Danfoss vacon nx liquid-cooled drives Application guide
vacon® nx
ac drives
liquid-cooled drives
heat exchanger
application manual
vacon • 1
INDEX
Document code: DPD01890A
Date edited: 5.8.2016
1. General .............................................................................................................................. 2
2. Control I/O ......................................................................................................................... 3
3. Parameter lists .................................................................................................................. 4
3.1 Monitoring values (Control keypad: menu M1) .......................................................................... 4
3.2 Basic parameters (Control keypad: Menu M2 G2.1) ............................................................. 8
3.3 Input signals (Control keypad: Menu M2 G2.2) ..................................................................... 9
3.4 Output signals (Control keypad: Menu M2 G2.3) ................................................................. 10
3.5 Drive control parameters (Control keypad: Menu M2 G2.4) ............................................... 14
3.6 Prohibit frequency parameters (Control keypad: Menu M2 G2.5) ...................................... 14
3.7 Motor control parameters (Control keypad: Menu M2 G2.6) .............................................. 15
3.8 Protections (Control keypad: Menu M2 G2.7)...................................................................... 16
3.9 Autorestart parameters (Control keypad: Menu M2 G2.8) ................................................. 17
3.10 PID control parameters (Control keypad: Menu M2 G2.9).................................................. 17
3.11 Flow control parameters (Control keypad: Menu M2 G2.10).............................................. 18
3.12 Fieldbus parameters (Control Keypad: Menu M2 G2.11) ..................................................... 19
3.13
Keypad control (Control keypad: Menu M3) ............................................................................. 20
3.14 System menu (Control keypad: M6) ......................................................................................... 20
3.15 Expander boards (Control keypad: Menu M7) ......................................................................... 20
4. Description of parameters ............................................................................................... 21
4.1 Keypad control parameters ...................................................................................................... 52
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2 • vacon General
heat exchanger application
1. GENERAL
This application is aimed to be used in the Vacon liquid-cooled AC drive inside the Heat exchanger
unit.
The idea with the application is to maintain a constant flow of coolant through the heat exchanger
and through the Vacon liquid-cooled drive.
The user sets a certain speed for the pump of the heat exchanger unit that produces a sufficient flow
through the Vacon liquid-cooled drives to keep them cooled. This speed is NOT regulated but fixed
by a parameter set value.
The Vacon AC drive also handles the temperature of the water in the heat exchanger unit by
regulating the valve that handles the coolant intake to the heat exchanger element (from the
customer's system). This regulation is based on the temperature of the water in the pipes between
the outlet of the heat exchanger pump and the inlet of the cooling element of the Vacon liquid-cooled
drive.
The actual value of the temperature for the regulation comes from a sensor called FSA11. This is a
type of flow switch that measures both the temperature of the coolant and the flow in the pipes. If
there is not enough flow in the pipe the sensor gives a signal that tells the drive to stop due to
insufficient flow.
Vacon NX AC drives can be connected to the Profibus DP using a fieldbus board. The AC drive can
then be controlled, monitored and programmed from the Host system. Profibus fieldbus board
(OPT-C5) is normally included in the delivery of Vacon NX liquid-cooled drive Heat Exchanger
Solution. The Profibus fieldbus board must be installed in slot E on the control board of the AC drive.
For more information on the Profibus fieldbus board, see Vacon OPTC3/C5 Profibus Option Board
User Manual.
The standard delivery also includes I/O boards OPT-A1 (placed in slot A), OPT-A2 (placed in slot B)
and OPT-B5 (placed in slot C or D). The application, however, offers you more signals than the
standard set of I/O boards allows you to connect. If you wish to use one additional analogue input
signal and/or two additional analogue output signals, we recommend you to order Vacon I/O board
OPT-B4 and place it in the last free board slot (C or D).
