Dessicant/Re-Gen Controller AHDA3d1

Configuration Parameters

ref Description default range
C1 SACT sensor action

0 use local sensor unless remote sensor connected see use of nviRemoteTemp for Open systems

1 average valid sensor values

2 maximum of valid sensor values

3 minimum of valid sensor values

0 0 to 3
C2 DOFF Offset applied to Outside Temperature to produce minimum Re-Gen temperature 15 0.0 to 25.0
C3 HPRD heating valve period or minimum on time depends on driver type 1 to 60 secs/10
C4 HDLY Interlock delay

negative value delays fan (or pump) after heating starts

positive value cause run on of fan after heating shuts down

0 -30.0 to 30.0 minutes
C5 CPRD cooling valve period or minimum on time depends on driver type 1 to 60 secs/10
C6 CDLY Interlock delay

negative value delays fan (or pump) after cooling starts

positive value cause run on of fan after cooling shuts down

0 -30.0 to 30.0 minutes
C7 FPRD Fan or pump period, minimum time to change fan speed steps 12 (2 minutes) 1 to 60 secs/10
C8 MIND Minimum demand 4 0 to 100
C9 MANL Manual level , from Doorway 0 -100 to 100 %
C10 ALRM alarm mode

0 ignore alarms

1 report alarms

2 report alarms, shut down all outputs on alarm

3 report alarms, shut down all outputs on STOP alarm or sensor fail alarm

1 0 to 3
C11 ALST not used 0 0 to 1
C12 CMDE control mode

0 driver only mode

1 closed loop control of re_gen temperature

1 0 to 1
C13 MXVA* Maximum voltage channel A 10.0 0.0 to 10.0 volt
C14 MNVA* Minimum voltage channel A 0.0 0.0 to 10.0 volt
C15 MXVB* Maximum voltage channel B 10.0 0.0 to 10.0 volt
C16 MNVB* Minimum voltage channel B 0.0 0.0 to 10.0 volt

*AOP models only

Monitoring Parameters

ref   Description default range
    INPUTS    
I1 (C30) ILKA Interlock in operation channel A   0 to 1
I2 (C31) ILKB Interlock in operation channel B   0 to 1
I3 (C32) ILKC Interlock in operation channel C   0 to 1
I4 (C33) ILKD Interlock in operation channel D   0 to 1
I5 (C34) OCCD Occupied    
I6 (C35) RLYA relay A   0 to 1
I7 (C36) RLYB relay B   0 to 1
I8 (C37) RLYC relay C   0 to 1
    SWITCHES    
W1

(C38)

AUTO Controller in automatic control    
W2

(C39)

OVRD Override

W1 and W2 used together with Doorway Auto/manual dialog box

   
W8

(C45)

CGST Configuration mode    
    SENSORS    
S1 (C50) RTRH Regenerator off coil temperature   0 to 95 deg C
S2 (C51) DMND Controller output   -100 to 100
S3 (C52) REQD Controller current setpoint   0 to 95 deg C
S4 (C53) HDMD Output to dessicant Wheel   0 to 100
S5 (C54) CDMD Output to Regenerator Heater   0 to 100
S6

(C55)

FDMD Not used   0 to 100

 

Control loop parameters

ref   Description default range
C70 UNDH sets very Low muzzy level for heating loop 6.0 10 to 200
C71 OVRH sets very High muzzy level for heating loop 6.0 10 to 200
C72 DBBH deadband sets limit for OK band for heating loop 2.0 10 to 200
C73 RCGH max rate of change heating   1 to 250
C74 GN H gain heating 20 1 to 250
C75 UNDC sets very Low muzzy level for cooling loop 6.0 10 to 200
C76 OVRC sets very High muzzy level for cooling loop 6.0 10 to 200
C77 DBBC deadband sets limit for OK band for cooling loop 2.0 10 to 200
C78 RCGC max rate of change cooling   1 to 250
C79 GN C gain cooling 20 1 to 250

Plot configuration

ref   Description default range
C130 PN A config variable number for channel A 51 0 to 255
C131 PT A period code for plot A 1 1 to 4
C132 PN B config variable number for channel B 52 0 to 255
C133 PT B period code for plot B 1 1 to 4

Driver Parameters

ref   Description default range
C150 HTYP Channel 1 (Wheel) driver type   0 to 9
C151 HSTG Channel 1 number of (Wheel) stages   0 to 8
C152 CTYP Channel 2 (Re-Gen) driver type   0 to 9
C153 CSTG Channel 2 number of (Re-Gen) stages   0 to 8
C154 FTYP not used   0 to 7
C155 FSTG not used   0 to 5