Replacing The Frequency Converter - Hermle Z 326 Service Instruction

7.4.12 Replacing the frequency converter

• Remove the lower covering of the front housing as described in chapter 7.4.1.
• Remove all cable connections to the frequency converter.
• Remove screws and remove the frequency converter from the unit.
• Attention: Before placing a new converter into the unit, put some heat conducting paste onto the fixing
surface. Re-assemble the unit in reverse order.
7.4.13 Checkup the imbalance sensor
Movement sensor:
• From software version 1.60 it is possible to adjust/correct the imbalance value see chapter 7.3.2.3
• Should appear any difficulties with the imbalance, please give us an exact description o fit as well as
the serial number of the unit and the rotor type.
• You can check up the imbalance sensor with the operation menu. Look up in chapter 7.3.1.12.
Replacing the imbalance - (movement sensor) and speed sensor
• Remove the lower covering of the front housing as described in chapter 7.4.1.
• Remove the motor as described in chapter 7.4.4.
• Lay the motor down on its side and remove the two fixing screws of the green circuit board on the rear
side (look up in chapter 7.2.8).
• Replace the board and re-assemble the unit in reverse order.
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SERVICE INSTRUCTION Z 326
7 SERVICE INSTRUCTIONS
© HERMLE Labortechnik GmbH
Version 01/2010