1. CV controls in-sourcing Technical meeting
Alarms to CCC – operators interactions
Power failures handling
November 16, 2011

2. Alarms to CCC – Requirements
CCC operators notifications
Via Laser
A limited number of Laser alarms
Chosen by EN-CV, checked by CCC operators
Additional explanations for CCC operators in PVSS
Interaction for CCC operators: “Prise en compte”
Working hours vs non-working hours
New notification if new problem appears.
BUT no action on process for CCC operators

3. Alarms to CCC – Principle
A set of dedicated alarms objects – “Laser alarms”
Per function
“OR” of process alarms
Process alarms
Can be linked to interlocks and/or automatic actions
No interactions (Ack, Block, Mask…) for CCC operators
Laser alarms
Can be “blocked” by CCC operators
But not linked to automatic actions.
-> Demonstration on simulator
November 16, 2011

4. Alarms to CCC – Interactions
One-layer – summary
Two-layer – summary
November 16, 2011

5. Alarms to CCC – Reported information
Many possible source of alarms
But always a UNICOS alarm object for CV
Source of alarm for CCC
Process alarm status OR
Ack status OR
Both?
=> Shoud be generic
November 16, 2011

6. Power failure – Requirements
Go to fail safe state
Automatic and safe restart when power is back
Limited interruption for very short failure
Return in previous state
November 16, 2011

7. Power failure – Proposal
When Power cut is detected during 2sec:
Top Unit is in Temporary Stop
All dependent objects go to auto mode (except Forced objects)
Off Request is sent to all dependent units
All dependent units drive their actuators accordingly
All Option Modes are kept in units if they were set manually
All interlocks are maintained
When Power comes back:
Top Unit start again if it was On before
On Request is sent to all dependent units
November 16, 2011

8. Power Cut Example: Init state
Top Unit
(Manual On) M
Unit 1
Mode1
(auto)
Unit 2
(auto)
not ack
Unit 3
Mode3
(Manual Off)
Unit 4
Mode2
(Forced Off)
Unit 5
Mode 5
(auto)
Act. 1
Act. 2
Not ack M F
Unit 5.2
(Manual On)
Act. 1
Act. 5
Act. 7
Unit 5.1
(auto)
Act. 4 M
Act. 2
Act. 6
(Forced On) F
Act. 3
(Forced off)
Act. 8
(Manual Off) F
Act. 10 M
Act. 9
Act. 11
Not Ack
November 16, 2011

9. Power Cut Example: Power Cut
Temporary Stop
= Not Pr400VAC 2sec
Top Unit
(Manual On) M
Unit 1
Mode1
(auto)
Unit 2
(auto)
not ack
Unit 3
Mode3
(auto)
Unit 4
Mode2
(Forced Off)
Unit 5
Mode 5
(auto)
Act. 1
Act. 2
Not ack F
Unit 5.2
(auto)
Act. 1
Act. 7
Unit 5.1
(auto)
Act. 4
Act. 5
Act. 2
Act. 6
(Forced On) F
Act. 3
(Forced off)
Act. 8
(auto) F
Act. 10
Full Stop Interlock
During Power Cut
(discordance)
Act. 9
Act. 11
Not Ack
November 16, 2011

10. Power Cut Example: Power is back
Top Unit
(Manual On) M
Unit 1
Mode1
(auto)
Unit 2
(auto)
not ack
Unit 3
Mode3
(auto)
Unit 4
Mode2
(Forced Off)
Unit 5
Mode 5
(auto)
Act. 1
Act. 2
Not ack F
Act. 1
Unit 5.1
(auto)
Unit 5.2
(auto)
Act. 4
Act. 5
Act. 7
Act. 2
Act. 6
(Forced On)
Not ack. F
Act. 3
(Forced off)
Act. 8
(auto) F
Act. 10
Act. 9
Act. 11
Not Ack
November 16, 2011