Danfoss FCM305 56, Instruction Manual

Page: 77 / 132

FCM 300 Series
MG.03.B6.2G - VLT is a registered Danfoss trademark
✭
= General factory setting - also applying to spare part unit, H H H H H = HVAC setting, IIIII = Industrial setting, ( ) = parameter
window text. [ ] = value for use in communication via serial communication port
413 Overmodulation function
(OVERMODULATION)
Settings:
Off (OFF) [0]
★
On (ON) [1]
Function:
This parameter allows activation of the
overmodulation function for the output voltage.
Description of choice:
Off means that there is no overmodulation of the
output voltage, which means that torque ripple on
the motor shaft is avoided. This can be a good
feature, e.g. on grinding machines.
On means that an output voltage can be obtained
which is greater than the mains voltage (up to 5%).
414 Minimum feedback
(MIN. FEEDBACK)
Settings:
-100,000,000 - FB
HIGH
(par. 415) [-100000000 - ]
★
0.000 [0]
Function:
Parameters 414 and 415 are used to scale the
feedback range to physical values used by the user.
The setting will also be the bounds of the reference
(parameters 204 and 205).
Parameter Group 4: Special functions
416 Reference/feedback unit
(REF/FEEDB. UNIT)
Settings:
NO UNIT [0] t/min [21]
★
% [1] t/h [22]
PPM [2] m [23]
RPM [3] Nm [24]
bar [4] m/s [25]
CYCLE/min [5] m/min [26]
PULSE/s [6] °F [27]
UNITS/s [7] in wg [28]
UNITS/min [8] gal/s [29]
UNITS/h [9] ft 3 /s [30]
°C [10] gal/min [31]
Pa [11] ft
3
/min [32]
l/s [12] gal/h [33]
m 3 /s [13] ft 3 /h [34]
l/min [14] lb/s [35]
m 3 /min [15] lb/min [36]
l/h [16] lb/h [37]
m 3 /h [17] lb ft [38]
kg/s [18] ft/s [39]
kg/min [19] ft/min [40]
kg/h [20] Hz [41]
Function:
Choose among different units to be shown on the
display.
This unit is also used directly in Process regulation,
closed loop as a unit for Minimum/Maximum
reference (parameters 204/205) and Minimum/
Maximum feedback (parameters 414/415).
Description of choice:
Is only active when parameter 203 has been set to
Min-Max [0].
415 Maximum feedback
(MAX. FEEDBACK)
Settings:
(par. 414) FB
LOW
- 100,000,000 [ - 100000000]
H,I
100.000 [100000]
✭
1.500.000 [1500000]
Function:
See description of parameter 414.
If Temperature dependent switching frequency [2] is
selected, the switching frequency will decline at an
increasing inverter temperature, see the drawing
below.
12-3
Used together with Process, closed loop mode
(parameter 100).