Watlow Series 734 Program Bedienungsanleitung PDF herunterladen (Seite 14)

Alarms & Error Codes, Chapter 5

WATLOW Series 733/734 Program Manual

Error Codes

Problem Probable Cause Solution

Er10 -

Stack overflow error

Er11 -

Zone 1 open sensor error

Er12 -

Zone 1 shorted sensor

Er13 -

Zone 2 Open sensor

Er14 -

Zone 2 shorted sensor

Er15 -

Zone 1 loop error

Er16 -

Zone 2 loop error

Microprocessor error

Open sensor

• Incorrect sensor type

• Measuring temperature

outside the sensor

range

Open sensor

• Incorrect sensor type

• Measuring temperature

outside the sensor

range

• Reversed sensor leads

• Faulty heater or gas

valve

• Shorted sensor

• Faulty output switching

device

• Blown fuse to heater

• Incorrect Pb1 value

for thermal system

See Er15 Probable

Cause above.

• Incorrect Pb2 value for

thermal system

• Cycle power

• Check the InP1 para-

meter. Verify it

matches your sensor.

• Check the InP1 para-

meter. Verify it

matches your sensor.

• Check the InP2 para-

meter. Verify it

matches your sensor.

• Check the InP2 para-

meter. Verify it

matches your sensor.

• Check heater or gas

valve

• Check sensor

• Check output switching

device

• Check fuse to heater

• Auto-tune the control

See Er15 Solution above.

• Auto-tune the control

NOTE:

For Er10 through

Er14, first check

the sensor and

connections for a

reversed or open

sensor before

trying the solution

listed.

NOTE:

Er06 through Er09,

and Er11 through

Er14 are self

clearing errors if

the condition that

caused the alarm

has been taken

care of.

Table 2 -

Continued

Error Code Actions

• Error codes will result in these conditons:

• The alarm outputs are in their alarm state (de-energized).

• The display alternately flashes the process value and error code.

• All keys are inactive except for the Temperature key . This key snoozes the

error code and display for 30 seconds.

• The above conditions occur regardless of the LOC value, or the presence of the

Setup, Service or Calibration Menus.

• To clear a corrected error…

• Cycle power to the control.

• Enter the Program mode by pressing the keys simultaneously for

3 seconds.

• Press the Menu 12 key

once.

• Press the Time key . The EC (Error Clear) prompt is displayed.

• Press the Temperature key , and the error is cleared. Press the Time key

twice, and you're back to the Operation mode [0)º0].

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 20

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