CONTREX CX-1200 - Manual (Page 400)

C - 54
(Continued)
Appendix C: Parameter Summary Numeric Quick Reference (continued)
CP-364 Kff Auto En
Kff Automatic Enable (CP-364) enables the CX-1200 automatic adjustment of Kff (MP-48) at the specified KffAdjUpdt
(CP-363) interval in RUN with the loop closed.
1 = ON = Enabled
0 = OFF = Disabled (default)
Minimum Value: 0 Maximum Value: 1
Default Value: 0 Units: Coded
CP-367 LgErrThld
Large Error Threshold (CP-367) sets a threshold for the magnitude of Posn Err (MP-33) allowed before the CX-1200 will
utilize its special ‘Large Position Error Correction’ algorithm. The CX-1200 will enter the LPECA when the magnitude of
the position error is greater than the value entered for LgErrThld (CP-367). The CX-1200 will return to its normal position
loop when the magnitude of the position error is less than or equal to 1/4 the value entered for LgErrThld (CP-367).
Minimum Value: 0 Maximum Value: 999999
Default Value: 999999 Units: EU
CP-368 LgErrGain
Large Error Gain (CP-368) sets the rate of position error recovery while the CX-1200 is utilizing the ‘Large Position Error
Correction’ algorithm. Larger gain will result in faster recovery.
Minimum Value: 1 Maximum Value:100
Default Value: 20 Units: %/Sec
CP-369 OverSpdAllow
Over Speed Allowance (CP-369) sets a limit for the maximum speed ratio allowed while the CX-1200 is recovering
position error using the ‘Large Position Error Correction’ algorithm. This limits how much faster than the lead, the
follower is allowed to go. Example: a value of 50% would allow the follower to go 1.5 times the lead speed in order to
recover the position error.
Minimum Value: 1 Maximum Value: 100
Default Value: 50 Units: %
CP-370 Min Fb Alm
Minimum Feedback Alarm (CP-370) signals an under-speed condition. When the magnitude of the Fb EU/Tm (MP-06) is
less than or equal to MinFb Alm (CP-370), then the LoSpdAlm bit (28) in the PLC is set to “1”. You can output this alarm
for indication or action, or you can use the alarm logically in the PLC.
Minimum Value: 0 Maximum Value: 9999999
Default Value: 0 Units: EU/Tm