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is no longer switched through for actuation of the QK output stage, but instead the output signal of the
comparator IC9, PIN 12.
This comparator detects the zero crossings of the high frequency current of the QK output stage and provides
a pulse at the rate of the HF at the priority encoder which switches this rate through to the actuation with
sufficient current flow of the output stage. In this way, the actuation has now been switched over from free-
wheeling by means of the start generator in a no-load case to feedback current control in a load case.
Hardware electronic safety circuits
The current from the QK output stage is measured one more time:
First the measurement voltage is divided by means of the divider R57, R61, then rectified using diode D10
and an average is generated using the time constants from the resistor R50 and the capacitor C10. As a
result, the comparison voltage from the divider is present at the input of the comparator IC4, on the one
hand, and on the other, the average of a voltage which corresponds to the average current of the output
stage. If the average output stage current exceeds the set threshold, the comparator tilts. Its output signal
blocks actuation of the output stage via the AND gate IC7, Pin 4, and the QK output stage is blocked for a
specific minimum time prescribed by the monoflop IC10, part 2. In this way, the circuit is provided with a
recovery time and a pump effect is avoided.
This is therefore an electronic fuse for the QK output stage.
In a similar manner, further measurement dimensions are monitored not only through software, but also
through hardware:
Voltage and current of the patient circuit are directed via their parameters UP_HF and IP_HF from the
Senso-board on the comparator IC6. This also applies to the voltage from the power supply unit U_NETZT
and its current U_INT from the power module.
The integrated module IC6 is a comparator, the threshold voltage of which can be preset as a digital word
via the control bus. In this way, the threshold voltage can be adapted to current requirements prescribed by
the processor. The comparator compares the analog instantaneous values with those limit values set by the
processor and passes its Yes/No decisions on to the NOR circuit IC5. There the signals are summarized and
directed to gate IC7. If one single parameter has exceeded its limit value, the QK output stage actuation is
blocked by the AND circuit IC7. At the same time, the monoflop IC10, Part 1, is triggered, maintaining the
blockade for a specific minimum time, so that a pump effect caused by switching off and back on again too
quickly is avoided.
Via the second part of the AND circuit IC7, further important enable signals are controlled for the QK
output stage:
•
Is there an enable signal from the processor?
•
Is the safety interlock signal giving its enable?
•
Is there currently no reset of the processor?
If any of these questions can be answered with NO, the QK output stage is blocked.
The spark control
Several ICC units offer both a control of the HF output voltage as well as optionally a control of the
Control board
Slot J3
Summary of Contents for ICC 200
Page 1: ...Service manual ERBE ICC 200 ICC 300 H E ICC 350 09 2004...
Page 2: ......
Page 6: ...6 266...
Page 7: ...Chapter1 Test programs and adjustments...
Page 8: ......
Page 42: ...1 TEST PROGRAMS AND ADJUSTMENTS 42 266...
Page 52: ...1 TEST PROGRAMS AND ADJUSTMENTS 52 266...
Page 53: ...1 TEST PROGRAMS AND ADJUSTMENTS 53 266 Art No 80116 201 09 2004 Adjustment 1...
Page 56: ...1 TEST PROGRAMS AND ADJUSTMENTS 56 266...
Page 57: ...1 TEST PROGRAMS AND ADJUSTMENTS 57 266 Art No 80116 201 09 2004 Adjustment 2...
Page 60: ...1 TEST PROGRAMS AND ADJUSTMENTS 60 266...
Page 61: ...1 TEST PROGRAMS AND ADJUSTMENTS 61 266 Art No 80116 201 09 2004 Adjustment 3...
Page 64: ...1 TEST PROGRAMS AND ADJUSTMENTS 64 266...
Page 65: ...1 TEST PROGRAMS AND ADJUSTMENTS 65 266 Art No 80116 201 09 2004 Adjustment 4...
Page 68: ...1 TEST PROGRAMS AND ADJUSTMENTS 68 266...
Page 69: ...1 TEST PROGRAMS AND ADJUSTMENTS 69 266 Art No 80116 201 09 2004 Adjustment 5...
Page 72: ...1 TEST PROGRAMS AND ADJUSTMENTS 72 266...
Page 73: ...1 TEST PROGRAMS AND ADJUSTMENTS 73 266 Art No 80116 201 09 2004 Adjustment 6...
Page 76: ...1 TEST PROGRAMS AND ADJUSTMENTS 76 266...
Page 77: ...1 TEST PROGRAMS AND ADJUSTMENTS 77 266 Art No 80116 201 09 2004 Adjustment 7...
Page 79: ...1 TEST PROGRAMS AND ADJUSTMENTS 79 266 Art No 80116 201 09 2004 Adjustment 7 Phase angle cos j...
Page 80: ...1 TEST PROGRAMS AND ADJUSTMENTS 80 266...
Page 81: ...1 TEST PROGRAMS AND ADJUSTMENTS 81 266 Art No 80116 201 09 2004 Adjustment 8...
Page 83: ...1 TEST PROGRAMS AND ADJUSTMENTS 83 266 Art No 80116 201 09 2004 Adjustment 8 Spark monitor...
