Pump mode key
Troubleshooting
6-10
Part 1120277_01
E 2012 Nordson Corporation
Pump Operational Status
NOTE: To use the pump operating variables table, ensure that the
Pump mode key LED is on and that the motor speed is at a setting other
than 0. In addition, ensure that the reservoir is not empty.
When diagnosing apparent melter malfunctions, it is helpful to understand
the following variables that control the status of the pump—enabled or
disabled—and the associated indication that is provided by the pump LED.
S Use/activation of a remote input to control the motor
S Use of parameter 8, Automatic Pump On
S Ready status of the melter
S Activation of a switched input (handgun or footswitch)
S Activation of the pump key
Table 6-4 provides the status of the pump LED for each combination of the
pump operating variables.
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