WESTLOCK CONTROLS CORPORATION
280 N. MIDLAND AVE., STE. 258, SADDLE BROOK, NJ 07663 TEL: 201-794-7650 FAX: 201-794-0913
www.westlockcontrols.com
10/5/2013
TECH-477/D.W.O. 21424
Page 136 of 206
of the output up to a value of 63.21% resulting from a jump
at the filter input. The engineering unit of this parameter is
always seconds.
Fail Safe
Fail Safe Mode: Defines reaction of device if communication fault is still
detected after fail safe time.
Fail Safe Default Value: Default value for the setpoint input if communication fault is
detected.
ALARM_HYS
Limit Hysteresis: Hysteresis expressed in the engineering units of the output
value scale. An alarm occurs when a value exceeds an
upper limit. The alarm’s status remains true until the value
drops below the limit minus the alarm hysteresis. The
directions are reversed for low limit detection. The
hysteresis is also used for warnings.
Alarm/Warning Limits
Upper Limit Alarm: Upper alarm limit in engineering units.
Upper Limit Warning: Upper warning limit in engineering units.
Lower Limit Warning: Lower warning limit in engineering units.
Lower Limit Alarm: Lower alarm limit in engineering units.
HI_HI_ALM
Unacknowledged Alarms: Unacknowledged alarms.
Status: Status for the upper alarm.
Time Stamp: The time of day when a change in limit stated was
detected that was unreported.
Cause: Cause of the upper alarm.
Alarm Output Value: Output value at the time of the upper alarm.
HI_ALM
Unacknowledged
Warnings:
Unacknowledged warnings.
Status: Status for the upper warning.
Time Stamp: The time of day when a change in limit stated was
detected that was unreported.
Cause: Cause of the upper warning.
Warning Output Value: Output value at the time of the upper warning.
LO_LO_ALM
Unacknowledged Alarms: Unacknowledged alarms
Status: Status for the lower alarm.