1
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Control I/O vacon • 3
2. CONTROL I/O
Reference potentiometer,
1…10 kΩ
2-wire
transmitter
Actual
value I
(0)4…20 mA
READY
RUN
220
VAC
OPT-A1
Terminal Signal Description
1 +10V
2 AI1+ Analogue input, voltage range
3 AI1- I/O Ground Ground for reference and controls
–
4 AI2+ Analogue input, current range
5 AI2-
+
6 +24V Control voltage output Voltage for switches, etc. max 0.1 A
7 GND I/O ground Ground for reference and controls
8 DIN1 Start/Stop
9 DIN2 Flow fault NO/NC programmable
10 DIN3 External fault
11 CMA Common for DIN 1—DIN 3 Connect to GND or +24V
12 +24V Control voltage output Voltage for switches (see #6)
13 GND I/O ground Ground for reference and controls
14 DIN4 Pump 1
15 DIN5 Pump 2
16 DIN6 Sequence, 2-pump system Combined with DIN1
17 CMB Common for DIN4—DIN6 Connect to GND or +24V
mA
18 AO1+ Output frequency
19 AO120 DO1 Digital output
Reference output Voltage for potentiometer, etc.
ref
0—10V DC
0—20mA
Control place A (PID
controller)
(programmable)
Analogue output
READY
Pressure, outlet (pump)
Temperature
Contact closed = start
Contact open = External fault
Forced or single run
Combined with DIN1
Forced or single run
Combined with DIN1
Programmable
Range 0—20 mA/R
Programmable
Open collector, I≤50mA, U≤48 VDC
, max. 500Ω
L
OPT-A2
21 RO1 Relay output 1
22 RO1
23 RO1
24 RO2 Relay output 2
25 RO2
26 RO2
FAULT
Programmable
RUN
Programmable
OPT-B5
22 RO1 Relay output 1
23 RO1
25 RO2 Relay output 2
26 RO2
28 RO3 Relay output 3
29 RO3
COOLING OK
PUMP 1
PUMP 2
Table 1. Heat exchanger application I/O configuration example (with 2-wire
transmitter).
Ju m per block X 3:
CAN g rounding
Con nected to shiel d Not c o nnec ted to shi el d
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Factory d efault
=
Ju m per block X 4:
CA N t erm i na ti on
Terminated Not terminated
2
4 • vacon Parameter lists
3. PARAMETER LISTS
On the next pages you will find the lists of parameters within the respective parameter groups. The
parameter descriptions are given on pages 21 to 52.
Column explanations:
Code = Location indication on the keypad; Shows the operator the present param. number
Parameter = Name of parameter
Min = Minimum value of parameter
Max = Maximum value of parameter
Unit = Unit of parameter value; Given if available
Default = Value preset by factory
Cust = Customer’s own setting
ID = ID number of the parameter
= In parameter row: Use TTF method to program these parameters.
= On parameter code: Parameter value can only be changed after the FC has been
stopped.
3.1 Monitoring values (Control keypad: menu M1)
The monitoring values are the actual values of parameters and signals as well as statuses and
measurements. Monitoring values cannot be edited.
See the product’s user manual for more information.