Page 84: ...1 TEST PROGRAMS AND ADJUSTMENTS 84 266...
Page 85: ...1 TEST PROGRAMS AND ADJUSTMENTS 85 266 Art No 80116 201 09 2004 Adjustment 9...
Page 88: ...1 TEST PROGRAMS AND ADJUSTMENTS 88 266...
Page 89: ...1 TEST PROGRAMS AND ADJUSTMENTS 89 266 Art No 80116 201 09 2004 Adjustment 10...
Page 92: ...1 TEST PROGRAMS AND ADJUSTMENTS 92 266...
Page 93: ...1 TEST PROGRAMS AND ADJUSTMENTS 93 266 Art No 80116 201 09 2004 Adjustment 11...
Page 96: ...1 TEST PROGRAMS AND ADJUSTMENTS 96 266...
Page 97: ...1 TEST PROGRAMS AND ADJUSTMENTS 97 266 Art No 80116 201 09 2004 Adjustment 12...
Page 100: ...1 TEST PROGRAMS AND ADJUSTMENTS 100 266...
Page 101: ...1 TEST PROGRAMS AND ADJUSTMENTS 101 266 Art No 80116 201 09 2004 Adjustment 13...
Page 104: ...1 TEST PROGRAMS AND ADJUSTMENTS 104 266...
Page 110: ...1 TEST PROGRAMS AND ADJUSTMENTS 110 266...
Page 114: ...1 TEST PROGRAMS AND ADJUSTMENTS 114 266...
Page 122: ...1 TEST PROGRAMS AND ADJUSTMENTS 122 266...
Page 127: ...Chapter2 ERROR list...
Page 128: ......
Page 136: ...2 ERROR LIST 136 266...
Page 137: ...Chapter3 Circuit description...
Page 138: ......
Page 168: ......
Page 169: ...Chapter4 Block diagrams...
Page 170: ......
Page 174: ......
Page 175: ...Chapter5 Circuit diagrams...
Page 176: ......
Page 177: ...PCBs for ICC 200 300 350...
Page 181: ...5 CIRCUIT DIAGRAMS 181 266 Art No 80116 201 09 2004 ICC 200 300 350 CPU PCB bare 40128 026...
Page 188: ...188 266 5 CIRCUIT DIAGRAMS ICC 200 300 350 Control board bare 40128 095...
Page 190: ...190 266 5 CIRCUIT DIAGRAMS ICC 200 300 350 QC Power Stage bare 40128 127...
Page 192: ...192 266 5 CIRCUIT DIAGRAMS ICC 200 300 350 Power Module bare Power Module UL bare 40128 117...
Page 194: ...194 266 5 CIRCUIT DIAGRAMS ICC 200 300 350 ST Power Stage bare 40128 129...
Page 198: ...198 266 5 CIRCUIT DIAGRAMS ICC 200 300 350 Senso board bare 40128 130...
Page 200: ...200 266 5 CIRCUIT DIAGRAMS ICC 200 300 350 Upper Wiring Module bare 40128 118...
Page 201: ...PCBs only for ICC 200...
Page 202: ...202 266 5 CIRCUIT DIAGRAMS...
Page 208: ...208 266 5 CIRCUIT DIAGRAMS ICC 200 Motherboard bare 40128 025...
Page 210: ...210 266 5 CIRCUIT DIAGRAMS ICC 200 Mono Output bare 40128 096...
Page 211: ...PCBs only for ICC 300...
Page 212: ...212 266 5 CIRCUIT DIAGRAMS...
Page 218: ...218 266 5 CIRCUIT DIAGRAMS ICC 300 Motherboard bare 40128 092...
Page 220: ...220 266 5 CIRCUIT DIAGRAMS ICC 300 Relay Board bare 40128 093...
Page 221: ...PCBs only for ICC 350...
Page 222: ...222 266 5 CIRCUIT DIAGRAMS...
Page 229: ...5 CIRCUIT DIAGRAMS 229 266 Art No 80116 201 09 2004 ICC 350 Motherboard bare 40128 092...
Page 231: ...5 CIRCUIT DIAGRAMS 231 266 Art No 80116 201 09 2004 ICC 350 Relay Board bare 40128 093...
Page 234: ...234 266 5 CIRCUIT DIAGRAMS ICC 350 Neurotest Neurotest Board 40128 027...
Page 236: ...236 266 5 CIRCUIT DIAGRAMS ICC 350 Neurotest Motherboard Neurotest bare 40128 028...
Page 238: ...238 266 5 CIRCUIT DIAGRAMS ICC 350 MIC MIEN DOKU MIC Board bare 40128 064...
Page 240: ...240 266 5 CIRCUIT DIAGRAMS ICC 350 MIC MIEN DOKU Protection Board bare 40128 141...
Page 241: ...AppendixA Part Numbers...
Page 242: ......
Page 263: ...Appendix B Abbreviations Notes Addresses...
Page 264: ...264 266 B APPENDIX B...
Page 266: ...Your notes...