Danfoss VLT HVAC Drive FC 102 Installationsanleitung Handbuch - Seite 8

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Danfoss VLT HVAC Drive FC 102 Installationsanleitung Handbuch

1. Installation Instructions

Installation Instructions

31-22 Above level threshold

Range:

Function:

[ -2500 - 2500 Pa]

Enter the above-level threshold.

31-23 On Delay Time

Range:

60 s

[0 - 3600 s]

Enter the on delay time.

31-24 Reset Delay Time

Range:

9999 s

[0 - 9999 s]

31-25 Pressure filter time constant

Range:

Function:

1 s

[0.01 - 60 s] Enter the pressure filter time constant. A

longer value make the pressure signal more

stable but less dynamic. A shorter value

allows to eliminate signal spikes and keep

control more dynamic.

31-2* Readouts

Parameters in this group contain the actual pressure levels and

the status information. The LCP can be configured to show the

values of these parameters in different display lines. The

toggle function allows to show multiple pressure signals in the

same LCP line. The number is followed by the hash sign (#).

See Illustration 1.9.

Use parameter 0-20 Display Line 1.1 Small to

parameter 0-24 Display Line 3 Large to configure the LCP to

show different pressure values.

Illustration 1.9 Pressure Sensor Data on the LCP

31-26 Pressure Sensor 1

Range:

Function:

0 Pa

[-500 - 500 Pa] Shows the readout of pressure sensor 1.

Pressure Transmitter Unit PTU 025

VLT

HVAC Drive FC 102

Function:

Enter the reset delay time.

31-27 Pressure Sensor 2

Range:

Function:

0 Pa

[-500 - 500 Pa] Shows the readout of pressure sensor 2.

31-28 Pressure Sensor 3

Range:

Function:

0 Pa

[-1000 - 1000 Pa] Shows the readout of pressure sensor

31-29 Pressure Sensor 4

Range:

Function:

0 Pa

[-2500 - 2500 Pa] Shows the readout of pressure sensor

31-30 Press Sens Cmp State

Range:

Function:

[0 -

Shows the pressure sensor state. The state is an 8-

255]

digit binary value, where 1 indicates an active status

and 0 indicates an inactive status. Reading from

right to left, the first 4 digits indicate the alarms for

the below-level threshold, and the last 4 digits the

alarms for the above-level threshold. For instance,

counting from right to left, sensor 1 for the below-

level threshold is at position 1, and sensor 1 for the

above-level threshold is at position 5. See

Illustration 1.9.

NOTICE

When using this parameter in the smart logic

controller, the output status signal for the

below-level threshold and for the above-level

threshold is the same for a specific sensor.

For example, in the following cases the

output status signal is the same:

•

The below-level threshold for sensor

1 is active.

•

The above-level threshold for sensor

1 is active.

31-31 Press Sens toggle

Range:

Function:

[0 - 4] Shows the pressure values on all sensors. The

readout switches between sensors in a loop, going

from sensor 1 to sensor 4. The sensor number is

followed by a hash sign, see Illustration 1.9.

MI08A102