Danfoss VLT HVAC Drive FC 102 Instruction Manual page 108

How to Program
22-41 Minimum Sleep Time
Range:
10 s [0 - 600 s] Set the desired minimum time for staying in
*
22-42 Wake-up Speed [RPM]
Range:
Size
related 4-11 -
*
par. 4-13
RPM]
6 6
22-60 Broken Belt Function
Selects the action to be performed if the broken belt condition is
detected
Option:
[0] OFF
*
[1] Warning The adjustable frequency drive continues to run
[2] Trip
NOTICE!
Do not set parameter 14-20 Reset Mode, to [13] Infinite
auto reset, when parameter 22-60 Broken Belt Function is
set to [2] Trip. Doing so causes the adjustable frequency
drive to continuously cycle between running and
stopping when a broken belt condition is detected.
NOTICE!
For adjustable frequency drives with constant-
speed bypass
If an automatic bypass function starts the bypass at
persistent alarm conditions, disable the bypass's
automatic bypass function if [2] Alarm or [3] Man. Reset
Alarm is selected as the dry-pump function.
106
Function:
sleep mode. This setting overrides any wake-
up conditions.
Function:
[ par. To be used if parameter 0-02 Motor Speed
Unit has been set for RPM (parameter not
visible if Hz is selected). Only to be used if
parameter 1-00 Configuration Mode is set for
open-loop and an external controller
applies speed reference.
Set the reference speed at which the sleep
mode should be cancelled.
Function:
but activates a broken belt warning [W95]. An
adjustable frequency drive digital output or a
serial communication bus can communicate a
warning to other equipment.
The adjustable frequency drive stops running and
activates a broken belt alarm [A 95]. An
adjustable frequency drive digital output or a
serial communication bus can communicate an
alarm to other equipment.
Danfoss A/S © 08/2014 All rights reserved.
®
VLT HVAC Drive FC 102
22-61 Broken Belt Torque
Range:
10 %
*
22-62 Broken Belt Delay
Range:
10 s [0 - 600
s]
22-75 Short Cycle Protection
Option:
[0] Disabled Timer set in parameter 22-76 Interval between
*
[1] Enabled Timer set in parameter 22-76 Interval between
22-76 Interval between Starts
Range:
Size
related
*
22-77 Minimum Run Time
Range:
0 s [ 0 - par.
*
22-76 s]
Function:
[0 - 100 %]
Function:
Sets the time for which the broken-belt
conditions must be active before carrying out
the action selected in parameter 22-60 Broken
Belt Function.
Function:
Starts is disabled.
Starts is enabled.
Function:
[ par. 22-77 Sets the time desired as minimum
- 3600 s] time between two starts. Any
normal start command (start/jog/
freeze) is disregarded until the timer
has expired.
Function:
NOTICE!
Does not work in cascade mode.
Sets the time desired as minimum run time
after a normal start command (start/jog/freeze).
Any normal stop command is disregarded until
the set time has expired. The timer starts
counting following a normal start command
(start/jog/freeze).
A coast (inverse) or an external interlock
command overrides the timer.
MG11F522