Contrex M-Traverse Manuel d'utilisateur télécharger pdf (Page 58)

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CP-17 is the number of Follower encoder lines that the Feedback

Frequency input registers when the Follower travels one traverse

length. When you calculate this variable, be sure to consider all gear

reductions, belt reductions and other types of reducers. Use the

following procedure to check or find CP-17 :

• Place the M-Traverse in F-Stop.

• Activate the Home Set input (clears the Follower position to zero).

• Place the M-Traverse in F-Stop.

• Display MV-44 (Follower Position).

• Jog the Follower either one laypitch (CP-15) for level wind or one

traverse length( CP-15) for web scan.

• MV-44 should have the same value as CP-17.

PPR Follower (CP-18)

The PPR Follower (CP-18) parameter is the number of pulses per

revolution of the feedback encoder (encoder resolution in lines).

Maximum RPM Follower (CP-19)

The Maximum RPM Follower (CP-19) parameter is the RPM of the

feedback encoder shaft when the Follower is operating at maximum

speed. Although this entry does not need to be exact, highly inaccurate

entries will make it difficult to tune the M-Traverse for precision Follower

profiling. When you calculate this variable, be sure to consider all gear

reductions, belt reductions and other types of reducers.

The factory defaults for the Follower Scaling Control Parameters are found in Table 3-4.

To modify the default parameters refer to Table 3-5. If you are uncertain how to enter a

Control Parameter, review the

Operations: Keypad

section.

Table 3-4 Default Follower Scaling Control Parameters

CP Parameter Name Parameter Value

CP-15 Engineering Units 0.000

CP-16 Lead PPR Reel 1000

CP-17 Follower Lines/E.U. 1000

CP-18 PPR Follower (Feedback) 60

CP-19 Max RPM Follower 2000

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Contrex M-Traverse Manuel d'utilisateur Page 58