Master pump enable key/LED
Pump mode key and LED
Motor start/stop key and LED
Operation
4-4
Part 1126931_01
2018 Nordson Corporation
Starting the Melter (contd)
CAUTION! Do not operate Nordson pumps without material. Before enabling
the motor(s), ensure that the tank is filled.
3. Press the master pump enable key to enable the pump(s).
The LED on the key turns yellow to indicate that a pump is enabled, but
not running.
4. Melters equipped with the optional motion switch: Place the motion
switch in the ON position.
5. Press the pump mode key(s) to select the manual (LED on) or automatic
(LED off) mode.
6. Press the pump enable key(s) on the motor control panel(s) to enable the
motor(s). The LEDs turn on when a motor is enabled:
Manual Mode—If the system is at ready status (master pump enable key
LED is green) at the time a pump enable key is pressed, then the
motor(s) will start. If the system is not at ready status (master pump
enable key LED is yellow), wait until the LED is green, and then repress
the pump enable key(s).
Automatic Mode—If the system is at ready status (master pump enable
key LED is green) at the time a pump enable key is pressed, then the
motor(s) will start. If the system is not at ready status (master pump
enable key LED is yellow), the motor(s) will start automatically when the
system reaches ready.
NOTE: If any one of standard inputs 1-4 (Parameters 30-33) are being
used and if either control option 3 (Motor 1 Enable/Disable) or control
option 11 (Motor2 Enable/Disable) is selected, the pump enable keys
have no effect. Refer to Setting Up Inputs/Outputs in Section 3,
Installation, for information on connecting and setting up inputs/outputs.
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