Honeywell VRX180 user manual Pretune Abort messages, Pretune Abort Messages

Models: VRX180

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Online Operation Using Menus

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.

 

 

 

 

 

 

 

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Honeywell VRX180 user manual Pretune Abort messages, Pretune Abort Messages, Message Meaning/User action required