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Digital Dosing Units
55
ERROR CODES
Code Definition Possible Reason/Solution
A001 Strap “safety switch” is missing. Manufacturer Service.
A002 The nominal current of the dosing motor
(=100%, see name plate) is being
exceeded for more than 2 seconds by
30% or for a maximum of 0.5 seconds
by 80%.
Dosing motor defective or jammed.
Check the dosing motor and exchange it
if necessary. Check whether the dosing
disc is jammed by material and remove
the material if necessary.
A003 The nominal current of the dosing motor
(=100%, see name plate) is being
exceeded for more than one minute.
Dosing motor defective or jammed.
Check the dosing motor and exchange it
if necessary. Check whether the dosing
disc is jammed by material and remove
the material if necessary.
A004 Excess temperature. The temperature
within the controller housing is > 85°C
Check whether the cooling plate at the
back of the controller is sufficiently
cooled down. Use fan if necessary.
A005 The encoder (pulse generator) does not
emit any pulses for approximately 2
seconds.
If dosing motor does not turn, check
whether the dosing disc is jammed by
material and remove the material if
necessary. If disc is free, check the
dosing motor, exchange if necessary. If
motor operates, but alarm persists,
check speed encoder output. Replace as
necessary.
A006 For approximately 4 seconds, there is a
deviation of the motor speed of more
than 20% from the nominal rotational
speed.
Defect at the dosing motor. Check
dosing motor, exchange if necessary.
Check whether the dosing disc is
jammed by material and remove the
material if necessary. Power supply part
or control out of order. Manufacturer
Service.
A007 Dosing motor stops or doesn’t work. Brake at the dosing motor out of order.
Control system out of order.
Manufacturer service.
A008 The screw retract time of the processing
machine is shorter than 0.1 seconds.
The unit cannot be operated in
combination with this processing
machine.
A009 The calculated speed of the motor is
either too high or too low.
Check basic parameter settings and
recipe, modify if necessary. May require
changing to different sized dosing disc.
A0010 The feed station is not able to meter the
desired recipe.
Check basic parameter setting and
recipe, modify if necessary. May require
changing to different sized dosing disc.
A0011 The raw material probe is not covered Refill Material.
A0012 The additive probe is not covered. Refill material.
A0014 Power failure interrupted run cycle. Clear alarm after power restored.
A0015 EEPROM data loss, EEPROM not
programmed.
Manufacturer Service.
A0016 No communication between HOST and
unit.
Check cable fittings. Manufacturer
Service.