Technical information

36
230V FX Series Positioning Drive Reference Manual
Figure 24: Customer Supplied Interface to the Command Connector
Pulse Modes (Pulse/Pulse or Pulse/Direction)
In Pulse mode, the FX drive responds to a serial pulse train representing externally generated
incremental position change commands. This mode is commonly used to control stepper
motors or Computer Numeric Controlled (CNC) machinery. The Pulse/Pulse or Pulse/
Direction modes convert pulse inputs to velocity and distance.
Pulse/Pulse
With the Pulse/Pulse option, two inputs are configured for clockwise and counterclockwise
pulses. Pulses on the CW pulse input line cause the motor shaft to rotate CW, and pulses on
the CCW pulse input line cause CCW rotation of the motor shaft.
Pulse/Direction
The Pulse/Direction option uses the same input lines; however, the CW input line is
configured for the control pulses, and the CCW input line is used to control the direction. If
there is no current flowing in the direction input, pulses on the pulse input line will cause
CCW rotation.
Figure 25: Pulse Mode Example of Sinking/Source Connections
FX DRIVE
-12
VDC
+12
VDC
CUSTOMER SUPPLIED
INTERFACE
(+) COMMAND
ANALOG GND
13
7
FX DRIVE
COMMAND
CONNECTOR
EXAMPLE: (+) COMMAND
FX DRIVE
-12
VDC
+12
VDC
CUSTOMER SUPPLIED
INTERFACE
(-) COMMAND
ANALOG GND
13
6
FX DRIVE
COMMAND
CONNECTOR
EXAMPLE: (-) COMMAND
+12
-12
+12
-12
-
+
-
+
-
+
-
+
EXTERNAL
LOGIC
CUSTOMER SUPPLIED INTERFACE
4
FX DRIVE
COMMAND
CONNECTOR
EXAMPLE: SINKING CONNECTION
-
+
R1
R2
CCW PULSECW PULSE
SHLD
2
5
3
CW
CCW
-
+
-
+
EXTERNAL
LOGIC
CUSTOMER SUPPLIED INTERFACE
4
EXAMPLE: SOURCING CONNECTION
-
+
CCW PULSECW PULSE
SHLD
2
5
CW
CCW
-
+
-
+
3
SINK
SINK
SOURCE
SOURCE
FX DRIVE
COMMAND
CONNECTOR