Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE - Manual (Page 52)

Enter Your PressureĆalarm and TimeĆdelay 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 3ĆG
PressureĆalarm and TimeĆdelay Setpoints
Control Word ProĆSet 600 Addr. Value Description Units
MCC35 N41:31 Clamp PressureĆalarm Setpoint Clamp Pressure 2
MCC36 N41:32 ClampĆpressure TimeĆdelay Setpoint Time Measured in Seconds 1
MCC49 N41:45 Ejector PressureĆalarm Setpoint Ejector Pressure 2
MCC50 N41:46 EjectorĆpressure TimeĆdelay 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