Watlow MICRODIN Manual de usuario descargar pdf (Pagina 20)

20 Watlow MicroDIN Quick Start Guide

Corrective Action

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

etc. for energized condition and proper connection

• Measure power upstream for required level

• Check wire size

• Check for bad connections

• Check and reset unit DIP switches 1-6 to correct address

• Check and reset unit DIP switch 8 to correct baud rate

• Look for a break in the daisy chain

• Verify correct connections and test wiring paths

• Check converter box wiring and its documentation

• Reconfigure computer's COM port setup and verify communications ok

• Check the communication card documentation for setable variables, operational testing

• Restart COMS software, check for settings agreement. Verify COM bus active

• Check sensor connections

• Check sensor connections and sensor wiring

• Change the Sensor Type parameter (Input Group) to match the sensor hardware

• Measure power upstream for required level

• Verify that the temperature surrounding unit is 32° to 149°F (0° to 65°C)

• Check sensor function. The Open Loop Detect parameter (Error Group) indicates it may be broken

• Check the Calibration Offset parameter (Input Group) value; set it to a lower level

• Send the alarming MicroDIN unit a “clear alarm” signal (Modbus

™

: 331)

Note: The condition causing the alarm must also be resolved for the alarm to clear

• 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 °F/°C setting

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

• Return unit to factory

• Cycle power to unit

• Return unit to factory

• Cycle power to unit

• Recalibrate unit

• Return unit to factory

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Watlow MICRODIN Manual de usuario Pagina 20