Delta IED-S Series User Manual page 83

Chapter 6 Optional Accessories | IED-S
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
increases 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:
Applicable Reactors (General)
200V–230V / 50–60 Hz (Single-phase power)
Rated
Model Current
(Arms)
IED022S21A 12
IED037S21A 17
200V–230V / 50–60 Hz (Three-phase power)
Rated
Model Current
(Arms)
IED055S23A 24
IED075S23A 30
IED110S23A 45
IED150S23A 58
Connecting an AC Output Reactor
Saturation AC Input
Current Reactors
(Arms) (mH)
24 1.172
34 0.574
Saturation 3% AC Input /
Current Output Reactors
(Arms) (mH)
48 0.507
60 0.32
90 0.215
116 0.162
6-10
AC Output
AC Input Reactors
Reactors
(Delta Part#)
(mH)
DR025D0117
DR049DP574
3% AC Input / Output
Reactors
(Delta Part #)
DR025AP507
DR025LP507
DR033AP320
DR033LP320
DR049AP215
DR049LP215
DR065AP162
DR065LP162
AC Output Reactors
(Delta Part #)
2.02 DR012L0202
1.17 DR018L0117
4% DC
4% DC Reactors
Reactors
(Delta Part #)
(mH)
1.17 DR025D0117
0.851 DR033DP851
0.574 DR049DP574
0.432 DR065DP432