D397-50-880 Issue C
Page 38 © Edwards Limited 2010. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Operation
4.8.29 Software module 923 - Heater band
General Description
Control, set-up and monitoring of the Heater band control output.
Output bytes (from Master)
Note: Manual control is only available when the turbo pump has reached ’normal speed’ and either the heater
band on time is set to ’0’ or the heater time has not expired.
Input bytes (to Master)
No Alerts currently exist for this software module so the 4th and 5th bytes will always be zero.
Associated Parameter options
4.8.30 Software module 924 - Air Cooler (Fan)
General Description
Set-up and monitoring of the TIC Air cooler (fan).
Output bytes (from Master)
None - No direct user control.
Input bytes (to Master)
No Alerts currently exist for this software module so the 2nd and 3rd bytes will always be zero.
Associated Parameter options
1st Manual control (0=Off, 1=On, 99=leave alone)
1st First two bytes form a 16-bit number which is the time in
minutes that the heater band has remaining.
2nd
3rd State - 0 = on, 4 = off.
4th Alert - refer to table in Appendix A2.
5th Priority - refer to table in Appendix A3.
Bytes Parameter Option Description of Parameter
1st Module number Cannot be changed.
2nd
3rd Heater band on time The number of hours that the heater band will be on for once
started. The turbo pump reaching normal speed initiates
heater band operation. If the turbo speed drops below normal
the heater band will switch off and the timer will be reset. If
this facility is to be used the output byte value should be 99.
1st State - 0 = off, 4 = on.
2nd Alert - refer to table in Appendix A2.
3rd Priority - refer to table in Appendix A3.
Bytes Parameter Option Description of Parameter
1st Module number Cannot be changed.
2nd
3rd Function Determines the operation of the air cooler output. Options are
either: Always On=0. On with the turbo=1.
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