Honeywell dcp100t, Operator'S Manual

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Upon en try into Con trol ler De fine Mode, the
SET
in di ca tor will come ON and the
first of the Con trol ler pa rame ters (In put Fil ter Time Con stant) will be pre sented for
ed it ing/view ing. Us ing the
SET UP
key, step through the se quence of Con trol ler
pa rame ters, ed it ing as re quired (us ing the Up/Down keys).
9.1 CONTROLLER PARAMETERS
The Controller parameters appear in the following sequence:
Parameter
Message
Display
Function
Available Settings/Values
(Lower Main Display)
Input Filter Time
Constant
Defines the time constant
for the input filter
(removes extraneous
pulses from the process
variable input).
0.0 seconds (filter OFF) to 100.0
seconds on 0.5-second
increments. Default = 2.0 seconds
Process
Variable
Offset 1
Modifies actual PV value:
PV PV = PV value
For linear input, limited by Scale
Range Maximum and Scale Range
Minimum. Default = 0.
Output 1 Power Current Output 1 power
level
Read only - not adjustable
Output 2
Power
2
Current Output 2 power
level
Read only - not adjustable
Proportional
Band 1 (PB1)
Portion of input span in
which Output 1 power
level is proportional to
the (offset) process
variable value (see
Figure 9-1)
0.0% (ON/OFF Control) to 999.9%
of input span. Default = 10.0%.
Proportional
Band 2 (PB2)
Portion of input span in
which Output 2 power
level is proportional to
the (offset) process
variable value (see
Figure 9-1)
0.0% (ON/OFF Control) to 999.9%
of input span. Default = 10.0%.
Reset
3
Integral Time Constant 1 second to 99 minutes 59
seconds.
Rate
3
Derivative Time Constant 00 seconds to 99 minutes 59
seconds
Overlap or
Deadband 4
The portion of
Proportional Band (PB1 +
PB2) over which both
outputs are active
(Overlap) or over which
neither output is active
(Deadband) - see Figure
9-1
− 20% to + 20% (negative value =
deadband, positive value =
overlap). Default = 0%.
Bias (Manual
Reset) 3
Bias applied to output
power, expressed as a
percentage of output
power
0% to 100% (Output 1 only)
−
100% to +100% (Outputs 1 & 2)
Default = 25%
9-2