Weld334m - User’s manual
F356-IOE I/O Expansion Card
45
P24 . Functional description of input signals
Pin Signal Function
5 SALDASI
Weld Yes.
Active at +24V.
It enables the welding current. Also the following functions are to be
active: Weld Yes in the Setup stage* and the selector located on the
front of IOB card.
The control device activates the
Status output
(+24V) when the
Weld Yes function is enabled.
* See programming manual.
6 SOLOPR
Pressure only.
OFF active.
It is used for the gun setup.
Usually at 24V, if it is open during the welding sequence, the following
occurs:
•
The sequence is interrupted. Electrodes are closed and under
pressure.
•
The control device waits for 24V signal on this input
•
The RICHSALD output is low
If the Start signal is released, the call is interrupted and the gun
opens.
If SOLOPR goes high, the sequence is resumed, the control device
makes the RICHSALD output go high and the process continues
according to the status conditions of SALDASI (WELDYES) and
CONSALD (CONS.TO WELD.) functions.
7 RESASA
Stepper A alarm counter reset.
Active at +24V.
It clears the counter of spots active on channel A, if no dressing or
electrodes change is active.
8 RESASB
Same as RESASA but for channel B.
9 RAVOK
Validation of Dressing done.
Active at +24V.
This input is to be activated when the electrode dressing has been
done (further to the Request for Dressing Signaling).
It inhibits the alarm signaling, sets the welding spot counter to zero
and increments, by one unit, the counter for dressing operations done
in the electrodes wear program.
10 CHGEOK
Validation of electrodes change done.
Active at +24V.
This input is to be activated when the electrode dressing has been
done (further to the Request for Electrodes Change Signaling)
It inhibits the alarm signaling and sets to zero all counters of stepper
concerned.
11
12
13
14
15
16
CODE0
CODE1
CODE2
CODE3
CODE4
CODE5
Active at +24V.
Inputs reserved for the selection (with binary code) of the welding
program to initialise at Start.
When the Start function is active, the control device reads the active
code on these inputs and performs the relevant program (see list of
codes on page 47).
Facility to use up to 64 welding programs.
IMPORTANT: To select program 64, all inputs of program codes are to
be 0V logic.
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