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