National Instruments NI 9475 - Manual (Page 12)

NI 9475 Operating Instructions and Specifications 12 ni.com
overcurrent condition occurs. A channel LED may be on even if the
channel is off because of an overcurrent condition. To determine if
the channel is in an overcurrent state, measure the voltage between
DO and V
sup
. If the voltage is equal to the voltage of the external
power supply connected to the module, the channel is in an
overcurrent state.
Resetting Channels After an Overcurrent Condition
After you have determined and fixed the cause of the overcurrent
condition, reset the channel by turning it off. For more information
about writing to output channels, refer to the software help. Visit
ni.com/info and enter cseriesdoc for information about
C Series documentation. Alternatively, you can disconnect the
external power supply from the module. However, doing so
disconnects power from all of the module channels. Normal
operation can resume after you correct the overcurrent condition
and reset the channel.
Sleep Mode
This module supports a low-power sleep mode. Support for sleep
mode at the system level depends on the chassis that the module is
plugged into. Refer to the chassis manual for information about