Instruction Manual
NivuFlow 650
page 156
NF 650 - rev. 01 / 29.06.2020
Error Messages
46 Error message indicated, Cause of failure and Troubleshooting
#
Error message
Cause of failure
Troubleshooting
1
Q-Control
External
setpoint
Setpoint received
through analog
input is invalid
(1) Ensure that the cable between transmitter and
external setpoint generator is connected correctly.
(2) Make sure that the analog input settings match the
actual external setpoint spectrum.
2
Q-Control
Q invalid
Q-measurement is
invalid, controller
cannot work
Check speed and altitude measurement for correct
parameterization and measured values.
3
Q-Control
Torque
Torque input is
enabled; torque
value measured
by the controller
application is too
high
(1) Check digital input wiring; torque and measured
value signal.
(2) Check the parameterized torques in the transmit-
ter.
(3) Check the actual torque on the slide.
4
Analog
input
Value too
high
Analog input too
high
Make sure that the settings for the analog input match
the actual external setpoint spectrum.
Maximum value: 20.5 mA
5
Analog
input
Value too
low
Analog input too
low
Make sure that the settings for the analog input match
the actual external setpoint spectrum.
Minimum value: 3.75 mA with 4-20 mA
6
Air-ultraso-
nic sensor
Not suppor-
ted
Wrong sensor type
connected
(1) Make sure the air-ultrasonic sensor is intended for
connection to the transmitter.
(2) Make sure the air-ultrasonic sensor is correctly
connected.
(3) Check air-ultrasonic sensor and cable for visible
damage.
(4) Check whether the parameters of the air-ultraso-
nic sensor are correctly set.
(5) Restart the transmitter via >System< / >Service<.
(6) Contact NIVUS Hotline (serial number and exact
error message required).
7
Air-ultraso-
nic sensor
Communi-
cation
Sensor response
telegram invalid
(1) Make sure the air-ultrasonic sensor is intended for
connection to the transmitter.
(2) Make sure the air-ultrasonic sensor is correctly
connected.
(3) Check air-ultrasonic sensor and cable for visible
damage.
(4) Check whether the parameters of the air-ultraso-
nic sensor are correctly set.
(5) Restart the transmitter via >System< / >Service<.
(6) Contact NIVUS Hotline (serial number and exact
error message required).
