16
MMRG Series
Analog Input Signal (MMRG-PCM models)
Instead of using a speed adjust potentiometer, the drive may be wired
to follow an analog input voltage signal that is isolated or non-isolated
(Figure 5). Connect the signal common (–) to terminal COM. Connect the
signal input (+) to terminal POS. A potentiometer can be used to scale the
analog input voltage. Connections can be made to either the spade plug
terminals or to cage clamp terminal TB501.
An 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.
DIR
NEG
COM
POS
DIR
COM
POS
NEG
TB501
T502
T501
DIR SWITCH
NEG (-)
POS (+)
OPEN OR CLOSE
TO CHANGE DIRECTION
0 to ±10 VDC
VOLTAGE SIGNAL
INPUT
FAST-ON TERMINALS
PARALLEL TB501
Figure 9. MMRG-PCM Analog Input Signal Connections
