bürkert 8623-2 Betriebsanleitung Seite 86

7 ERROR MESSAGES
Display
Frequency 1 < 2 Hz or
ERR0
sensor failure at the 1st
frequency input
Frequency 2 < 2 Hz or
ERR1
sensor failure at the 2nd
frequency input
ERR2
Frequency 1 > 1000 Hz
ERR3
Frequency 2 > 1000 Hz
ERR4
Flow value > 655
Standard signal outside the
ERR5
range (4 - 20 mA, 0 - 10V)
Regulation not possible as
set-point too large
ERR6
The manipulated variable for
ERR7
the proportional valve is
greater than 95%
ERR8
Internal error
EXLO ≥ EXHI only in "external
ERR9
set-point" mode
Operating Instructions No. 803 052
Cause
Check the flow sensor or its connection to the
regulator
Check the flow sensor or its connection to the
regulator
Install a sensor that corresponds to the flow
Install a sensor that corresponds to the flow
Use another unit (UNIT)
Check the standard signal
"Internal/External set-point" mode: reduce
the set-point or use a different flow sensor.
"Ratio Control" mode: reduce the ratio fac-
tor or use a different flow sensor
Increase the pressure in order to achieve the
required set-point with the selected
proportional valve
Return the unit to the manufacturer
Set up the values correctly (see 6.6.4)
Correction
85