Warner Electric CBC-1550AHFC - Manual (Page 13)

13 Warner Electric • 800-825-9050 819-9050
Additional Features
These features are available on the current unit,
but some extra hardware or programming is
needed to enable them.
Batch Counter:
This feature will trigger the Batch Complete out-
put, pin 21, when the Batch Preset, key 7,
reaches the Batch Counter, key 6, value (refer to
Entering presets, page 6, to enter a value in the
Batch Preset). The Batch Counter can be manu-
ally or automatically reset. Manual reset is the
default setting in the program mode line 16 (08.
latch). To automatically reset the Batch Counter,
set the Batch Counter Reset line 16 in Program
Mode to Momentary (00.01 to 99.99 seconds).
This will hold the Batch complete output termi-
nal 21 active for the time programmed and reset
the Batch Counter.
E-Stop:
By maintaining a contact closure between COM,
terminal 13 and Stop terminal 10, no inputs will
be received or outputs fired. This can be used
as a safety feature to make sure a start will not
occur while some other process is taking place.
Display Scaling (Program Line 4)
• Changing the CC & decimal point will
affect presets
• CC should not exceed 1.0
• CC of .5 displays encoder pulses
The display can be easily scaled to display engi-
neering units (inches, meters, degrees, rotations,
etc). Line 4 of the programming (correction con-
stant) prompts input of a factor (five decades)
that will be multiplied times the incoming pulse
train to display the desired engineering units.
Remember that the CBC-1000 includes a times
2 internal multiplier effectively doubling the reso-
lution of a given encoder. Thus, if one wishes to
view encoder pulses, a multiplier (correction
constant) of '0.5' should be entered on Line 4 in
the programming mode. The resolution of the
encoder should be chosen to take advantage of
the best instantaneous accuracy of the calibra-
tor. The best instantaneous accuracy is obtained
with a correction constant setting not exceeding
1.0000. The scaled units are also used to meas-
ure stop and move distances. Consequently, the
scaled units selected affect the system resolu-
tion. For example, with the correction constant
set for display at 1.0 inches, is the smallest
measurable increment. Remember, the decimal
point must be programmed ( programming line
5) to display the desired display resolution. This
resolution is also used in the denominator of the
correction constant equation. The general form
of the equation for the correction constant is
given below.
CC (Correction Constant) =
Example: Web measurement - Display in inches, display resolution in tenths of an inch
Encoder Resolution - 600 PPR
Mounting - Direct, via 4" diameter wheel
Calculation:
Distance traveled in engineering units per one revolution of the encoder
Display Resolution Desired x Encoder Resolution x 2
(0.001, 0.01, 0.1, 1.0)
2πr = (2)(π)(2) = 12.5664
cc = = 0.1047
0.1 x 600 pulses/revolution x 2