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Model T940 User Manual
Publication No. 980938 Rev. K
Soft Front Panel Operation 5-118
Astronics Test Systems
Channel Drivers
This pull-down control programs the channel drivers.
The selections for this pull-down control are:
Table 5-86: Channel Drivers Settings
Setting
Description
Disabled
All the channel drivers are forced off
(disabled).
Enabled
Channel drivers in normal mode. Level
and state are determined by pattern code
and channel parameters and properties.
Note: The following events can cause force the drivers to be disabled:
•
A Watch Dog Timeout, if enabled to do so
•
A local or DRS global over-current event, if enabled to do so
•
A local or DRS global drive fault event, if enabled to do so
•
A channel over-voltage event for Driver/Receiver modules employing this
feature.
The relevant VXI
plug&play
API function is:
•
tat964_setDriverEnable
V+/ V-
This control allows power to be applied to those D/R boards which require power.
It also enables the isolation relays to be closed if they’re designated to be closed
by the Connect State.
Note: The following Driver/Receiver Event will automatically force the V+ and V-
power switch off (or not allow it to be turned on) protecting the module pin
drivers.
•
V+ too high
•
V- too low
•
V+/ V- Delta too great
•
Temperature Fault detected
•
OVP detect
(DR3e, DR9 and UR14)
A ground fault or I
2
C Error will not shut the V+ and V- off.
The relevant VXI
plug&play
API function is:
•
tat964_setPowerConnect
Execute Idle Step
This control sets the idle step number for the
Idle
command button operation.