8 basic wiring recommendations, 8 basic wiring recommendations -7, Toshiba – Toshiba VF-SX User Manual
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TOSHIBA
5-7
Radio Freouencv Interference
During operation of the drive there may be noise generated by the drive in the
frequency range associated with radio transmission signals. This noise may
adversely affect sensitive electronic equipment near the drive. If this
condition persists install a RF/EMI (Radio Frequency or Electromagnetic
Interference) filter on the input to the drive. Shield the motor leads in
metallic conduit. These steps will reduce radio frequency interference.
Contact Toshiba for details, or see Chapter 15.
WARWIH6:
Do not operate or energize the inverter before checking between the motor and the
inverter for mis-wiring or short circuits in the motor. Do not operate the drive
if the motor is shorted. Do not ground the neutral point of the motor star
winding.
5.8 Basic Wiring Recommendations
TABLE 5-1: BASIC WIRING RECOHMENOATIONS
DRIVE MODEL VFSX- 2001UP 2002UP 2004UP 2007UP 2015UP12022UP12037UP1 1
KW RATING
0.1
0.2
0.4
0.75
1.5
2.2
3.7 1
HP RATING
1/8
1/4
1/2
1
2
3
5 j
MCCB SIZE
5 A
5 A
5 A
10 A
15 A
20 A
30 A 1
HC AMPS (1)
12 A
12 A
12 A
12 A
12 A
12 A
18 A 1
OL RELAY RATING
0.7 A
1.3 A
2.3 A
4.2 A
6.6 A
9.3 A
15 A 1
POWER WIRE SIZE
12 GA
12 GA
12 GA
12 GA
12 GA
12 GA
10 GA 1
CONTROL WIRE SIZE 18 GA
18 GA
18 GA
18 GA
18 GA
18 GA
18 GA 1
WIRE SIZE FOR
REGENERATIVE
BRAKING RESISTOR
N/A
N/A
14 GA
14 GA
12 GA
12 GA
12 GA 1
NOTES:
1
.
2
.
3.
4.
Always use a surge suppression device on the coil of the MC contactor.
Use shielded cable on control circuits. See Figure 5.2.
Use 10 gauge wire or larger for ground circuit.
Power wire sizes in table above are minimum size. For cable lengths over
100 feet, or where voltage drops may cause application problems, larger
wire may be required.