Manual

Enter Y our Pressurealarm and T imedelay Values Here
Configure the QDC Module's
Inputs and Outputs
Chapter 3
3-19
Set Up Maximum Pressure Alarms and Time Delays
The QDC module continuously monitors clamp and ejector pressure
inputs. When it detects that the pressure equals or exceeds a preset
pressure alarm setpoint, the QDC module sets an alarm bit. A setpoint of
zero disables the associated alarm.
To guard against nuisance alarms caused by noise spikes or pressure
transients, you can set a time-delay so the QDC module must monitor
continuous excessive pressure for an amount of time before setting the
high pressure alarm. A setpoint of zero disables this delay.
Configure the QDC module for pressure alarms as follows:
1. Determine these values for clamp and/or ejector pressure alarms:
pressure-alarm setpoint
time-delay setpoint
2. Record non-zero setpoints on Worksheet 3-G for the pressure alarms
and time delays you want to use.
3. Download them to the QDC module using the procedures presented
earlier in this chapter.
Worksheet 3G
Pressurealarm
and T imedelay Setpoints
Control Word ProSet 600 Addr. Value Description Units
MCC35 N41:31 Clamp Pressurealarm Setpoint Clamp Pressure
2
MCC36 N41:32 Clamppressure Timedelay Setpoint Time Measured in Seconds
1
MCC49 N41:45 Ejector Pressurealarm Setpoint Ejector Pressure
2
MCC50 N41:46 Ejectorpressure Timedelay Setpoint Time Measured in Seconds
1
1
Time
2
Pressure
00.00 to 00.99 Seconds 0000 to 9999 PSI
000.0 to 999.9 Bar