Communications and I/O
3 - 4
MedWeld 5000 Technical Reference Manual
M-032170
PARITY Input
The control will recognize only an ODD number of BINARY
SELECT inputs. If the schedule to be operated requires closure of
an even number of BINARY SELECT inputs, the PARITY Input
must also be closed to provide the required odd number of inputs.
This arrangement helps to prevent possible malfunctions if a
required input should fail to close.
WELD/NO WELD Input
This is a Weld Input to the control. With this input closed (HIGH),
the control is in Weld Mode. If this input is open, the control is in
No Weld Mode.
With this input open (No Weld Mode), the control will turn on the
NO WELD Output and no weld current will flow.
NO STROKE/NO WELD Input
When this input is active, the control is in No Stroke/No Weld. This
tells the weld control to cycle without supplying current and
without turning on the valves. This input affects the weld valves
only. It does not affect any other outputs.
CONTROL STOP Input
This is a normally HIGH input. When this input goes LOW (de-
activated) the control aborts the current schedule, generates a
CONTROL STOP Fault, de-activates the NO FAULT Output and
will not initiate another schedule until this input goes HIGH.
TRANSFORMER OVER-TEMPERATURE Input
This input tells the state of the cooling system. It is provided as an
external welding transformer over-temperature switch. If not used,
this input must be jumpered HIGH.
If this input is not active when the control receives a schedule
initiate, a SYSTEM COOLING Fault will be generated, and the NO
FAULT Output will be de-energized.
A SYSTEM COOLING Fault also occurs if a weld schedule
contains Function #79 (WAIT nnn CY FOR SYSTEM COOLING),
and this input does not become active within the number of cycles
specified.
SCR THERMAL SWITCH Input
This input to the timer unit indicates that an SCR has reached an
over-temperature condition. It also acts as a ready to weld (RTW)
signal from the regulator board to the inverter assembly.
If this input is not active when the control receives the signal to
initiate a weld schedule, the timer unit generates a SYSTEM
Summary of Contents for MedWeld 5000
Page 2: ...MedWeld 5000 Technical Reference Manual Modified 1 31 06 M 032170...
Page 6: ...MedWeld 5000 Technical Reference Manual Modified 1 31 06...
Page 38: ...Installing the MedWeld 5000 2 12 MedWeld 5000 Technical Reference Manual M 032170...
Page 82: ...Advanced Software Features 5 12 MedWeld 5000 Technical Reference Manual M 032170...
Page 120: ...Hardware Troubleshooting 9 10 MedWeld 5000 Technical Reference Manual M 032170...
