OM-229 158 Page 30
SECTION 9
−
DIAGNOSTICS & TROUBLESHOOTING
The Toccotron AC power source has on-board capabilities to aid in troubleshooting problems should any conditions occur during operation. This
troubleshooting capability consists of the Fault LED, Limit LED, and message screens that appear on the front panel LCD display.
9-1. Operator Interface Indicators
1
Fault LED
LED lights to indicate a system fault
condition.
2
Limit LED
LED lights to indicate a system limit
condition.
3
4 x 40 LCD Display
Displays programming, run status, param-
eters, fault and limit conditions, and
troubleshooting guide.
804 599-A
3
2
1
9-2. Limit Conditions
A limit condition indicates that the system is outside the range of its optimum operating conditions or parameters. Should a limit condition occur during
operation, the yellow Limit LED will flash to indicate a problem. If the active screen on the LCD display is Run Status or Parameters, a message describ-
ing the particular limit condition will appear on the display. If the active screen is Program, press the Run Status
button to display the limit
condition.
In a limit condition, the power source will continue to deliver output power and protect itself from damage by reducing the output power. This situation
allows the operator time to determine the best action to correct the problem as described by the limit message on the LCD display.
If a limit condition occurs, there are two selectable options:
Acknowledge the limit and continue operation.
Terminate operation to correct the problem causing the limit.
