DuraBlue II Customer Product Manual - 第71页

LEDs on component keys Left display and scroll key Component temperature display Operation 4-9 Part 1126931_01  2018 Nordson Corporation Monitor Component Temperatures The actual temperature of each heated component—the…

Ready LED

Operation

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Part 1126931_01

 2018 Nordson Corporation

Monitoring the Melter

The melter provides indicators that allow you to:

 Quickly confirm that the melter is operating correctly

 Monitor the actual temperature of the tank group and each hose

and applicator

 Monitor the speed of the motor(s)

 Identify melter faults

 Determine when service is required

The melter automatically determines the number and receptacle of all

hoses and applicators that are connected to it. Refer to Heated Components,

earlier in this section, for information on identification of heated components.

Confirm that the Melter is Operating Correctly

The ready LED turns on (green) when all of the heated components

are within 3 C (5 F) of their set‐point temperature.

The ready LED will not turn on, or will turn off, if any of the following events

occur:

 The ready delay is still counting down.

 The operator or a remote input places the melter in the standby

mode.

 The seven‐day clock places the melter in the standby mode.

 There is a fault (the fault LED will turn on).

Refer to Monitor Melter Faults and Using Function Keys in this section for

information about melter faults and using the seven‐day clock and standby

functions. Refer to Parameter 4 in Appendix B, Operating Parameters, for

information about the ready delay.

Heated components with a set‐point

temperature of zero degrees are skipped

during the automatic scan cycle.

The set‐point temperature of the tank and

the pump cannot be set independently.

The time remaining on the ready delay

appears in the right display at the end of each

scan cycle.

Appendix B, Parameter 4

You can override the seven‐day clock at any

time. If the clock has turned the heaters off,

pressing the heaters key will turn the heaters

back on. If the clock has placed the melter into

the standby mode, pressing the standby key

will return the heated components to their

assigned set‐point temperature.

Function Keys

LEDs on component keys

Left display and

scroll key

Component temperature display

Operation

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Part 1126931_01

 2018 Nordson Corporation

Monitor Component Temperatures

The actual temperature of each heated component—the tank and each hose

and applicator—can be checked via normal mode or by manually selecting

and checking each component.

By default, the melter remains in the automatic scan mode except when:

 The melter is placed into the setup mode

 The set‐point temperature of all hoses and applicators is set to zero

degrees

 A fault occurs

To check component temperatures using the automatic scan mode

1. When the ready LED is on, observe the LEDs on the component keys.

2. When the LED on the key that represents the desired component

group (tank, hose, or applicator) turns on, observe the left display until it

indicates the position number of the specific component you want to

check.

3. When the position number of the desired component appears in the

left display, observe the right display to determine the component's

actual temperature.

To manually check a component's temperature

1. Press the key (tank, hose, or applicator) that represents the component

group you want to check.

The automatic scan stops and the left display indicates the number of the

first sequential component in the selected component group. The right

display indicates the component's actual temperature.

NOTE: When the tank key is pressed, the left display does not indicate a

component number (blank display).

2. If the first sequential component is not the component you want to check,

use the left‐display scroll key to change to the correct

component number.

The right display indicates the actual temperature of the

selected component.

3. Press the Setup key twice to return to the automatic scan mode.

Operation

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Part 1126931_01

 2018 Nordson Corporation

To manually check a component's temperature (contd)

When you scroll the left display past the

number of the last sequential component in a

component group, the number of the first

sequential component in the next component

group appears in the left display.

The melter will return to the automatic scan

mode two minutes after the last key is pressed.

When you press the Tank key, it is the pump

temperature that is actually indicated in the

right display. To check the actual temperature

of the tank, simultaneously press the Tank key

and the left‐display scroll key.

The default unit for temperature display is

degrees Celsius (C). This may be changed to

degrees Fahrenheit using operating Parameter

20.

Appendix B, Parameter 20

The LEDs on each component key will change

from green to yellow if any component in the

component group drops more than 3 C (5 F)

below its assigned set‐point temperature.

You can check the set‐point temperature of a

component at any time, by pressing the

right‐display UP scroll key. Holding down the

scroll key while the melter is in the automatic

scan mode reveals the set‐point of each

component that is scanned.