Watlow Series PD - Manual (Page 78)

W a t l o w S e r i e s P D
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76
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C h a p t e r 9 D e v i c e C o n f i g T a b l e
Device Configuration > Control Loops > Loop 1
Loop 1 - Closed Loop Indirect PowerDisplay indirect (heat) power applied based on the PID calculations.,Monitor DeviceTrend Informa-
tion,,0 to 10000,0,83 (R) (/100)
Loop 1 - Closed Loop Direct PowerDisplay direct (cool) power applied based on the PID calculations.,Monitor DeviceTrend Information,,-
10000 to 0,0,84 (R) (/100)
Loop 1 - Working Set Point,Monitor Device,,,75000,78-79 (R) (/1000)
Loop 1 - Auto Set pointDisplay the closed loop (auto) set point for control loop.,Monitor DeviceTrend Information,,,75000,76-77 (R/W) (/1000)
Loop 1 - Manual/Auto ModeTransitions between open loop (manual) and closed loop (auto) control.,Monitor DeviceTrend Information,,Off
(0)Manual (1)Auto (2),Off (0),80 (R/W)
Loop 1 - Manual Set pointDisplay the open loop (manual) set point for control loop.,Monitor DeviceTrend Information,,-10000 to 10000,0,75
(R/W) (/100)
Loop 1 - Loop ActionSelect the action of the Loop as Indirect (heat only), Direct (cool only) or Dual (Heat/Cool),Configuration Loop Settings
1,,Off (0)Heat (Indirect) (1)Cool (Direct) (2)Heat/Cool (Indirect/Direct) (3),Off (0),653 (R/W)
Loop 1 - Loop Indirect (Heat) AlgorithmSelect method of control algorithm used for Indirect (Heat) for Loop 1.,Configuration Loop Settings
1,,On/OffPID,PID (1),651 (R/W)
Loop 1 - Loop Direct (Cool) AlgorithmSelect method of control algorithm used for Direct (Cool) for Loop 1.,Configuration Loop Settings
1,,On/OffPID,PID (1),652 (R/W)
Loop 1 - Failure LatchingSelect to latch input failure. If a sensor fails, an error is generated. This selection will latch intermittent
error.,Configuration Loop Settings 1,,Off (0)On (1),Off (0),660 (R/W)
Parameter Name
and Description
Web Page Your
Settings
Range Default Modbus*
(Read/write and
scaling)
Loop 1 - Closed Loop Indirect
Power
Display indirect (heat) power
applied based on the PID
calculations.
Monitor Device
Trend Information 0 to 10000 %
(two decimal places) 0 83 (R) (/100)
Loop 1 - Closed Loop Direct
Power
Display direct (cool) power
applied based on the PID
calculations.
Monitor Device
Trend Information -10000 to 0 %
(two decimal places) 0 84 (R) (/100)
Loop 1 - Working Set Point
Active set point. Could be one of
several set point sources, Auto
Set Point, Digital Set Point or
Ramp to Set Point
Monitor Device 75000 78-79 (R)
(/1000)
Loop 1 - Auto Set Point
Display the closed loop (auto)
set point for control loop.
Monitor Device
Trend Information Within set point limits 75000 76-77 (R/W)
(/1000)
Loop 1 - Manual/Auto Mode
Transitions between open loop
(manual) and closed loop
(auto) control.
Monitor Device
Trend Information Off (0)
Manual (1)
Auto (2) Off (0) 80 (R/W)
Loop 1 - Manual Set Point
Display the open loop (manu-
al) set point for control loop.
Monitor Device
Trend Information -10000 to 10000 %
(two decimal places) 0 75 (R/W) (/100)
Loop 1 - Loop Action
Select the action of the Loop
as Indirect (heat only), Direct
(cool only) or Dual (heat/cool).
Configuration Loop
Settings 1 Off (0)
Heat (Indirect) (1)
Cool (Direct) (2)
Heat/Cool (Indirect/Direct) (3) Off (0) 653 (R/W)
Loop 1 - Loop Indirect (Heat)
Algorithm
Select method of control algo-
rithm used for Indirect (Heat)
for Loop 1.
Configuration Loop
Settings 1 On/Off (0)
PID (1) PID (1) 651 (R/W)
Loop 1 - Loop Direct (Cool)
Algorithm
Select method of control algo-
rithm used for Direct (Cool)
for Loop 1.
Configuration Loop
Settings 1 On/Off (0)
PID (1) PID (1) 652 (R/W)
Loop 1 - Failure Latching
Select to latch input failure. If
a sensor fails, an error is
generated. This selection will
latch intermittent error.
Configuration Loop
Settings 1 Off (0)
On (1) Off (0)