Technical data

Troubleshooting
6-3
P/N 7135049A
E 2007 Nordson Corporation
VBC_Siemens
No Material (Motor does not Rotate)
Problem Possible Cause Corrective Action
System not yet ready Undertemperature during heatup
phase
Wait until the melter has heated up
and when appropriate until System
ready delay time has expired
(System ready appears in the
status line).
System currently not ready Undertemperature during operation
Material was refilled
Wait until the melter is heated
Motor not switched on − Switch on motor
Motor startup protection
activated
Standby entered Switch on the motor(s) again
Undertemperature during operation −
Speed (rpm) not set The parameter Max. pump speed
in key-to-line is on 1 min
-1
Set speed (RPM)
(Refer to section Operation /
Control Panel − Overview − / M3)
Key-to-line mode selected,
however melter should be
in manual mode
− Switch to manual mode
No external motor enabling
via interface Standard I/O
− Activate the corresponding
contacts of the interface. To do this,
the motor enable key must be set
to Control panel AND standard I/O.
Key-to-line selected but no
line speed signal present
− Provide line speed signal
Check whether the type of input
signal is the same as that selected
on the control panel
(analog/frequency)
Threshold switch not
properly set
− Check and set values on control
panel
Standby entered − Exit or wait until standby period has
expired
Continued...