DuraBlue II Customer Product Manual - 第85页
Heater key Master pump enable key/LED Operation 4-23 Part 1126931_01 2018 Nordson Corporation Using Function Keys The control panel provides the following standard and special function keys: Standard function keys He…
Operation
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Entering a Password
If the melter is password protected, a valid password must be entered before
any set‐point temperature or melter parameter can be changed.
To enter a melter password
1. Press the Setup key.
The left display indicates Parameter 0 (flashing) and the right
display indicates 4000.
2. Press the Enter key.
The right display begins flashing.
3. Use the keypad to enter the melter password.
4. Press the Enter key.
One of the following occurs:
If the password is correct, the left display indicates Parameter 1.
If the password is incorrect, the left display remains at 0 and the
right display momentarily indicates dashes (‐‐‐‐) and then returns to
4000.
If the password is incorrect, re‐enter it and then press the Enter key.
The melter will automatically revert back to the
password‐protected mode two minutes after
the last key press (any key). To force the
melter back into the password protected mode
before two minutes has elapsed, press the
Setup key twice.
The melter password is created and
enabled/disabled during system setup.
Setting Up the Melter in Section 3,
Installation
Heater key
Master pump enable key/LED
Operation
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Using Function Keys
The control panel provides the following standard and special function keys:
Standard function keys
Heater
Pump (1 and 2)
Setup
Special function keys
Seven‐day clock
Standby
CAUTION! Unintentionally activating function keys can, under the
correct circumstances, have undesirable effects on the melter or the
manufacturing process. Only personnel who are familiar with the melter's
setup and its connection with the manufacturing process should use the
function keys. Improper use of the function keys can result in erratic process
behavior or personal injury.
Heater Key
Use the heater key to manually turn the component heaters on and
off. Pressing the heater key overrides the control (on or off) of the heaters
by either the seven‐day clock feature or a remote input. The LED on the
heater key illuminates when the heaters are on.
When a fault occurs (refer to Monitor Melter Faults in this section) the heaters
automatically turn off. The heater key is used to turn the heaters back on after
correcting a fault condition.
Master Pump Enable Key
Use the master pump enable key to enable and stop the pumps. The LED is
green when the pumps are enabled and the melter is ready.
If the automatic pump on feature (Parameter 8) is disabled, then the master
pump enable key must be used to start the pumps when the melter is ready.
If any of the inputs are set up to use the pump enable/disable control option,
the pump motor will not start until the pump is enabled and the correct
voltage is applied to the input contacts. If the pump is enabled, but the input
voltage is not present, the master pump enable key LED will flash green.
Setup key
Seven‐day clock key
Operation
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Setup Key
Use the setup key to place the melter into and take the melter out of
the setup mode. When the melter is placed into the setup mode, the
automatic scan stops and the left and right displays are used to select and
read or edit operating parameters.
Seven‐Day Clock Key
Use the seven‐day clock key to turn the melter's clock feature on and off.
When the clock is on, the temperature of each heated component is
automatically regulated based on a set of user‐defined schedules.
To accommodate daily shift work and non‐working days, four
clock schedules are available. Schedules 1, 2, and 3 are used to specify
when the heaters should turn on and off or when the melter should enter and
exit the standby mode. Schedule 0 is used to keep the melter in the last
condition dictated by the clock (heaters on or off, or standby).
When a clock schedule calls for the heaters to be on, the heaters
are regulated at their pre‐assigned set‐point temperatures. When the
clock activates the standby mode, the set‐point temperature of each
component is temporarily reduced by a pre‐set standby delta.
Refer to Appendix B, Operating Parameters, for information about setting up
the seven‐day clock and the standby delta.
If the melter is switched off while the clock is on,
the clock will automatically turn back on the next
time the melter is switched back on.
If the heaters are manually turned off at the time
that a clock schedule calls for the heaters to be on,
the heaters will not turn back on until the next clock
schedule calls for them to be on.
The clock will still operate when the melter
is faulting or is in the setup mode.
If F4 appears in the right display when you press
the clock key, the internal clock function has failed.
Section 7, Troubleshooting