CONTREX CX-1200 - Manual (Page 15)

Page 13
Step 4 - Lead Scaling - Parameter Entry
The CX-1200 will display System Setup Lead\Page 4.
Configure the CP’s on this screen as required.
State {MP-50}
Cnt Mode FI1 {CP-260}
PPR FI1 {CP-261}
Pulses FI1 {CP-262}
EU FI1 {CP-263}
FI1 Hz {MP-01}
FI1 RPM {MP-02}
Ld EU/Tm {MP-05}
NOTE: The Help key accesses the Help screen and gives you a brief description of the parameter or subject
that is highlighted (active) on the screen. Press the Help key again to return to the previous screen.
When it is in follower mode, the CX-1200 must convert the lead frequency into engineering units (RPM, Feet/
min, etc.). To do this, it must “know” the ratio between encoder lines and these units. This ratio is entered in two
parts, the first part is FI1 Pulses and the second part is EU FI1 (Engineering Units for Frequency Input Number
One). For example, if the lead is coming from 60 tooth Quad Ring Kit on a motor armature driving a conveyor
with a 2 foot diameter roll through a 30:1 reduction and engineering units are feet, then FI1 Pulses {CP 262} =
1800 (60*30) and EU FI1 {CP 263} = 6.283 (2*3.14...).
1. Enter your FI1 Pulses {CP 262}.
2. Enter your EU FI1 {CP 263}.
Verify the Lead Scaling:
3. Place the Lead control into “Run”.
4. If the Ld EU/Tm {MP-05} does not agree with the lead engineering units expected, then recalculate your scaling
terms and return to step 1.
5. Place the Lead control into “Stop”.
Press the "Page Down" key to proceed to the next page.