Entron iPAK2

iPAK2 User Guide
38
5. Input/Output (I/O)
Inputs and output signals which are used to operate the control can be taken from a number of
sources:
 Discrete connections
 Modbus messages
 EtherNet/IP
The I/O Source configuration parameter selects which interface is active.
5.1. Inputs
Input AWS
designation
Description
Start FS1 When this input is activated a weld
sequence begins. If the input is removed
during the Squeeze interval the sequence
is aborted. If the input is maintained
through the Squeeze interval but switched
off subsequently, the sequence terminates
normally.
Weld on
1
NW1 This input enables the weld current. If this
input is inactive a weld sequence will not
produce any current.
Stop
1
ES1 Sequencing is inhibited or aborted if this
input is not active.
Thermal
2
TT1 This input is usually connected to a
normally closed thermal contact attached
to the weld transformer. Sequencing is
inhibited if this input is not active.
2
nd
stage PS1 If enabled, iPAK2 checks that the 2nd
Stage signal is present before proceeding
to weld. The checking is programmable to
take place either before or after the
Squeeze interval. If the signal is not present
iPAK2 waits for the signal before it
proceeds. If the Start signal is removed
while waiting, the sequence is aborted.
Retract RT1 This input is used to control the Retract
function.
Reset fault FR1 This input resets the Fault output and clears
the status messages. Only momentary
application is required (minimum time
40ms).
Reset counter /
tip dress acknowledge
3
Used to reset the counter(s) or
acknowledge a tip dress request.
Reset stepper
4
SR1 Used to reset the stepper(s).
P1 BP1 Program select inputs. Weld program
selection is made by applying the binary
code for the required program. Programs 0
to 127 can be selected via the discrete
interface. Programs 0 to 255 can be
selected internally, via Modbus or via
EtherNet/IP.
If the ‘key-switch’ security option is
selected, then input P64 (on the discrete
interface only) is not available. In this case,
programs 0 to 63 can be selected
(programs 64 to 255 can still be selected
internally or via the fieldbus).
P2 BP2
P4 BP4
P8 BP8
P16 BP16
P32 BP32
P64 / Edit enable
5
BP64
P128 BP128