WEG MVW3000 Series, Руководство по программированию

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DETAILED PARAMETER DESCRIPTION
P0140 - Redundant ventilation selection
Adjustable range: 0 to 4 Factory setting: 0
Acesso: Menu
→
Configurations
→
Control
Description:
It selects the active ventilation set and the redundant ventilation operation mode.
With P0140 = Inactive, the redundant ventilation function is deactivated and all the software internal records
and timers are reset.
With P0140 programmed for Set A or Set B, the redundant ventilation function operates with just one set
of fans. The periodical set alternation must be done manually by changing P0140 between 1 and 2. In this
operating mode, an automatic test of the second set is carried out after the time set in P0141 has elapsed.
With P0140 programmed for Alternating A or Alternating B, the redundant ventilation function starts the op-
eration of the selected set and begins alternating automatically between the two sets, according to the time
programmed in P0141.
The current status of the redundant ventilation function can be viewed in P0041.
For redundant ventilation function operates properly, it is necessary to program a digital output (DO1 to DO2, or
RL1 to RL5) for the selection of the active set, and two digital inputs (DI1 to DI10) for set A and set B operation
failure.
A ventilation failure alarm is activated when one of the sets fails (alarm A0094 or A0114 for set A or set B,
respectively).
The Redundant Ventilation function is only possible with the proper hardware installed (refer to the supplier
specific project).
Table 5.13: Redundant ventilation selection
P0140 Function
0 Inactive
1
Set A
2 Set B
3
Alternating A
4
Alternating B
P0141 - Number of hours for alternating ventilation set
Adjustable range: 1 to 9999 h Factory setting: 720 h
Acesso: Menu
→
Configurations
→
Control
Description:
It defines the number of hours between the change of the ventilation set.
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NOTE!
This parameter is only visible on the HMI when the redundant ventilation function is actived,
P0140 > 0.
MVW3000 | 5-21