DOLD DMP 96 A - Two-Point Controller; Continuous-Action Controller; Three-Point Response; Actuator Function

DOLD GMBH Operating instructions DMP 96 A
DMP 96 A Version: 020 Number of pages: 26
H0e020bA4.doc Edition: 07.11.2006
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• Continuous-action control response for heating and cooling with PDPID – control character-
istic and self-optimization algorithm
• Three-point response with adjustable hysteresis
• Three-point response with one-sided PDPID – control characteristic and self-optimization al-
gorithm
3.1.1 Two-point controller:
Relay output K 1: Switching function configurable: Control contact or limit comparator
Relay output K 2: Switching function configurable: Limit-value contact (with adjustable
hysteresis) and limit comparator
Options: Logic output in place of relay output K 1 or K 2,
actual-value output.
3.1.2 Continuous-action controller:
Output 1: Characteristic curve configurable (heating or cooling):
Control output (relay output K 1 eliminated)
Relay output K 2: Switching function configurable: Limit-value contact (with adjustable
hysteresis) or limit comparator
Option: Logic output in place of relay output K 2
3.1.3 Three-point response:
Three-point response is configurable:
Relay output K 1 heating, relay output K 2 cooling,
Relay output K 1 cooling, relay output K 2 heating,
Options: Logic output in place of relay output K 1 or K 2,
actual-value output.
3.2 Actuator function:
Reconfiguration of the "Aut" parameter makes it possible to use the unit as an actuator (actuator
mode: parameter "Aut" set to OFF on the configuration level)
The
key can be used to switch smoothly back and forth between the control
ler
functions (automatic function) and the actuator (manual function).
The manipulated variable (%) set on the operator or setpoint entry level is relative to the cycle
time (with relay output) or to output deviation (with continuous-action output).
The currently activated function is stored in the EE-PROM. When the unit is powered up it is in
the state of the function last stored.
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