1. Local Protection of Insertable Devices
Julen Etxeberria Malkorra
ICS/HW&I
22 May 2019

2. Table of contents Purpose ECMC system Collision avoidance system
Temperature protection 2

3. 1. Purpose
Two main sources of damage have been identified, mechanical damage and thermal damage.
1- Local collision avoidance system
”Avoid collision between insertable devices”
2- cooling system
Is the cooling system OK?
Is the temperature OK? 3

4. 2. ECMC System 4

5. 3. collision avoidance system
“If one axis is in movement the other one must be in the parking position” 5

6. 3. Collision avoidance system
3 layers of security to avoid collision
3.1 Soft interlock
3.2 Hard interlock:
Beckhoff HW
Cross relays 6

7. 3.1 SOFT Interlock
The idea is to cut the amplifier of the driver via software when the other axis/axises are in movement.
PLC code implementation (ECMC)
SNL programme (Channel Access)
Phyton code (Channel Access)
SLIT collision avoidance via EPICS (ECMC) 7

8. 3.2 Stepper motor terminal
The stepper motor terminal has got two inputs, this inputs can be configured to enable/disable the amplifier in the stepper terminal. 8

9. 3.3 Cross relays
It consists in relays cross-connected to the extra switches. These switches are connected to the relays mounted on the back of the crate. Connected in a way that if one axis is moving the other will be without power. 9

10. Example 10

11. Example 11

12. 4. Temperature Is the cooling flow running? → Digital input to ECMC
Is the temperature OK? → PT100/ Thermocuople type K
OK/NOK? → Digital Output to MPS system 12

13. 5. Next Steps -PLC code test -SNL implementation:
-Homing sequence when IOC boots 13

14. 6. QUESTIONS
THANK YOU!! 14