Retsch ZM 300, Руководство пользователя

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Error messages and remarks
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8 Error messages and remarks
8.1 Error messages
Error messages inform the user about detected device or program errors. An error message
indicates that a fault is present which automatically interrupts operation of the device or the
program. Faults of this type must be remedied before the device is next used.
MM 500 cryo
Error code Description Measures
E10 Overload The drive can withstand short-term overloads. In
the case of prolonged overload, self-protection
becomes active.
This can happen especially with high loads
(feeding the sample material too quickly, hard
sample).
•
Check whether there are any foreign
bodies in the interior.
•
Check whether the rotor can be moved
smoothly by hand.
•
Check whether the grinding process can
be carried out with reduced speed.
•
Switch off the main switch and wait 30
seconds before switching the device on
again.
E12 Motor brake Too many braking steps detected, causing
excessive heating of the brake resistor. This can
be caused by frequent and quick speed changes.
•
Check whether the grinding process can
be carried out with fewer speed changes.
•
Leave the machine switched on until the
cool down timer has expired.
•
Switch off the main switch and wait 30
seconds before switching the device on
again.
E20 Control error
•
Switch off the main switch and wait 30
seconds before switching the device on
again.
•
If the error persists, contact the Retsch
GmbH technical service.
E23 Fan error The fan is blocked and does not start.
•
Check whether the fan is blocked by a
foreign object.
•
Switch off the main switch of the ZM 300
and start the process again.
•
If none of the above causes can be
identified, contact the Retsch GmbH
technical service