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Selecting Other System Components
I/O Interface
Analog Input
One analog input channel is accessible to the user. The analog input limits the peak current available from
the drive.
•
I LIMIT (current limit)
The analog signal must be within 0-10 Volt range and single-ended.
If this signal is not provided, the peak current of the drive may be set in software through the Drive
Parameter window.
Analog Output
One analog output channel may be defined by the user through software:
•
ANALOG is a ±10 Volt signal. The allowable current draw of the load is ±2 mA
This analog output is designed for monitoring purposes only. This signal should not be used for control
purposes due to the relatively high ripple voltage (1%).
Digital Inputs
Control Inputs
One optically isolated, single ended, active high, dedicated control input provides the controller ENABLE
function. This input operates with switch closure or sourcing type transistor outputs.
The current rating is 10 mA maximum.
Selectable Inputs
Four optically isolated, single ended, active high inputs (INPUT1, INPUT2, INPUT3 and FAULT
RESET) support logic type interfaces. The input circuits operate with switch closure or sourcing type
transistor circuits.
The current rating of each input is 10 mA maximum.
Digital Outputs
Control Outputs
Two normally open relays are dedicated control outputs to the following signals:
•
BRAKE/DRIVE ENABLED
•
DRIVE READY.
The current ratings of each relay is 1 Amp at 30 VDC.
If using a motor with the 90VAC brake option, a user-provided relay may be driven by these outputs up
to the specified levels. Refer to "BRAKE/DRIVE ENABLE Application Exampl" for information about
the necessary hardware connections. Consult the I/O Configuration in the on-line OMNI LINK help for
additional information about the software parameters.
TIP
NOTE: Power for the I/O must be supplied by an external
12 - 24 VDC power source.
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