User guide

CME 2 User Guide Digital Inputs and Outputs
Copley Controls 63
Non-Latched vs. Latched Custom Event Digital Outputs
Like an amplifier fault, a custom-configured output can be non-latched or latched.
If a non-latched, custom-configured digital output goes active, it goes inactive as soon as
the last of the selected events is cleared.
If a latched output goes active, it remains active until at least one of the following actions
has been taken:
Power-cycle the amplifier
or
Cycle (disable and then enable) an enable input that is configured as
Enables with Clear Faults or Enables with Reset.
or
Access the CME 2 Control Panel and press Clear Faults or Reset.
Custom Event Output Fault Handling vs. Overall Fault Handling
A fault on an output programmed for Custom Event is separate from a fault on the
amplifier. For instance, suppose:
 OUT3 has a Custom Event configuration. Only the Under Voltage fault condition is
selected, and the output is latched.
 Under Voltage is not latched on the Configure Faults screen.
An under voltage condition occurs, and the amplifier goes into fault condition, output
stages are disabled, and faults are reported. At the same time, OUT3 goes active.
The under voltage condition is corrected, and:
 The amplifier fault is cleared. Output stages are enabled.
 OUT3 remains active.