Table of Contents
Advertisement
Pretune Abort messages
One of the following messages is displayed when an unusual event has aborted the pretune. "PTA"
means "Pretune Abort."
PTA-WARM START
PTA-WENT OFFLINE
PTA-LOOP STATUS
PTA-AM SEL CHNGE
PTA-SP SEL CHNGE
PTA-OUT MOVED
PTA-LOOP NOT CFG
PTA-BAD STEP SIZ
PTA-ONOFF LOOP
PTA-BAD SN RATIO
PTA-BAD ID VALUE
PTA-DB ACCESS
Table 7-14 Pretune Abort Messages
Message
PTA-SP MOVED
PTA-LOOP OS
PTA-BAD OSC
PTA-TASK FAIL
Video Recorder – User Manual
Online Operation Using Menus
Meaning/User action required
A warm start occurred during pretune. Repeat
pretune.
Instrument went out of Online mode during pretune.
Repeat pretune.
Loop has PV that is bad (i.e. failed sensor)
OR
PV is a constant value such as from an upstream
block in manual
OR
Loop has back calculation value from a downstream
block that is bad or is the result of the downstream
block being in manual.
Repeat pretune.
Loop switched between automatic and manual
modes. Repeat pretune.
Loop was in automatic mode and an attempt was
made to switch between Setpoint #1 and Setpoint #2.
Repeat pretune.
Loop was in manual mode and loop's output value
changed. Repeat pretune.
Loop was in automatic mode and the setpoint value
changed. Repeat pretune.
Loop is out of service. Fix loop before repeating
pretune.
Loop is not configured. Configure loop before
repeating pretune.
Step size is turned off. Set step size to a value
before repeating pretune. See Table 7-11.
Cannot pretune an on/off type loop.
Increase step size. See Table 7-11.
Repeat pretune with smaller gain or proportional
band in loop.
Increase step size. See Table 7-11.
Unknown hardware problem. Consult service.
Unknown hardware problem. Consult service.
241
Advertisement
Table of Contents
