CONTREX CX-1200 - Manual (Page 147)

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RELATED ITEMS P1/1
Loop Update
Loop Update (CP-360) is the time interval between the Control Output (CO_Sig) calculations. This interval sets the
sampling rate of the PID control loop.
3 = 100 mSec Update
2 = 10 mSec Update
1 = 1 mSec Update (default)
Sync Logic
Sync Logic (CP-204) allows selection of the direction taken when making a sync-correction. Closest makes the correc-
tion in the direction of the closest lead sync mark. Forward always makes the correction in the forward direction toward
the lead sync mark. And Back always makes the correction back to the lagging lead sync mark.
3 = Backward
2 = Forward
1 = Closest (default)
InPosnBand
In Position Band (CP-337) sets a limit on the magnitude of the PosnErr (MP-33) allowed before the CX-1200 will use the
Sync Logic (CP-204) setting to resolve the position error. If the magnitude of the Position Error is greater than the In
Position Band value the CX-1200 will follow the Sync Logic setting to resolve the position error.
LdSyncBand
Lead Sync Band (CP-335) sets a “dead-band” around the sync-mark position to allow for irregular sync marks. If the
actual sync pulse occurs inside this “dead-band”, the CX-1200 will presume an “in-sync” status, and therefore make
no sync-correction. A sync correction will be made if the sync pulse occurs outside this band. The band is defined as
± the value entered.
FbSyncBand
Feedback Sync Band (CP-336) sets a “dead-band” around the sync-mark position to allow for irregular sync marks. If
the actual sync pulse occurs inside this “dead-band”, the CX-1200 will presume an “in-sync” status, and therefore
make no sync-correction. A sync correction will be made if the sync pulse occurs outside this band. The band is
defined as ± the value entered.
Sig Fltr Sel
Signal Filter Select (CP-361) selects the signal to route through a low pass filter. The effect is visible on the speed
value. Only one filter routine is available, and should be used on the most erratic input signal. While the damped
signal will permit smoother control action, note that it will introduce a small delay in response to the original signal
variations.
4 = Analog In 2
3 = Frequency In 2
2 = Analog In 1
1 = Frequency In 1
0 = Not Used (default)
SigFltrTmConst
Signal Filter Time Constant (CP-362) sets the time constant in milliseconds for the signal filter.