Rockwell Automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC - Manual (Page 40)

32 Installation
Voltage or current follower
Instead of using a speed adjust potentiometer, these DC3N
series drives may be wired to follow an external input
signal (see Figure 8 on page 31 for connections). This input
signal can be in the form of voltage (0-10 VDC) or current
(4-20 mA). Because these drives have built-in isolation, the
input signal can be either grounded or ungrounded. The
signal slide switch SW504 must be set for current or
voltage input, depending on the input signal type (see Slide
switches section on page 33).
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