Honeywell herculine 2000 User Manual

Page of 128
Start-Up/Operation 
Operating Displays 
84 
  HercuLine™ 2000 Series Actuator - Installation, Operation and Maintenance Manual 
Revision 7 
  
 7/08 
Operating Displays 
Pressing the DISPLAY key cycles the display through a number of operating parameters. Table 34 shows a 
number of sample displays that can be shown during operation.   
Table 34 Typical Operating Displays 
 
Display 
Description 
 
  0.0 
INP  
Input
  
Upper Display = Shows input value 
 
Lower Display = prompt 
 
 
00 
OP   0.5 
Output
 
Upper Display = Shows input value  
 
Lower Display = Shows output value 
 
 
100.0 
DE  99.9 
Deviation
—  
Upper Display = Shows input value 
 
Lower Display = Shows value of deviation of  
  sensor 
from 
input. 
 
 
   0.6  
POS   
Position
  
Upper Display = Shows value of position sensor. 
 
Lower Display = prompt 
NOTE:  Position display will show negative values, if appropriate.   
 
NOTE:  When the AUTO/MANUAL key is pressed, placing the actuator in manual mode, the local display 
mode is forced to the Position display (POS). The Manual L.E.D. indicator should be lit. When the 
AUTO/MANUAL key is pressed again, placing the actuator in auto mode, the local display mode is forced to 
the Output display (OP). The Auto L.E.D. indicator should be lit. Set up parameters can still be accessed.   
Motor Stall  
The actuator is equipped with a low current motor that prevents against burnout if the motor becomes stalled.  A 
stall condition occurs when the motor position does not follow the input, or if the motor does not reach setpoint 
within a given period of time.   
When the stall condition occurs, a stall alarm is indicated. The actuator sets the STALLED LED indicator ON 
and also any other alarms or relay contacts that are programmed to close whenever a stall condition is detected.  
The motor drive for the indicated direction is shut off approximately 3 minutes after the stall alarm is indicated. 
Also, the appropriate CW/CCW LED direction indicator is turned OFF.  
The maintenance statistic for accumulated stall time gets updated during the stalled condition.  
To reactivate the drive in the stalled direction, change the position of the drive to the opposite direction and set 
at a point below where the stall originally occurred, then start the drive in the stalled direction.  
Note: A stall condition is not detected if a limit end of travel limit switch is activated while the motor is moving 
toward the setpoint, or if the motor position is within 0.5% of calibrated motor 0% and 100% end points.”