WTC MedWeld 3005, Operator'S Manual

Page: 70 / 206

3_]]e^YSQdY_^cQ^T9?
#& =UTGU\T# %?`UbQd_bµc7eYTUD)## "
= #" "%1`bY\" "
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.