Theta Controller
Programming
11
Overcurrent Fault!
There are two things that can cause this hardware fault:
a)
GFI – the Ground Fault Interrupter has exceeded its
current trip point. A current detector monitors the current
through the three phases of the motor and asserts this fault
when the total current applied to the tool does not equal the
total current returned from the tool. All phases are turned
off immediately to protect the controller from shorts at the
tool end.
b)
Total Current – the controller software limits the current
applied to any tool based on what the tool can handle. This
fault is asserted if there is a short at the tool end and the
total current applied is greater than allowed.
Logic Voltage Fault!
The controller monitors the +5VDC, -5VDC and +12VDC of its
onboard Power Supply. This fault is asserted when those voltages
fall outside of nominal range.
Position Feedback Fault!
The controller is constantly monitoring the resolver zero and span
points and asserts this fault if they go outside specification.
Transducer Span Fault!
This fault is asserted when the transducer zero point has shifted far
enough to prevent a full scale reading from the transducer.
Temperature Fault!
This fault is asserted when the tool temperature detector has
reached the temperature limit set by the Temperature Limit
parameter. It resets after detected temperature has dropped by 5°C.
Unrecognized Tool!
The controller is communicating to the tool but does not recognize
the model number written in the tool memory board.
Tool Communications!
The controller is not communicating to a tool.
Transducer Current Fault
Transducer current has fallen outside nominal values. For E series
tools that is 15.74 mA +/- 75% (4.5 – 26mA). For EA series tools
that is 4.16 mA +/- 75% (1 to 7mA).
Transducer Zero Fault!
The transducer zero point has shifted too far for the controller to
compensate. These points are visible on the controller diagnostics
screen under Analyze.
Unsupported Tool!
The wrong tool type has been connected to the controller. The
Theta controller cannot run the tool that is connected.
2.7
Messages
Messages appear on the screen when certain non-critical conditions exist that asserts the warning.
They may appear on any screen at any time.
Communication Fault
Used for Toyota Protocol only. Controller has lost
communications to the PI box.
Count Fault
Used for Toyota Protocol only. Controller and PI box have a bolt
count mismatch.
Program Fault
Used for Toyota Protocol only. More tightening cycles were
performed than the PI box expected.
Tool Update Failed
Controller failed to update the tool configuration.
Nothing to Configure!
The parameter selected has nothing to configure.
