Sterling SDA 1000-5100 用户手册

Large Dehumidifying Dryers 

Controls 

28 

PV 

  8.8.8.8    

Process Value 
Numeric LED 

During normal operation, the process value (PV) 
numeric LED indicator displays the process 
temperature at the To Process thermocouple. It 
also lists parameters during setup and error 
messages if any errors occur. 

SV 

8.8.8.8

 

Set Value  
Numeric LED 

During normal operation, the set value (SV) 
numeric LED indicator displays the process set 
point temperature selected for the dryer. The dryer 
then maintains this set point temperature.  This 
LED indicator also displays parameter and pre-set 
function values during configuration setup. 

OUT1 

Out 1 LED 

Lit when Control Output 1 is on.   The Out1 
indicator lights when the controller signals the 
process heaters to be energized. 

OUT2 

Out 2 LED 

Lit when Control Output 2 is on.  Not used in 
this application. 

 AT 

AT LED 

Flashes during auto-tuning in process value (PV) 
screen.  

 

ALARM1 

ALARM 1 LED 

Lights in the Operation Indicator Section when 
the output function assigned to auxiliary output 
1 turns on.  The ALARM1 indicator lights when 
the process temperature falls below the set point 
temperature by more than the alarm deviation 
value. Advisory alarm does not interrupt operation 
of the dryer. 

 
 
 

ALARM2 

ALARM 2 LED 

Lights in the Operation Indicator Section when 
the output function assigned to auxiliary output 
1 turns on.  The ALARM2 indicator lights when 
the process temperature exceeds the set point 
temperature by more than the alarm deviation 
value. Alarm output de-energizes the heaters. 
Heaters re-energize when the temperature falls 
within the acceptable range.