Installation Manual

Control Wiring
9000X AF Drives MN04001004E—May 2011 www.eaton.com 27
Inverting the Digital Input Signal
The active signal level depends on which potential the
common inputs CMA and CMB (terminals 11 and 17)
are connected to. The alternatives are either +24V or
ground (0V). See figures below.
The 24V control voltage and the ground for the digital inputs
and the common inputs (CMA, CMB) can be sourced from
either the internal 24V supply or an external supply.
Positive Logic
Positive logic (+24V is the active signal) = the input is active
when the switch is closed.
Negative Logic
Negative logic (0V is the active signal) = the input is active
when the switch is closed.
DIN1
+
24V
DIN2
DIN3
CMA
Ground
DIN1
Ground
DIN2
DIN3
CMA
+
24V