Before you install the VFD, check the rating plate on the side to verify that the voltage, kW (horsepower), and output current ratings are correct for your application. See Figure 1, Table 1, and Selecting the Correct VFD68 Drive for Your Fan Motor.
Figure 1. Rating Plate
| Voltage | kW (Horsepower) | Dimensions, H x W x D, mm (in.) |
|
|---|---|---|---|
| B | 200–240 VAC, 50/60 Hz | 0.1 (1/8) | 128 x 68
x 81 (5 x 2-11/16 x 3-3/16) |
| C | 400–480 VAC, 50/60 Hz | 0.2 (1/4) | 128 x 68
x 113 (5 x 2-11/16 x 4-7/16) |
| D | 575 VAC, 60 Hz | 0.4 (1/2) | 128 x 68
x 133 (5x 2-11/16 x 5-1/4) |
| F | 0.75 (1) | 128 x
108 x 130 (5 x 4-1/4 x 5-1/8) |
|
| G | 1.5 (2) | 128 x
108 x 136 (5 x 4-1/4 x 5-5/16) |
|
| H | 2.2 (3) | 128 x
108 x 156 (5 x 4-1/4 x 6-1/8) |
|
| J | 3.7 (5) | 128 x
108 x 166 (5 x 4-1/4 x 6-1/2) |
|
| K | 5.5 (7-1/2) | 128 x
170 x 142 (5 x 6-11/16 x 5-5/8) |
|
| L | 7.5 (10) | 150 x
220 x 155 (5-15/16 x 8-11/16 x 6-1/8) |
|
| M | 11 (15) | 150 x
140 x 136 (5-15/16 x 5-1/2 x 5-5/16) |
|
| N | 15 (20) | 150 x
220 x 148 (5-15/16 x 8-11/16 x 5-13/16) |
|
| P | 260 x
220 x 190 (10-1/4 x 8-11/16 x 7-1/2) |
For example, a VFD68BGG would be rated for 200–240 VAC and 2 horsepower.
Important: Frequently starting and stopping the VFD shortens the lifespan of the
VFD68 drive. In applications where the drive will start or stop frequently, select a VFD
which has an output current rating that is 1.5 to 2 times greater than the FLA current
rating of the three-phase motor.