Watlow Series V4 Manual de usuario descargar pdf (Pagina 12)

Corrective Action

• Check switches, fuses, breakers, interlocks, limits, connectors,

etc. for energized condition and proper connection.

• Measure power upstream for required level. Check part number for input power required.

• Check wire size.

• Check for bad connections.

• Configure output as an alarm.

Check alarm set points..

• To clear the alarm, correct the alarm condition; check to see if the alarm is latched.

• Check the alarm sides setting.

• Check the alarm type setting.

• Check the alarm logic for compatibility with system peripherals and annunciators.

• Check the power limit setting.

• Check the operation mode.

• Check the alarm output function.

• Check the °C or°F setting.

• Check the calibration offset value; set it to a lower level.

)

• Sensor input generated a value lower than allowable signal range, or A/D circuitry malfunctioned. Enter a valid

input. Make sure

[``In]

parameter (Setup Menu) matches your sensor and DIP switches are set accordingly.

• Microprocessor is faulty; consult factory.

• Unless power interruption occurred while controller was storing data, nonvolatile memory is bad; consult factory.

• A/D circuit is underrange. Check sensor; if functioning properly, consult factory. Make sure

[``In]

parameter

(Setup Menu) matches your sensor and DIP switches are set accordingly.

• A/D circuit is overrange. Check sensor; if functioning properly, consult factory. Make sure

[``In]

parameter

(Setup Menu) matches your sensor and DIP switches are set accordingly.

Output 2 Wiring

Figure 12a – Switched DC, Open Collector

V4T _ - _ C _ _ - _ _ _ _

unregulated

V+

V—

Internal Circuitry

External

Load

1 2

OFF

1 2

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 20 21

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Watlow Series V4 Manual de usuario Pagina 12

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