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Part 2: Interfacing and Configuring
SECTION 2.4
Logic Interface and Connection
Optically Isolated Logic Inputs
The Microstepping MForce PowerDrive has three optically isolated logic inputs which are located on connector
P1. These inputs are isolated to minimize or eliminate electrical noise coupled onto the drive control signals. Each
input is internally pulled-up to the level of the optocoupler supply and may be connected to sinking or +5 to +24
VDC sourcing outputs on a controller or PLC. These inputs are:
1] Step Clock (SCLK)/Quadrature (CH A)/Clock UP
2] Direction (DIR)/Quadrature (CH B)/ Clock DOWN
3] Enable (EN)
Of these inputs only step clock and direction are required to operate the Microstepping MForce PowerDrive.
Isolated Logic Input Pins and Connections
The following diagram illustrates the pins and connections for the Microstepping MForce PowerDrive family of
products. Careful attention should be paid to verify the connections on the model Microstepping MForce Power-
Drive you are using.
Isolated Logic Input Characteristics
Enable Input
This input can be used to enable or disable the driver output circuitry. Leaving the enable switch open (Logic
HIGH, Disconnected) for sinking or sourcing configuration, the driver outputs will be enabled and the step
clock pulses will cause the motor to advance. When this input switch is closed (Logic LOW) in both sinking
Figure 2.4.1: Isolated Logic Pins and Connections
Pin 3: Opto Supply
Pin 5: Enable
Pin 4: Step/Clock
Pin 6: Direction
Inputs Configured as Sinking
+5 to +24VDC
Inputs Configured as Sourcing
Controller I/O
Ground
Pin 3
Pin 3
Содержание MForce PowerDrive Plus MForce Series Microstepping PowerDrive
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