Sera CONTROL Pro, Operating Manual

Page: 24 / 28

24 www.sera-web.com
TROUBLESHOOTING / FAULT CLEARANCE
sera products are sophisticated technical products which are only shipped after having been thoroughly tested and checked at
our factory.
Nevertheless, if faults occur, they can be detected and rectified easily and quickly based on the error messages in the display
and the instructions in the tables.
Error messages (E)
e.g. error memory: E02:1 ► second error in the memory ► diaphragm rupture
Error message Possible cause Corrective action
1 DRD 2 Dr
y run
4 Parametrisation error 8 No stroke detection 16 Analogue signal < 3.5mA 32 Analogue signal > 20.5mA 64 Stroke sensor error 128 Error in power driver 256 Electronics error 512 Mains voltage too low 1024 Mains voltage too high 2048 Over
temperature, pump shutdown
4096 Memor
y error
8192 Shor
t circuit / overload 24
V ext.
16384 Electronics error 32768 Electronics error
█ █ █
Electrical data of the pump do
not match mains data.
Check order data.
Check electrical installation.
█
Broken wire in the analogue
signal line.
Check the analogue signal
line and repair if necessary.
█ █
Actual analogue signal (e.g.
0-20 mA) does not match the
analogue input specification
(4-20 mA).
Adjustment of the actual
analogue signal to the speci-
fication of the analogue input
(4-20 mA).
█
Short circuit or overload of
pin 4 of the control socket.
Output has been switched off
for safety.
Check peripherals connected
to the control socket and
eliminate short circuit. Then
restart pump.
█
Overpressure, drive error,
stroke sensor malfunction.
Check the back pressure,
restart the pump with Start/
Stop.
█ █ █ █ █ █ █
Contact sera .
█
Order diaphragm kit.
█
Overtemperature due to
overload or too high ambient
temperature
Check ambient temperature.
█
Medium level in storage tank
too low or no medium.
Fill storage tank.
█
Sensors of the dosing pump
defective.
Contact sera .