Pump speed display
Troubleshooting
6-5
Part 1126931_01
2018 Nordson Corporation
Motor Control Faults
Table 6‐2 lists the motor control fault codes that may appear on the pump
speed display(s).
Table 6‐2 Motor Control Faults
Motor Control Fault Possible Cause Corrective Action
no EnA (motor control fault code
shown on pump speed display)
Master pump enable key not
turned on
Press the Master pump enable
key until the LED is illuminated.
hOt (motor control fault code
shown on pump speed display)
Motor thermostat open Wait for the motor to cool, ensure
that the pump speed setting is
not too low, and then restart the
pump. If the hOt code continues
to appear, troubleshoot the
problem that is causing the motor
to overheat, such as binding or
blockage in the pump, a locked
pump rotor, etc.
Displayed rpms do not match
motor speed
Pump speed display not
calibrated
Calibrate the pump speed
display. Refer to Calibrating the
Pump Speed Display.
Motor control not operating as
expected
Improper motor control
parameter settings
Check motor control parameter
settings. Refer to Changing a
Motor Control Parameter in this
section.
To Next Page
Loading...
