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9
Appendix
9.20.2
How to replace a potentiometer
WARNING!
Keep switches in the same position.
1
Note actual feedback value at lowest position before changing the potentiometer.
2
Remove old potentiometer.
3
Insert new potentiometer and adjust it so that actual value feedback at lowest position is
the same like noted before.
4
Fix potentiometer in according to the instruction of the motor manufacturer.
5
Verify burner adjustments and change if necessary
WARNING!
Since the normally used potentiometers can have different values, it is possible that the damp-
er has another position than before. Therefore you must prove the burner adjustment n again
after a potentiometer change, at all load points and in all operation modes.
9.21
Changing EPROMs
Tools:
–
Crosstip screwdriver size 0
–
Crosstip screwdriver size 1
–
Socket wrench size 5,5
–
Extraction tool for EPROMS
Preparation
:
You must generate a protected dataset from the device before you insert the memory exten-
sion.
Remove:
Switch OFF supply voltage (zero-potential), take off plugs and if necessary take out
ETAMATIC from the control cabinet.
Open the housing:
Remove the 8 countersunk screws from the left side panel.
Remove the circuit boards:
Pull out the circuit boards a bit, remove the PE-connection and take out the circuit boards of
the housing.
Remove the base board:
The base board is joined with the rear wall to one unit. You can be take it off simply from the
CPU board. Disconnect the PE-wire. The EPROMs / EEPROM /memory extension are
plugged on the CPU board.
Remove EPROM/EEPROM:
Summary of Contents for ETAMATIC
Page 1: ...Manual ETAMATIC ETAMATIC S CE 0085 AU 0207 Sensors and Systems for Combustion Engineering...
Page 2: ......
Page 7: ...6 Table of Contents 9 27 Dimensions and weight 128 9 28 Declaration of Conformity 131...
Page 65: ...64 8 Control Mode 8 2 1 Leakage test flow chart Fig 8 4 Flow chart leakage test...
Page 90: ...89 9 Appendix 9 8 Process Sequence Charts Fig 9 3 Process sequence chart gas with pilot burner...
Page 91: ...90 9 Appendix Fig 9 4 Process sequence chart oil with pilot burner...
Page 92: ...91 9 Appendix Fig 9 5 Process sequence chart gas without pilot burner...
Page 93: ...92 9 Appendix Fig 9 6 Process sequence chart oil without pilot burner...
Page 99: ...98 9 Appendix Fig 9 8 ETAMATIC S wiring diagram with ignition flame monitoring...
Page 104: ...103 9 Appendix Fig 9 16 LSB connection ETAMATIC LT1 other LAMTEC devices...
Page 134: ...133 9 Appendix...
Page 135: ......