Contrex MLP-Trim Bedienungsanleitung Seite 68

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Follower Mode - Analog Lead
The MLP-Trim can be scaled for Engineering Unit setpoint entry and Tach display
operation using the analog input for the lead signal. The following Control Parameters
give the MLP-Trim the necessary information for analog lead operation in Follower
mode.
Analog Input Allocation(CP-84)
Setting CP-84, Analog Input Allocation, to a value of "1" allocates the
analog input to be used as the lead source.
Follower Engineering Units (CP-21)
The actual value of the Follower Engineering Units if the system were to
operate with an analog lead level of 10.0 volts and a feedback of Max
RPM Feedback (CP-34). This is the maximum calibrated analog input
level (refer to Installation/Setup: Calibration, Analog Input Calibration).
Note: The analog input does not need to operate to 10.0 volts full scale to be
used for analog lead.
Max RPM Feedback (CP-34)
This is the maximum RPM of the feedback sensor shaft during system
operation. This number should be the same as the maximum operating
speed set during step 7 of the calibration procedure.
PPR Feedback (CP-31)
The number of gear teeth or encoder lines on the follower feedback
sensor per revolution.
Table 3-19 Default Scaling Control Parameters
CP Parameter Name Parameter Value
CP-84 Analog Input Allocation 0
CP-21 Follower Engineering Units 1.000
CP-34 Max RPM Feedback 2000
CP-31 PPR Feedback 60
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