Carrier 48LC - Page 56

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f. Press the Back key until the following display
appears --
3--- 0* Reference Limits
3 --- 1 * R e f e r e n c e s
g. Press B(Down Arrow) once to move the high-
light to the bottom row and then press OK.The
following display appears --
3-10 Preset Reference
[0]0.00%
h. Press OK once to highlight the number in the
bracket. Press OK again; the highlight moves to
the current percent value.
Use the Y and B (Up and Down Arrow)keys
and the following table to enter the required
Preset Reference values.
[0]0.00% Stop
[1]LL.LL% Low Speed (see Table 18, column
labeled “Preset References 3--- 10[1]”
for the proper % for each unit)
[2]MM.MM% Medium Speed (see Table 18, column
labeled “Preset References 3--- 10[2]”
for the proper % for each unit)
[3]100% Override (High Speed)
[4]100% High Speed (100% or close to 100%
to achieve the required CFM at high
speed)
[5]0.00% Stop
[6]0.00% Stop
[7]0.00% Stop
8. Setting the Ramp Time:
a. Press the Back key until the following display
appears --
3--- 0* Reference Limits
3 --- 1 * R e f e r e n c e s
b. Press B(Down Arrow) twice, the following
display appears --
3 --- 1 * R e f e r e n c e s
3 --- 4 * R a m p 1
c. Press OK, the following display appears --
3-41 Ramp 1 Ramp up Time
3.00s
d. Press OK again to highlight the bottom row and
use the Y and B (Up and Down Arrow)keys
to select 10.00s. Press OK again to set the select-
ed Ramp up Time.
e. Press B(Down Arrow) once, the following
display appears --
3-42 Ramp 1 Ramp Down Time
3.00s
f. Press OK again to highlight the bottom row and
use the Y and B (Up and Down Arrow)keysto
select 10.00s. Press OK again to set the selected
Ramp Down Time.
9. Setting Limits:
a. Press the Back key until the following display
appears --
2 --- * * B r a k e s
3---** Reference / Ramps
b. Press B(Down Arrow) once, the following
display appears --
3---** Reference / Ramps
4--- ** Limits / Warnings
c. Press OK, the following display appears --
4--- 1* Motor Limits
4 --- 4 * A d j . W a r n i n g 2
d. Press OK again, the following display appears --
4-10 Motor Speed Direction
[2] Both Directions
e. Press B(Down Arrow) once, the following
display appears --
4-12 Motor Speed Low Limi…
0.0Hz
f. Press B(Down Arrow) again, the following
display appears --
4-14 Motor Speed High Limi…
65.0Hz
NOTE:PressOK to highlight the Hz value and then use
the Y and B (Up and Down Arrow) keys to enter the
required values.
g. Press B(Down Arrow) once, the following
display appears --
4-18 Current Limit
110%
NOTE:PressOK to highlight the % value and then use the
Y and B (Up and Down Arrow) keys to enter the required
value. See Table 18 for proper selection of the value for this
parameter then press OK to set the selected value.
h. Press B(Down Arrow) once, the following
display appears --
4-19 Max Output Frequency
65.0Hz
NOTE:PressOK to highlight the Hz value and then use
the Y and B (Up and Down Arrow) keys to enter the
required values.
48HC48LC