Comet Motorized Capacitors offer the latest integrated drive technology for vacuum capacitors at the best price-performance ratio. A single communication protocol for RS232 and RS485 provides flexibility in a wide range of applications.
Motorized Capacitors are the ideal solution for high-precision operation. Besides ensuring highest accuracy, motorized capacitors simplify procurement with an easy-to-install subsystem.
The core component of the Universal Motorized Capacitor is a Comet variable vacuum capacitor, mounted with an insulating cover, coupler and stepper-motor. A durable, backlash-free Comet-coupler connects the capacitor to the drive system. Integrated flanges ensure easy mounting in the system. Appropriate high-voltage insulation between the capacitor and the flanges is also included.
Integrated Drive Solutions
Capacitor tuning
Using a stepper-motor, the capacitance of the variable capacitor can be tuned precisely between user selectable limits.
High-level commands
The module can be controlled from a PC or a control board using high-level commands (RS232, RS485). The communication protocol allows the execution of the following commands:
- Precise motion control by setting full-step, micro-step or capacitance position
- Set idle and drive current, speed and slave address within allowed range
- Read out of actual full-step, micro-step and capacitance position
- Read out of actual full-step, micro-step and capacitance position
- Read out of characteristic capacitance curve (C-Curve)
- Read out of various parameters such as firmware version, serial number and all customer and factory limits
- Comprehensive RX responses (ACK, NAK):
- ACK for all commands
- ACK for «movement-started» resp. «movement completed»
- NAK e.g. check-sum error, index out of range
- Baud rate can be set within 9.600 to 115.200 Bd
- Set user limits (Cmin and Cmax) within factory limits
- Store up to 10 user selectable positions
Further technical information can be found in our Service Bulletins SB-60, SB-63, SB-64 and SB-69.
Capacitor Series with Integrated Drive
Two sizes of integrated drive systems are available for different capacitor series.
Here our recommendations:
ID-400
Uni-Con
The Semiconductor Standard
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ID-400
Uni-Select
The first choice for
200 mm applications
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ID-1200
Hexa-Con
High frequency,
long lifetime
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ID-1200
Maxi-Con
Higher Capacitance
at Higher Voltage
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