Code Parameter Unit ID Description
V1.1 Output frequency Hz 1 Output frequency to motor
V1.2 Frequency reference Hz 25 Frequency reference to motor control
V1.3 Motor speed rpm 2 Motor speed in rpm
V1.4 Motor current A 3
V1.5 Motor torque % 4 Calculated shaft torque
V1.6 Motor power % 5 Motor shaft power
V1.7 Motor voltage V 6
V1.8 DC link voltage V 7
V1.9
V1.10 Analogue input 1 V 13 AI1
V1.11 Analogue input 2 mA 14 AI2
V1.12 Analogue input 3 1543 AI3
V1.13 Analog Output1 26
V1.14 DIN1, DIN2, DIN3 15 Digital input statuses
V1.15 DIN4, DIN5, DIN6 16 Digital input statuses
V1.16 RO1, RO2, RO3 1516 Relay output statuses
V1.17 RO4, RO5, RO6 1574 Relay output statuses
V1.18 Temp reference °C 1500
V1.19 Actual temperature °C 1501
V1.20 Temp error value °C 1502
V1.21 PID output % 23 In % of the max. output value
V1.22 Inlet pressure bar 1511 PT11
Unit temperature
Table 2. Monitoring values
8 Heatsink temperature
°C
3
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Parameter lists vacon • 5
3.1.1
FB Monitor
Code Parameter Unit ID Description
V1.23.1 Motor Current A 45 Motor current with one decimal
V1.23.2 Fault History 37 Last active fault code
V1.23.3 Status Word 43 Application status word
V1.23.4 Status Word 2 1800 Application status word 2
V1.23.5 Fault Word 1 1172 General fault word 1
V1.23.6 Fault Word 2 1173 General fault word
V1.23.7 Warning Word 1 1174 General warning word
V1.23.8 Fault Word 10 1202 Heat exchanger specific faults
V1.23.9 Warning Word 10 1269 Heat exchanger specific warnings
Table 3. Monitoring values (G1.24 FB Monitor)
3.1.1.1 Status Word, ID43
Description Comment
b0
b1 Ready
b2 Run
b3 Fault
b4
b5
b6 Run enable
b7 Warning
b8
b9
b10 RO4 status
b11 RO5 status
b12 Run request
b13
b14
b15 Cooling OK
Motor regulator
active
Table 4. Status Word
3.1.1.2 Status Word 2, ID1800
Give this status word to Vacon personnel in case of problems with running the application.
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3
6 • vacon Parameter lists
3.1.1.3 Fault Word 1, ID1172
Description Comment
b0 Over current F1
b1 Over voltage F2
b2 Under voltage F9
b3 Motor stalled F15
b4
b5 Motor underload F17
b6
b7
b8 Input phase F10
b9
b10
b11
b12
b13
b14 Slot communication F54
b15 4 mA F50
Unit over
temperature
Motor over
temperature
Keypad or PC
communication
Fieldbus
communication
F16
F52
F53
Table 5. Fault Word 1
3.1.1.4 Fault Word 2, ID1173
Description Comment
b0 Output phase F11
b6 External fault
b9 IGBT F41
Table 6. Fault Word 2
3.1.1.5 Warning Word 1, ID1174
Description Comment
b0 Motor stalled F15
b1
b2 Motor underload F17
b3 Input phase F10
b4 Output phase F11
b8 Unit temperature
b9 4 mA F50
b15
Motor over
temperature
Keypad
communication
Table 7. Warning Word 1
F51
(fault or warning)
F16,
F29 (fault or warn)
F52
3
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Parameter lists vacon • 7
3.1.1.6 Fault Word 10, ID1202
Description Comment
b0
b1
b2
b3
b4
b5 Over temperature F85 (warning)
b6
b7 Inlet pressure low F88
b8 Flow F87
Table 8. Fault Word 10
3.1.1.7 Warning Word 10, ID1269
Description Comment
b0
b1
b2
b3 Inlet pressure low F82
b4 Over temperature F83
b5 Low temperature F86
b6
Table 9. Warning Word 10
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3
8 • vacon Parameter lists
3.2 Basic parameters (Control keypad: Menu M2 G2.1)
Code Parameter Min Max Unit Default Cust ID Note
P2.1.1 Min Frequency 0.00 Par. 2.1.2 Hz 25.00 101
NOTE: If f
P2.1.2 Max Frequency Par. 2.1.1 320.00 Hz 50.00 102
P2.1.3 Acceleration time 1 0.1 3000.0 s 1.0 103
P2.1.4 Deceleration time 1 0.1 3000.0 s 1.0 104
P2.1.5 Current limit 0 2 x I
P2.1.6
P2.1.7
P2.1.8
P2.1.9
P2.1.10
P2.1.11 Start function 0 1 0 505
P2.1.12 Stop function 0 3 0 506
P2.1.13 U/f optimization 0 1 0 109
P2.1.14 I/O reference 0 1 0 117
P2.1.15 Preset speed1 0.00 Par. 2.1.2 Hz 10.00
P2.1.16 Automatic restart 0 1 0
P2.1.17 Parameter conceal 0 1 1
Nominal voltage of
the motor
Nominal frequency
of the motor
Nominal speed of
the motor
Nominal current of
the motor
Motor cosϕ
180 690 V 400V 110
30.00 320.00 Hz 50.00 111
300 20 000 rpm 1440 112
0.4 x I
2 x IH A IH 113
H
0.30 1.00 0.85 120
H
AI
L
motor synchronous speed,
check suitability for motor
and drive system
NOTE: If PID-controller is
used, Acceleration time 2
(par. 2.4.3) is automatically
applied
NOTE: If PID-controller is
used, Deceleration time 2
(par. 2.4.4) is automatically
applied
107
Check the rating plate of the
motor
The default applies for a 4pole motor and a nominal
size AC drive.
