General Information and Ratings 2-1
CHAPTER 2
General Information and Ratings
The VS1MD is a variable frequency PWM drive capable of operating in open-loop,
volts-per-hertz mode and in a sensorless vector control (SVC) mode.
This chapter contains information about the VS1MD drive, including how to identify
the drive.
2.1 Identifying the Drive by Model Number
Each drive can be identified by its model number, as shown in figure 2.1. The model
number is on the shipping label and the drive nameplate. The model number includes
the drive and any options.
Drive model numbers for the VS1MD drive are provided in table 2.1.
Figure 2.1 – Identifying the Drive by Model Number
VS1 MD 4 10
HP
0P5 = 0.5HP
1 = 1HP
2 = 2HP
3 = 3HP
5 = 5HP
7 = 7.5 HP
10 = 10HP
Voltage:
2 = 230V
4 = 460V
Family
MD = Microdrive
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