Advanced Energy Pinnacle 20 kW Manual page 104

Advanced Energy
Table 4-18. Host Port Commands
Command
79
TCC enable
4-70
Page 104 of 182
®
Description
Enables or disables TCC. Enabling the
TCC places setpoint and arc handling
under microprocessor control, letting you
achieve fast, automated target
conditioning. Before enabling TCC,
ensure that you have first entered a
setpoint. When TCC is enabled and the
unit receives an on command, the
microprocessor sets the arc detect time to
20 ms and initiates a series of trials ("the
TCC algorithm") to reach your desired
setpoint ("the final setpoint"). To begin,
the microprocessor sets an initial setpoint
equal to 50% of the final setpoint. After
100 ms, the microprocessor checks the
output level and sets a new interim
setpoint equal to 125% of the output
level. The microprocessor continues to
check the output level and to set a new
interim setpoint (always 125% of the
output level) every 100 ms until the
output is equal to 80% of the final
setpoint. When 80% of the final setpoint
is reached, the interim setpoint is set
equal to the final setpoint, and the TCC
algorithm ends. Send 1 data byte (an 8-bit
value):
• 0 = disable
• non-zero value = enable
Read back this value with Command 163.
I/O Communication and Control
Number of Number of
Transmit Response
Data Bytes Data Bytes
1 CSR only
5702199-A