Drive System | Controls | Operator Interface | Software Modules | |||||||||
Variable Frequency Drive | Across-the-line | PLC | Relay | Pushbutton Panel | Text Display | Graphic Display | A | B | C | D | E | |
CAS-P.1 | l | l | ||||||||||
CAS-P.2 | l | l | l | l | ||||||||
CAS-P.3 | l | l | ¡ | l | l | l | ¡ | |||||
CAS-P.4 | l | l | ¡ | l | l | l | l | l | l | |||
CAS-P.5 | l | l | l | l | l | l | l | l | ||||
CAS-P.1Provides a pushbutton operator panel (HMI) for monitoring and operation of the centrifuge. There is no logic for safety interlocks. |
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CAS-P.2Turnkey package for an economic solution. The local control panel enables to activate the centrifuge and the feed system. Included is the unbalance monitoring and a safety emergency shutdown pushbutton. Interlocks for rotor and pump motor are provided by the means of a control system. Process variables such as timers can be adjusted locally.
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CAS-P.3Turnkey package for higher requirements. A local operator panel (HMI) in either traditional "pushbutton" configuration or as a state of the art electronic display provides the interface between the operator and the control system. The PLC controller and additional control devices can be mounted in an additional enclosure to be placed in a control cabinet. The control system monitors and activates the entire centrifuge system including peripheral equipment. Process parameters can be adjusted easily utilizing the local operator panel in order to meet specific customer requirements. |
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CAS-P.4Turnkey system with motor power packs included. A local operator panel (HMI) in either traditional "pushbutton" configuration or as a state of the art electronic display provides the interface between the operator and the control system. The PLC controller and power breakers for the motors are mounted in an additional cabinet to be placed in a control room. The control system monitors and activates the entire centrifuge system including peripheral equipment. Process parameters can be adjusted easily utilizing the local operator panel in order to meet specific customer requirements. The motors are started across the line utilizing heavy duty breakers and thermal protection devices. |
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CAS-P.5Turnkey system with variable frequency drive. The local operator panel is equipped with a state of the art full color graphic display. The panel provides excellent monitoring, operating and troubleshoot features to the operating personnel. The PLC controller is mounted together with a heavy duty variable frequency drive (VFD) in an additional cabinet to be placed in a control room. The control system monitors and activates the entire centrifuge system including peripheral equipment. Process parameters can be adjusted easily utilizing the local operator panel in order to meet specific customer requirements. The speed of the motors can be adjusted for easy adaptation to changing process conditions. Using a VFD instead a standard across the line start for the motors reduces stress to the power circuits and the equipment. It also allows to operate the centrifuge more efficiently to reduce operating cost. |
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A | Basics | Unbalance (Vibration) monitoring Independent monitoring device to be tied into local control system |
B | Start-up & interlocks | Sequence start-up & shutdown procedure Hydraulic pump interlocks Additional customized interlocks Fault display (general alarm) |
C | Operating &Safety Package | Operator and process safety interlocks Oil temperature Oil level Sequence monitoring Detailed alarm monitoring |
D | Manual operation | The start-up and operating sequence of the centrifuge is accomplished by means of manual control. Start/Stop sequences Feed control Shutdown sequences |
E | Automatic operation | The entire operation is monitored and controlled by the PLC Start/Stop sequences Feed control Wash cycles Process optimization Motor control center monitor VFD monitoring (only with CAS-P.5) |
