Operating Manual - SCHNIER Elektrostatik GmbH

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7. Functional Description 7.1. General The high voltage generator is built as a compact design. The control, power amplifier, the transformer and the HV multiplier are combined in one device. Supply Voltage is 24 V DC. The built-in microcontroller provides a very accurate and fast control of the HV output. 7.2. Safety The voltage (U) at the HV connector is measured permanently even after switching off the high voltage. With a given capacity (C) one can calculate the discharging energy (E) that remains in the spraying system and the high voltage supply system: E=1/2C* U 2 E: remaining discharging energy after switch off in Joule C: total capacity of the whole HV supply system in Farad U: Voltage level in Volt Factory preset for the calculation by the HV generator is 3nF. This value can be changed via CAN bus to the actual capacity of the installation (not yet implemented). Based on the limit of 0.24mJ (EN 50176,50177,50223) for the discharge energy to be safe the hv generator sets the bit “high voltage is off safely” in the status word if E is below this limit. Otherwise the bit is reset. For 3nF and 0.24mJ the voltage limit is about 400V. WARNING If a Generator has to be removed for repair – especially after the occurence of failures of selftests – Observe Section 6 of this manual. <strong>Operating</strong> Instructions 810364_BAL_EN120302 Stand 02.03.2012 Seite 14 von 25
7.3. Block Diagram 24 VDC CANopen Power Stagel 7.4. Specification Micro Controller Transformer I-Measurement U-Measurement HV Multiplier Protection HS- Resistor Ausgang Measurement Resistor Supply Voltage 24 V DC max. 2A Output Voltage 10-100 kV negative Output Current 300uA Max. installation capacity 2 nF Environment +15°C bis 40°C max. 70% rel . humidity non condensing. Storage Temperature -20°C - +70°C Dimensions see 4.3. Weight Max 3,5 kg Protection IP 65 HV Connector Anode tube with 4mm hv connector Bus Interface Based on CAN Open Operation Modes Constant U (Voltage) and Constant I (current) <strong>Operating</strong> Instructions 810364_BAL_EN120302 Stand 02.03.2012 Seite 15 von 25
Page 1 and 2: 1 Operating Manual HV Generator sma
Page 3 and 4: 1. Product and Manufacturer 1.1. Pr
Page 5 and 6: 3. Intended Use This Product is ded
Page 7 and 8: 4. Installation 4.1. Description 1
Page 9 and 10: 4.2. Dimensional Drawing Operating
Page 11 and 12: High Voltage Connector The 4mm HV P
Page 13: 5.1. Safe shut down of the high vol
Page 17 and 18: put voltage will be hold constantly
Page 19 and 20: 8.1.Description of Control Word Byt
Page 21 and 22: 3 Imax switchoff in Umode 1: If the
Page 23 and 24: 8.5. Overview Control and Status Wo
Page 25: 9. Declaration of Conformity Herste

Operating Manual - SCHNIER Elektrostatik GmbH

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