300-30 Compensation Points
Range: Function:
defines the permitted residual level into the
supply of the following harmonics.
300-35 Cosphi Reference
Range: Function:
0.500* [0.500 - 1.000 ] Enter the reference for cosphi.
300-40 Master Follower Selection
Option: Function:
[0] Master If operating active filters in parallel, select
whether this filter is a master or a follower
active filter.
[1] Follower
[2] * Not Paralleled
NOTICE
Ensure that only 1 master is set in each group of parallel
connected filters. Verify that no other unit is set to
master.
After changing this parameter, additional parameters are
accessible. For the master units, 300-42 Number of Follower
AFs has to be programmed for the number of followers
connected.
300-41 Follower ID
Range: Function:
1* [1 - 3 ] Enter the unique ID of this follower. Verify that no
other follower uses the same ID.
NOTICE
Parameter 300-41 Follower ID is not accessible unless
parameter 300-40 Master Follower Selection is set to
follower.
NOTICE
Each follower should have its own follower ID. Verify
that no 2 followers have the same follower ID.
300-42 Num. of Follower AFs
Range: Function:
1* [1 - 3 ] Enter the total number of follower active filters.
The master active filter only controls this number
of followers.
NOTICE
Parameter 300-42 Num. of Follower AFs is not accessible
unless parameter 300-40 Master Follower Selection is set
to master.
Program each follower unit at parameter 300-41 Follower ID
with a unique ID.
300-50 Enable Sleep Mode
Option: Function:
This parameter saves energy at light system load
where harmonic distortion is insignificant and
mitigation not needed. The filter automatically
deactivates when not needed and reactivates when
mitigation is called for. The filter still measures
harmonics during sleep, but is not injecting
currents. The filter is hard coded to have a
minimum sleep time of 5 s to avoid contact
bounce.
[0] Disabled Default filter does not use the sleep mode
function.
[1] Enabled The filter enters sleep mode at light loads or if
triggered from external.
300-51 Sleep Mode Trig Source
Option: Function:
[0] * Mains
current
The filter is active/inactive according to line
current. Trigger values are set in
parameter 300-52 Sleep Mode Wake Up Trigger
and parameter 300-53 Sleep Mode Sleep Trigger
[1] Digital
Input
Filter sleep is triggered via an external signal
provided to filter terminal 18.
300-52 Sleep Mode Wake Up Trigger
Range: Function:
Application
dependent*
[Application
dependant]
Only available when [0] Mains
Current is selected in
parameter 300-51 Sleep Mode Trig
Source. The parameter sets the %
current value of
parameter 300-20 CT Primary Rating
at which the filter awakes. 5 equals
5% of parameter 300-20 CT Primary
Rating. If CTs are 1500 and this
parameter is 5, this equals 5% of
1500 A=75 A wake-up current.
300-53 Sleep Mode Sleep Trigger
Range: Function:
80
%*
[0 -
90 %]
This value enters the % sleep-mode trigger value
of parameter 300-52 Sleep Mode Wake Up Trigger.
If the filter leaves sleep mode at 75 A and this
parameter is set to 80, it enters sleep mode at
8% of 75 A=60 A. The filter is programmed to
have minimum 5 s sleep time
Applications and Basic Prog... Operating Instructions
MG90V302 Danfoss A/S © 09/2014 All rights reserved. 59
6 6
To Next Page
Loading...
Need help?
General