Entron iPAK2 - Inputs and Outputs

Section 3 Inputs and outputs 19
Inputs and outputs
iPAK2 uses a number of inputs and outputs to control and monitor the weld sequence.
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 NW1 This input enables the weld current. If this input is inactive a weld sequence will
not produce any current.
Stop ES1 Sequencing is inhibited or aborted if this input is not active.
Thermal 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
1
Used to reset the counter(s) or acknowledge a tip dress request.
Reset
stepper
2
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 (programs
128 to 255 can still be selected internally or via the fieldbus).
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 BP64
Toroid Input for the toroid. Resistance must be in the range 10 to 300 Ohms.
Analog 0 to 10 V analog input. Can be used to monitor a proportional air regulator valve
output or other sensor for force control and monitoring.
Also used as the control
input in ANALOG mode.