Applied Motion BLuDC4-Q - Manual (Page 16)

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Connecting to Indexer with Differential Outputs
(Many High Speed Indexers have Differential Outputs)
BLU
Servo
Drive
DIR+ DIR+
DIR- DIR-
STEP+
STEP-
STEP+
STEP-
Indexer
with
Differential
Outputs
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.
BLU Servo
Master
Encoder
GND
DIR-
DIR+
STEP-
STEP+
GND
B-
B+
A-
A+