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Building Technologies Basic Documentation LMV5... CC1P7550en
18 VSD module 22.05.2018
18.1.5 Configuring the current interface
The VSD is controlled via a current interface which can be switched from 0...20 mA to
4...20 mA, or vice versa.
Β
Note!
If the VSD requires an input signal of DC 0...10 V, a resistor of 500 ς °1% must be
connected parallel to its input.
18.1.6 Configuring the fuel meter
The module can be used with fuel meters having a Namur or Reed output or open
collector (pnp).
To be able to adapt the module to different types of meters, the number of pulses
corresponding to a volume unit must be parameterized in the system.
The setting requires 4 or 5 decimal points. If one of these values shall be changed, the
following setting procedure is required on the following menu:
Params & Display ↑ VSD Module ↑ Configuration ↑ Fuel Meter
↑ Pulse Value Gas or
Params & Display ↑ VSD Module ↑ Configuration ↑ Fuel Meter
↑ Pulse Value Oil
The pointer indicates the unit to be selected (1 m
3
/1 ft
3
).
Parameter Analog Output
P u l s e V a l u e G a s
C u r r : 3 . 0 0 0 0
1 m
= 3 . 0 0 0 0
The proposed unit can be changed by pressing Select.
When pressing Enter, the pointer jumps to the first position of the display section with
the numbers.
P u l s e V a l u e G a s
C u r r : 3 . 0 0 0 0
1 m
= 3 . 0 0 0 0
Select can be used to change the digit with the highest value of the numerical number,
or Enter can be pressed to switch to the next digit.
After selecting the last decimal place and pressing Enter, the value is adopted.
Press Esc to exit the menu.
The setting procedure for Pulse Value Oil is the same as that for Pulse Value Gas, the
selectable units being 1 l or 1 gal.
Pulse value gas
Pulse value oil