Armstrong 4300 - Change to Open Loop (Bas) Control; Change to Sensorless Control; 14 Warnings and Alarms

installation &
operating instructions
Design Envelope 4300 and 4380 vertical in-line
pumping unit with integrated controls
46
param. name setup 2 (external sensor)
0-10 Active set-up 2
6-24
Terminal 54 low ref.
/feedback value
Minimum sensor value
6-25
Terminal 54 high
Ref./feedback value
Maximum sensor value
20-02
Feedback 1 source
unit
Unit of external sensor
20-12
Reference/feed-
back unit
Unit of external sensor
20-13
Minimum refer-
ence/feedback
Low limit of sensor
20-14
Maximum refer-
ence/feedback
Upper limit of sensor
20-21 Setpoint 1 Design setpoint
20-93
pid proportional
gain
Needs to be fine tuned on
site
Start
at 2
20-94 pid Integral Time
Needs to be fine tuned
on site
Start
at 1
22-43
Wake Up Speed
[Hz]
Need to be fine tuned
on site
Start at
20
13.3.2 change to open loop (bas) control
1 Change parameter 0-10 from 1 to 3
2 Connect the bas command on terminals 53 (+) and 55 (-)
3 Move switch s201 (beside terminal input 53) to on if the speed
command is 4-20mA, or leave it o if it’s 0-10Vdc
4 If the reference signal is neither 0-10Vdc nor 4-20mA, enter
the correct voltage or input range in parameters 6-10 to 6-13
5 The maximum speed (at 20mA or 10Vdc) can be adjusted in
parameter 3-03
6 The drive on/o status can be read as a dry contact between
terminals 05 and 06
7 The drive alarm status can be read as a dry contact between
terminals 01 and 02
8 Terminals 42(+) and 39(-) can provide a 0/4-20mA output
which by default is disabled, but can be configured to provide
speed feedback or sensorless flow
13.3.3 change to sensorless control
1 Change parameter 0-10 to 1
The unit will start controlling based on the pump design data
2 If the pump operation point needs to be changed, see the
parameters that need to be modified in Section 6.1 Sensorless
14.0 warnings and alarms
A warning or an alarm is signalled by the relevant led on the
front of the inverter and indicated by a code on the display.
A warning remains active until its cause is no longer present.
Under certain circumstances operation of the pump may still
be continued. Warning messages may be critical, but are not
necessarily so.
In the event of an alarm, the inverter will have tripped. Alarms
must be reset to restart operation once their cause has been
rectified. In many cases the auto reset function will restart the
pump. Alternatively, the Reset button on the control panel can
be pressed.
After a manual reset using the Reset button on the
control panel, the Auto On button must be pressed to
restart the pump.
If an alarm cannot be reset, the reason may be that its cause has
not been rectified, or the alarm is trip-locked (see also table on
following page).
Alarms that are trip-locked oer additional protection, means
that the mains supply must be switched o before the alarm can
be reset. After being switched back on, the inverter is no longer
blocked and may be reset as described above once the cause
has been rectified.
Alarms that are not trip-locked can also be reset using the
automatic reset function in par. 14–20 Reset Mode (Warn-
ing: automatic wake-up is possible!) If a warning and alarm is
marked against a code in the table on the following page, this
means that either a warning occurs before an alarm, or it can
be specified whether it is a warning or an alarm that is to be
displayed for a given fault. This is possible, for instance, in par.
1–90 Motor Thermal Protection. After an alarm or trip, the mo-
tor carries on coasting, and the alarm and warning flash on the
inverter. Once the problem has been rectified, only the alarm
continues flashing.