csmstr - Omega Engineering

MODULE CONFIGURATION
CSPID – PID MODULE PROGRAMMING
• The Heat Low Limit and Heat High Limit properties may be used to limit
controller power due to process disturbances or setpoint changes. Enter the safe
output power limits for the process. You may enter values in excess of 100% and
–100% to overcome limitations caused by power transfer values, such as gains
and offsets, which would otherwise limit the output to less than their maximums.
• The Cool Low Limit and Cool High Limit properties may be used to limit
controller power due to process disturbances or setpoint changes. Enter the safe
output power limits for the process. You may enter values in excess of 100% and
–100% to overcome limitations caused by power transfer values, such as gains
and offsets, which would otherwise limit the output to less than their maximums.
TRANSFER GRAPH
The power transfer graph illustrates the results of changes made to the power settings. The
blue line represents the cooling, while the red line represents the heating.
THE ALARMS TAB
The four “soft” process alarms may be used to monitor process status, and may be used to
actuate the module’s physical outputs. Otherwise, the bit alone may be monitored via the
system itself, or via external devices.
• The Mode property determines what behavior the alarm will assume. The table
below describes the various selections.
MODE
Absolute Low
Absolute High
DESCRIPTION
The alarm activates when the Process Value falls below
the Alarm Value. The alarm deactivates when the Process
Value goes above the Alarm Value + Hysteresis.
The alarm activates when the Process Value exceeds the
Alarm Value. The alarm deactivates when the Process
Value falls below the Alarm Value – Hysteresis.
REVISION 6 PAGE 23