20-81 PID Normal/Inverse Control
Value:
Normal [0]
Inverse [1]
Function:
Normal
[0] causes the frequency converter’s
output frequency to decrease when the feed-
back is greater than the setpoint reference.
This is common for pressure-controlled supply
fan and pump applications.
Inverse
[1] causes the frequency converter’s
output frequency to increase when the feed-
back is greater than the setpoint reference.
This is common for temperature-controlled
cooling applications, such as cooling towers.
6.1.11. Initialisation to Default Settings
Initialise the frequency converter to default settings in two ways:
Recommended initialisation (via par. 14-22)
1. Select par. 14-22
2. Press [OK]
3. Select “Initialisation”
4. Press [OK]
5. Cut off the mains supply and wait
until the display turns off.
6. Reconnect the mains supply - the
frequency converter is now reset.
7. Change par. 14-22 back to
Normal
Operation
.
NB!
Keeps parameters selected in
Personal Menu
with default factory setting.
Par. 14-22 initialises all except:
14-50
RFI 1
8-30
Protocol
8-31
Address
8-32
Baud Rate
8-35
Minimum Response Delay
8-36
Max Response Delay
8-37
Max Inter-char Delay
15-00 to 15-05 Operating data
15-20 to 15-22 Historic log
15-30 to 15-32 Fault log
Manual initialisation
1. Disconnect from mains and wait until
the display turns off.
2a. Press [Status] - [Main Menu] - [OK]
at the same time while power up for
LCP 102, Graphical Display
2b. Press [Menu] while power up for LCP
101, Numerical Display
3. Release the keys after 5 s.
4. The frequency converter is now pro-
grammed according to default set-
tings.
This procedure initialises all except:
15-00
Operating Hours
15-03
Power-up's
15-04
Over temp's
15-05
Over volt's
6. How to programme the frequency converter VLT
®
HVAC Drive Operating Instructions
86
MG.11.A4.02 - 09.10.06. VLT
®
is a registered Danfoss trademark
6
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