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3.7.1.2 CCM
3.7.1.2.1 CCM Function The CCM is the center point for all electronics in the Compressor and performs the following
functionalities:
• Compressor monitoring and control
• Communication with the VFD module and CIM
• Bearing monitoring and Control
• Motor cooling EXV (EEV_MOT)
• IFV control
• Interlock
• Sensors monitoring
The CCM holds the computational power needed to operate the entire Compressor electronics. It has
all of the bearing and Compressor functional logic to provide the bearing PWM output. The EEPROM
holds the parameter settings for the particular Compressor modules. The ash memory holds the
rmware and data storage for the logs.
Compressor Components
2. Attach the Service Electronics Assembly to the main housing using two (2) screws located at the
heat sink but do not tighten. Be sure to include the two (2) ground wires on the left and the one
(1) 250 VDC ground wire on the right.
3. Install the remaining four (4) screws into the Service Electronics Assembly and torque to
specification.
4. Reconnect all applicable cables.
5. Reconnect the power and communication cables to the CCM and PWM.
6. Restore power to the Compressor.
7. Using the SMT, perform a calibration and save to electrically erasable programmable read-only
memory (EEPROM).
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