YOKOGAWA UP55A - Ramp-Prioritized PV Start (STC=RAMP)

9-9
IM 05P02C41-01EN
Program Pattern Functions
9
9.3.2 Ramp-prioritizedPVstart(STC=RAMP)
Description
ExampleofasoaksegmentforsegmentNo.2ofthecontrolprogrampattern
Whenramp-prioritizedPVstartistheselectedstartcondition,thecontrolprogrampattern
ramp is the start trigger. The control program pattern contains points C1, D1 and E1.
The retransmission program pattern will start at the same time as the control program
pattern does. For example, if C1 is the selected start point for the control program
pattern, C2 will be that for the retransmission program pattern.
TSP
SSP
SSP
Segment 1 Segment 2 Segment 3
Segment 4
a
b
c
d
e
E1
E2
D1
D2
C1
C2
A1
A2
B1
B2
Program pattern
for control
Program pattern
for retransmission
Program operation start (PRG)
Time
Setpoint
Program start point is determined by the control PV as follows.
PV at start Operation-startingpointfor
control
Operation-startingpointfor
retransmission
a C1 C2
b C1 C2
c C1 C2
d D1 D2
e E1 (SSP) E2 (SSP)
9.3SettingtheProgramStartingConditions(STC)