Danfoss VLT HVAC Drive Instruction Manual page 54

5. How to operate the adjustable frequency
drive
Operation Keys
the bottom of the control panel.
[Hand On]
enables control of the adjustable frequency drive via the GLCP. [Hand on] also starts the motor
and makes it possible to enter the motor speed data by using the arrow keys. The key can be
selected as
5
The following control signals will still be active when [Hand on] is activated:
•
•
•
•
•
•
•
•
[Off]
stops the connected motor. The key can be selected as
[Off] key on LCP.
can only be stopped by disconnecting the line power supply.
[Auto On]
enables the adjustable frequency drive to be controlled via the control terminals and/or serial
communication. When a start signal is applied to the control terminals and/or the bus, the ad-
justable frequency drive will start. The key can be selected as
0-42 [Auto on] key on LCP.
[Reset]
is used for resetting the adjustable frequency drive after an alarm (trip). It can be selected as
Enable
54
for local control are found at
Enable Disable
[1] or [0] via par.
[Hand on] - [Off] - [Auto on]
Reset
Coasting stop inverse
Reversing
Set-up select lsb - Set-up select msb
Stop command from serial communication
Quick stop
DC brake
NOTE
External stop signals activated by using control signals or serial bus will override a
"start" command via the LCP.
If no external stop function is selected, and the [Off] key is inactive, the motor
NOTE
An active HAND-OFF-AUTO signal via the digital inputs has higher priority than the
control keys [Hand on] – [Auto on].
Disable
[1] or [0] via par. 0-43
MG.11.A4.22 - VLT
0-40 [Hand on] key on LCP.
Enable
[1] or
Enable
Reset Keys on LCP
.
® is a registered Danfoss trademark
VLT ® HVAC Drive Instruction Manual
130BP046.10
Disable 0-41
[0] via par.
Disable
[1] or [0] via par.