Display Mode; Quick Menu; Air Volume Measurement And Setting - Dantherm DanX 2/4 XKS Installation, Commissioning And Service Manual

4. COMMISSIONING

4.3.1.1 Display mode

In normal operation, one item of operating data can be displayed continuously at the
operator's own choice. By means of the [+/-] keys the following options can be selected in
Display mode:
Output frequency [Hz]
•
Air volume set point [%]
•
Output current [A]
•
Output power [kW]
•

4.3.1.2 Quick menu

Using the [QUICK MENU] key, it is possible to access the 14 most important parameters of
the frequency converter. When the [QUICK MENU] key is activated in Display mode, the
Quick menu will start. Scroll through the quick menu using the [+/-] keys and change the
data values by first pressing [CHANGE DATA], then change the parameter value with the
[+/-] keys and save the new value by pressing [CHANGE DATA]. The Quick menu
parameters are:
Parameter 215 Air volume min set point - (How to change the parameter see 4.3.2)
•
Parameter 216 Air volume max set point - (How to change the parameter see 4.3.2)
•
Parameter 102 Motor power - (See motor type plate – do not change!)
•
Parameter 103 Motor voltage - (See motor type plate – do not change!)
•
Parameter 104 Motor frequency - (See motor type plate – do not change!)
•
Parameter 105 Motor current - (See motor type plate – do not change!)
•
Parameter 106 Rated motor speed - (See motor type plate – do not change!)
•
Parameter 202 Max motor frequency - (Factory set – do not change!)
•
Parameter 204 Min reference Pa - (Min pressure transducer setting see 4.3.3)
•
Parameter 205 Max reference Pa - (Max pressure transducer setting see 4.3.3)
•
Parameter 414 Min feedback Pa - (Min pressure transducer setting see 4.3.3)
•
Parameter 415 Max feedback Pa - (Max pressure transducer setting see 4.3.3)
•

4.3.2 Air volume measurement and setting

If you want to check the air volume of the unit the two measuring probes (+/-), which are
located beneath the pressure transducer, can be used. The differential pressure, measured
at these two points, compares the static pressure in front of the inlet ring with the static
pressure in the inlet ring of the narrowest point. The differential pressure between the static
pressures is related to the air volume via the energy conservation rate as follows:
Where k takes into account the specific ring characteristics.
Model
DanX 2/4
DanX 3/6
DanX 5/10
DanX 7/14
EXAMPLE: If you have measured a static pressure difference of 700 Pa for a DanX 5/10
then the air volume will be:
V = * k Pw
D
K nozzle coefficient
121
154
197
308
V 197 * 700
= =
23
Model
DanX 9/18
DanX 12/24
DanX16/32
3
5212 m /h
K nozzle coefficient
381
490
620