Desoutter CVI3 Function, User Manual, Page: 24 / 44

Appendix - I/O and events_02/2017 - 24 -
2 - LOGICAL INPUTS
Name Description Status
General commands
Start stop Tightening
on state
Initiates a fastening cycle if:
- the "Spindle validation forward" is active and required by the Tightening Unit,
- a Pset is selected.
A rising edge must be detected to initiate a tightening, that is the change in the state of the
tool from off to on as the trigger is released, then pressed again must be detected. For the
tightening to proceed, this input must remain active. If this input becomes inactive at any
time during the tightening, the tightening will be aborted and the tool will stop running.
At the end of tightening, a tightening can began only if signal falls and then rise.
After power-up, even if this signal is active, an edge is necessary to start tightening."
State
Toggle start stop
tightening on edge
This input is enabled for fixed tools only (tools without trigger).
Initiates or ends a fastening cycle.
A cycle can be initiated only if:
- the "Spindle validation forward" is active and required by the Tightening Unit
- the Pset is selected
If no tightening is currently executed, a rising edge will initiate a tightening.
A falling edge has no effect on the tightening to proceed.
If a tightening is in execution, a rising edge will stop it.
Rising edge
Reverse direction When activated, the tool green & red lights are flashing to indicate that the Tightening Unit
reverse direction is selected.
This signal status is not controlled during a tightening but only when tool is not running.
State
Error acknowledge Enables the "Reject lockout" function. When locked out, the tool cannot run until this input
is reset.
Rising edge
Reset When input reset raises (and there is no cycle running):
- defaults are acknowledged
- batch counter of current Assembly Process is reset
- reports lights on controller and tool are set off
- result on display is erased but the last 5 result values on Vision display stay readable
- in Pset mode, Pset selected remains unchanged. In AP mode, AP is aborted.
- ready output stay on
- echo identifier is reset
When input reset raises (and there is cycle running):
- tightening is immediately stopped
- defaults are acknowledged
- batch counter of current Assembly Process is reset
- at tightening end, there is no report generated.
- at tightening end, it is impossible to start a new tight, reset input must be released first.
- in Pset mode, Pset selected remains unchanged. In AP mode, AP is aborted.
- ready output stay on
- echo identifier is reset
State
Reset only status When the input "Reset" raises during the Pset running:
- tightening is immediately stopped
Resets only:
- Tightening OK/NOK/finished
- Tool OK/NOK
- Batch OK/NOK/Finished
The Assembly Process is not aborted.
Result values (angle, torque) are still present in Fieldbus.
LEDs on tool and controller are not affected.
State
Ack error message Acknowledge error message displayed on HMI. Rising edge
Force Pset mode Forces the Tightening Unit to switch in Pset mode in order to temporary run Psets (nothing
saved).
When AP mode + input state high, then switch to Pset mode.
When Temporary Pset mode + input state low, then switch to AP mode.
Switching on the controller power with the input set will switch to Pset mode.
Other cases do nothing.
State
Ack result Acknowledges the current result.
The tool is then unlocked and can tight again. Formerly dedicated to Fieldbus only, this
behaviour is now also available for IOs and Open Protocol.
Rising edge
Keep alive Input used to check that the controller is still alive.
State of this input is copied to "Keep alive ack" output.
This input is also used by a PLC to inform the controller that Fieldbus communication is
working.
State
Time Synchro Trigger Execute date & time synchronisation from Fieldbus (SYN in VWXML protocol) Rising edge