Applied Motion ST10-Plus - Manual (Page 12)

12
ST5/10-S Hardware manual 920-0027 Rev. D
2/7/14
Connecting to PLC with Sourcing (PNP) Outputs
(Most PLC’s use 24 volt logic)
Drive
+12-24V
GND DIR-
OUT1 DIR+
STEP-
OUT2 STEP+
PLC
with
Sourcing
Outputs
R
R
Wiring for Encoder Following
Using High Speed Inputs with 12-24 Volt Signals
Most PLCs don’t use 5 volt logic. You can connect signal levels as high as 24 volts to the STEP and DIR inputs if
you add external dropping resistors, as shown below.
• For 12 volt logic, add 820 ohm, 1/4 watt resistors
• For 24 volt logic, use 2200 ohm, 1/4 watt resistors
The maximum voltage that can be applied to an input terminal is 24 volts DC. Never
apply AC voltage to an input terminal.
Drive
Master
Encoder
DIR-
DIR+
STEP-
STEP+
B-
B+
A-
A+