Precision Digital PD540 - Manual (Page 28)

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The parameter to set derivation time for PID control.
Setting ranges of 1.D are OFF or 1 to 6000 seconds.
Its default setting is 30 seconds.
The parameter to set the manual res et in the PID calculation. This setting only functions if
the integral time setting is OFF. This setting always functions for H/C models.
PV
PV
This parameter establishes the PV range of each of the 3 main PID zones. The range of
PID zone 1 is IN.RL (IN.SL if set for mV or V input) to 1.RP. The range of PID zone 2 is
1.RP to 2.RP. The range of PID zone 3 is 2.RP to IN.RH (IN.SH if set for mV or V input).
Note: The contents of PID Groups 2, 3, and 4 are the same as PID Group 1.
The parameter to set proportional operation for PID control for the cooling control in
H/C models. Setting options are 0.0 (when using On/Off control) or 0.1 to 999.9%.
Its default setting is 10.0%.
The parameter to set integral time for PID control for the cooling control in H/C models.
Setting options are OFF or 1 to 6000 seconds.
Its default setting is 120 seconds.
The parameter to set derivative time for PID control for the cooling control in H/C models.
Setting options are OFF or 1 to 6000 seconds.
Its default setting is 30 seconds.
The parameter to set the dead band, in which there is no output from either the heating or
cooling outputs. Refe r to Fig 6, Fig 7, and Fig 8.
PV
PV
PV
PV
This parameter establishes the range of each of the 3 main PID zones. The range of PID
zone 1 is IN.RL (IN.SL if set for mV or V input) to 1.RP. The range of PID zone 2 is 1.RP
to 2.RP. The range of PID zone 3 is 2.RP to IN.RH (IN.SH if set for mV or V input).
This parameter establishes the hysteresis width of the PID zone.
This parameter sets the range of deviation for PID zone 4. When the difference between
the PV and SP is greater th an this deviation range, the controller will utilize PID group 4
for PID settings. While the PV and SP are within this deviation difference, the controller
will utilize whatever zone would normally be used based on the PV value.
PV
PV
PV
PV
This parameter sets the integration time for PID control.
Setting ranges of 1.I are OFF or 1 to 6000 seconds.
Its default setting is 120 seconds
PV
PD540 Series Nova Digital Process and Temperature Controller Instruction Manual
28