Nederman SAVE 73009058, Original User Manual

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SAVE
29 QMM095(A)
EN
8 Troubleshooting
NOTE!
All troubleshooting and fault remedying activities may be performed by
skilled competent staff only, with knowledge of the plant function and build-up.
If there is an alarm or warning in the SAVE, the first step is to make sure that
the system has been properly configured and that the installation settings made
in the sections above are correct.
Table 8-1: Troubleshooting for alarm list
Code Description Possible cause Recommended solution
101
SAVE Module # communication
error
SAVE module loses communication with the main
controller for more than 30 seconds.
Check the radio
communication set-up - see
Installation and service
manual
102
Extraction fan # Modbus
communication error
SAVE Controller loses communication with the VFD for
more than 30 seconds.
Check the radio
communication set-up - see
Installation and service
manual
103 Pressure sensor # Modbus
communication error
Some of pressure sensors in respective branch or duct
- loses communication with the SAVE Controller when
connected over Modbus for more than 30 seconds
Check the radio
communication set-up - see
Installation and service
manual
201 Main Duct velocity is low
When main duct velocity is lower than the accepted
threshold (Adjustable setpoint on UI) for more than
300 seconds
Check if system is free from
leakage.
Check if VFD is working
on correct parameters.
202
Branch # velocity is low When Independent branch velocity is lower than the
accepted threshold (Adjustable setpoint on UI) for
more than 300 seconds.
Check if system is free from
leakage.
Check if VFD is working
on correct parameters.
301 System running in Bypass Mode
Operator manually flip the toggle switch to Bypass
when malfunctioning.
Check the system, if possible
switch to AUTO mode.
302 Damper # is in service (closed)
Operator manually puts a specific damper in service
from UI.
This is only Information,
investigate if needed.
303 Fan # in sleep mode
No machines are active for certain amount of time and
the extraction fan go to sleep mode.
This is only Information,
investigate if needed.
304 Scheduled Cleaning is active Scheduled cleaning is active.
This is only Information,
investigate if needed.
401 Damper # is not open
Damper open, REED switch status is not satisfied. Check Open position sensor.
402 Damper # is not closed
Damper close, REED switch status is not satisfied Check Close position sensor
If this does not solve the problem, contact NEDERMAN.
9 Acronyms
Table 9-1: Acronyms
ID Definition
HMI Human Machine Interface
UI User Interface
SAVE Smart Air Ventilation Economics
VFD Variable Frequency Drive