Check the rating plate of the
motor.
Check the rating plate of the
motor
0=Ramp
1=Flying start
0=Coasting
1=Ramp
2=Ramp+Run enable coast
3=Coast+Run enable ramp
0=Not used
1=Automatic torque boost
0=Keypad reference
1=Fieldbus reference
105
0=Not used
731
1=Automatic restart
0=All parameters visible
115
1=Basic group (G2.1) visible
> than the
max
Table 10. Basic parameters G2.1
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Parameter lists vacon • 9
3.3 Input signals (Control keypad: Menu M2 G2.2)
Code Parameter Min Max Unit Default Cust ID Note
P2.2.1 DIN2 input 0 1 1 1590
P2.2.2 DIN3 function 0 10 3 301
P2.2.3 DIN6 Function 0 1 0 1572
P2.2.4 AI1 signal range 0 3 1 379
P2.2.5 AI1 supervision 0 1 0 1544
P2.2.6
P2.2.7
P2.2.8 AI1 inversion 0 1 0 387
P2.2.9 AI1 filter time 0.00 10.00 s 1.00 378 0=No filtering
P2.2.10 AI2 signal range 0 1 1 390
P2.2.11 AI2 supervision 0 1 1 1545
P2.2.12
P2.2.13
P2.2.14 AI2 inversion 0 1 0 398
P2.2.15 AI2 filter time 0.00 10.00 s 1.00 389 0=No filtering
P2.2.16 AI3 signal selection 0 59 1558 TTF programming method
P2.2.17 AI3 signal range 0 1 1 1520
P2.2.18 AI3 supervision 0 1 0 1546
P2.2.19
P2.2.20
P2.2.21 AI3 inversion 0 1 0 1529
P2.2.22 AI3 filter time 0.00 10.00 s 1.00 1526 0=No filtering
P2.2.23
P2.2.24
AI1 custom
minimum setting
AI1 custom
maximum setting
AI2 custom
minimum setting
AI2 custom
maximum setting
AI3 custom
minimum setting
AI3 custom
maximum setting
Keypad control
reference
Fieldbus control
reference
0.00 P2.2.6 % 0.00 380
0.00 100.00 % 100.00 381
0.00 P2.2.6 % 0.00 391
0.00 100.00 % 100.00 392
0.00 P2.2.18 % 0.00 1517
P2.2.17 100.00 % 100.00 1518
0 1 0 121
0 1 1 122
0=Normally open
1=Normally closed
0=Motor pot. UP(cc)
1=Reverse
2=External fault CC
3=External fault OC
4=Fault reset
5=Run enable
6=Preset speed 1
7=DC brake cmnd
8=PID disable
9=PID disable, go to preset
speed
10=PID keypad ref 2
0=Preset Speed 1
1=Fault Reset
0=Signal range 0-20mA
1=Signal range 4-20mA
2=0-10V
3=2-10V
0=Not inverted
1=Inverted
0=Signal range 0-20mA
1=Signal range 4-20mA
0=Not inverted
1=Inverted
0=Signal range 0-20mA
1=Signal range 4-20mA
0=Not inverted
1=Inverted
Keypad freq ref selection:
0=Reference from Keypad
1=FB reference
Fieldbus frequency
reference selection:
0=Reference from Keypad
1=FB reference
Table 11. Input signals, G2.2
*Remember to place jumpers of block X2 accordingly.
