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5.4.5 Setting the drive enable output (optional, local axes only)
Note: In many applications, a drive amplifier will have its drive enable input activated
by other circuitry (often including an emergency stop switch) so a physical drive
enable signal from the NextMove e100 is not required.
A drive enable output should not be used for remote drives connected by EPL to
the NextMove e100; see section 4.3.1.2 on page 4-7.
A drive enable output allows NextMove e100 to enable the external drive amplifier to allow
motion, or disable it in the event of an error. Each axis can be configured with its own drive
enable output, or can share an output with other axes. If an output is shared, an error on any
of the axes sharing the output will cause all of them to be disabled. The drive enable output
can be either the relay or a digital output.
For a remote axis (e.g. MicroFlex e100), a physical drive enable connection from the
NextMove e100 may not be required. The remote axis' drive enable input can be wired to
external safety stop circuits to provide a fail-safe method for disabling the drive, while in
normal operation commands over the EPL network can be used to enable/disable the drive.
1. In the Toolbox, click the Digital I/O icon.
2. At the bottom of the Digital I/O screen, click
the Digital Outputs tab.
The left of the screen shows yellow High
and Low icons. These describe how the
output should behave when activated (to
enable the axis).
3. If you are going to use the relay, ignore this
step and go straight to step 4.
If you are going to use a digital output, the
active level must be set. Drag the
appropriate yellow icon to the grey OUT
icon that will be used as the drive enable
output.
In this example, OUT1 is being used, and is
being configured as active high.
The icon's color will change to bright blue.
MN1941WEN
Operation 5-19
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