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NI 9505E Operating Instructions and Specifications
20
ni.com
When connecting the encoder wiring to the NI 9505E, use shielded
wire of at least 24 AWG. You must use cables with twisted pairs
and an overall shield for improved noise immunity. Refer to
Figure 5 for a connection example.
Note
Using an unshielded cable may produce noise,
which can corrupt the encoder signals and cause lost
counts, reduced accuracy, or other erroneous encoder and
drive operation.
Emergency Stop Signal
The E-Stop signal is an input to the drive from an emergency stop
switch. Figure 10 shows a simplified schematic of the emergency
stop input circuit. When the emergency stop switch is closed,
current flows through the circuit, and the drive is enabled. When
an external event activates the emergency stop switch, the switch
opens and current stops flowing, disabling the drive. The E-Stop
functionality is disabled by default. Refer to the
NI 9505 Reference
Help
book in the
LabVIEW Help
, available by selecting
Help»
Search the LabVIEW Help
, for information about how to enable
this signal using the
Enable E-Stop
Property.