American Control Electronics Minarik DRIVES RG500 Series, User Manual, Page: 29 / 72

20
RG500 Series
Analog Input Signal
Instead of using a speed adjust potentiometer, the drive may be wired to
follow an analog input voltage signal that is isolated from earth ground
(Figure 9). Connect the signal common (–) RB1. Connect the signal input
(+) to S2. A potentiometer can be used to scale the analog input voltage.
An interface device, such as Minarik Drives model PCM4, may be used to
scale and isolate an analog input voltage.
An isolated analog input voltage range of -10 to 10 VDC is required to
produce an armature voltage range of -90 to 90 VDC with 115 VAC line
voltage or -180 to 180 VDC with 230 VAC line voltage.
S3
S2
S1
S0
RB1 (-)
RB1
S2 (+)
Signal Common
Signal Reference
Figure 9. Analog Input Signal Connections