Normal Light Normal
Duty Duty Duty Duty
3.6 14.918 8.102 24.863 13.503 Yes
5.04 8.102 6.077 13.503 10.128 Yes
6.6 6.077 4.050 10.128 6.75
10.2 4.050 2.700 6.75
12.6 2.700 2.315 4.5
15.6 2.315 2.025 3.858 3.375
21.6 2.025 1.35 3.375
28.8 1.35 1.01 2.25
38.4 1.01 0.76 1.683 1.267
45.6 0.76 0.639 1.267 1.065
7-18
Figure 7-20
Built-in
3% Input AC reactor
DC
Delta part #
reactor
Light
Normal Duty
Duty
DR003L0810* DR003L0810
DR003L0810 DR004L0607
Yes DR004L0607 DR006L0405
4.5 Yes DR006L0405 DR009L0270
3.858 Yes DR009L0270 DR010L0231
Yes DR010L0231 DR012L0202
2.25 Yes DR012L0202 DR018L0117
1.683 Yes DR018L0117 DR024LP881
Yes DR024LP881 DR032LP660
Yes DR032LP660 DR038LP639
Light Duty