Danfoss VLT AutomationDrive FC 302 Programming Manual page 121

Parameter Descriptions
NOTICE
[96] Reverse After
Ramp
This option is available only with
software version 48.XX.
Indicates if the direction of rotation should
be reversed. Depends on whether the speed
reference is positive or negative after the
ramp specified in parameter 16-48 Speed Ref.
After Ramp [RPM]
NOTICE
[98] Virtual Master
Dir.
This option is available only with
software version 48.XX.
A virtual master signal that controls the
rotation direction of followers.
[120] Local ref active Output is high when parameter 3-13
Reference Site = [2] Local.
Reference site set
in parameter 3-13
Reference Site
Reference site:
Local parameter
3-13 Reference Site
[2] Local
Reference site:
Remote parameter
3-13 Reference Site
[1] Remote
Reference site:
Linked to Hand/
Auto
Hand
Hand⇒off
Auto⇒off
Auto
Table 3.20 Local Reference Active
[121] Remote ref Output is high when
active parameter 3-13 Reference Site = [1] Remote or
[0] Linked to hand/auto while the LCP is in
auto-on mode. See Table 3.20
[122] No alarm Output is high when no alarm is present.
[123] Start command Output is high when there is an active start
activ command (that is via digital input bus
connection, hand-on, or auto-on), and no
stop or start command is active.
[124] Running reverse Output is high when the frequency
converter runs counterclockwise (the logical
product of the status bits running AND
reverse).
[125] Drive in hand Output is high when the frequency
mode converter is in hand-on mode (as indicated
by the LED light above [Hand On]).
MG33MP02
Programming Guide
[126] Drive in auto
[151] ATEX ETR cur.
[152] ATEX ETR freq.
[153] ATEX ETR cur.
[154] ATEX ETR freq.
Local Remote
[180] Clock Fault
reference reference
[181] Prev.
active active
[120] [121]
[188] AHF Capacitor
1 0
0 1
[189] External Fan
1 0
[190] Safe Function
1 0
[191] Safe Opt. Reset
0 0
[192] RS Flipflop 0
0 1
[193] RS Flipflop 1
[194] RS Flipflop 2
[195] RS Flipflop 3
[196] RS Flipflop 4
[197] RS Flipflop 5
[198] RS Flipflop 6
[199] RS Flipflop 7
[221] IGBT-cooling
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Output is high when the frequency
mode converter is in auto-on mode (as indicated
by the LED light above [Auto On]).
Selectable if parameter 1-90 Motor Thermal
alarm Protection is set to [20] ATEX ETR or [21]
Advanced ETR. If Alarm 164 ATEX ETR
cur.lim.alarm is active, the output is 1.
Selectable ifparameter 1-90 Motor Thermal
alarm Protection is set to [20] ATEX ETR or [21]
Advanced ETR. If Alarm 166 ATEX ETR
freq.lim.alarm is active, the output is 1.
warning
Selectable if parameter 1-90 Motor Thermal
warning Protection is set to [20] ATEX ETR or [21]
Advanced ETR. If Warning 165, ATEX ETR
freq.lim.warning is active, the output is 1.
Maintenance
The capacitors are turned on at 20%
Connect (hysteresis of 50% gives an interval of 10–
30%). The capacitors are disconnected below
10%. The off delay is 10 s and restarts if the
nominal power goes above 10% during the
delay. parameter 5-80 AHF Cap Reconnect
Delayis used to guarantee a minimum off-
time for the capacitors.
The internal logics for the internal fan
Control control is transferred to this output to make
it possible to control an external fan
(relevant for hp duct cooling).
active
req.
See parameter group 13-1* Comparators.
See parameter group 13-1* Comparators.
See parameter group 13-1* Comparators.
See parameter group 13-1* Comparators.
See parameter group 13-1* Comparators.
See parameter group 13-1* Comparators.
See parameter group 13-1* Comparators.
See parameter group 13-1* Comparators.
Use this option for handling the overcurrent
trips. When the frequency converter detects
an overcurrent condition, it shows alarm 13,
Overcurrent and triggers a reset. If the
overcurrent condition occurs the third time
in a row, the frequency converter shows
alarm 13, Overcurrent and initiates a 3-
minute delay before the next reset.
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