See the product's user manual.
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3
10 • vacon Parameter lists
3.4 Output signals (Control keypad: Menu M2 G2.3)
3.4.1
Analogue output 1
Code Parameter Min Max Unit Default Cust ID Note
0=Not used
1=Output freq. (0—f
2=Freq. reference (0—f
max
)
)
max
3=Motor speed (0—Motor
nominal speed)
P2.3.1.1
Analogue output 1
function
4=Motor current (0—I
5=Motor torque (0—T
6=Motor power (0—P
0 13 13 307
7=Motor voltage (0-U
8=DC-link volt (0—1000V)
nMotor
nMotor
nMotor
nMotor
)
)
)
)
9=PI controller temp ref
10=PI contr. act. temp.
11=PI contr. temperature
error value
12=PI controller output
13=Pressure from PT11,
pump inlet
P2.3.1.2
P2.3.1.3
P2.3.1.4
P2.3.1.5
Analogue output 1
filter time
Analogue output 1
inversion
Analogue output 1
minimum
Analogue output 1
scale
0.00 10.00 s 1.00 308 0=No filtering
0 1 0 309
0 1 1 310
0=Not inverted
1=Inverted
0=0 mA
1=4 mA
10 1000 % 100 311
Table 12. Analogue output 1 signals
3.4.2
Analogue output 2
Code Parameter Min Max Unit Default Cust ID Note
0=Not used
1=Output freq. (0—f
2=Freq. reference (0—f
3=Motor speed (0—Motor
nominal speed)
4=Motor current (0—I
5=Motor torque (0—T
6=Motor power (0—P
7=Motor voltage (0-U
8=DC-link volt (0—1000V)
P2.3.2.1
Analogue output 2
function
0 13 10 1530
9=PID controller ref. value
10=PI contr. act. temp
11=PI contr. temperature
error value
12=PI controller output
13=Pressure from PT11,
pump inlet
P2.3.2.2
P2.3.2.3
P2.3.2.4
P2.3.2.5
Analogue output 2
filter time
Analogue output 2
inversion
Analogue output 2
minimum
Analogue output 2
scale
0.00 10.00 s 1.00 1531 0=No filtering
0 1 0 1532
0 1 0 1533
0=Not inverted
1=Inverted
0=0 mA
1=4 mA
10 1000 % 100 1534
Table 13. Analogue output 2 signals
max
)
max
nMotor
nMotor
nMotor
nMotor
)
)
)
)
)
3
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Parameter lists vacon • 11
3.4.3
Analogue output 3
Code Parameter Min Max Unit Default Cust ID Note
0=Not used
P2.3.3.1
P2.3.3.2
P2.3.3.3
P2.3.3.4
P2.3.3.5
Analogue output 3
function
Analogue output 3
filter time
Analogue output 3
inversion
Analogue output 3
minimum
Analogue output 3
scale
1=Output freq. (0—f
2=Freq. reference (0—f
3=Motor speed (0—Motor
nominal speed)
4=Motor current (0—I
5=Motor torque (0—T
6=Motor power (0—P
0 13 4 1535
0.00 10.00 s 1.00 1536 0=No filtering
0 1 0 1537
0 1 0 1538
10 1000 % 100 1539
7=Motor voltage (0-U
8=DC-link volt (0—1000V)
9=PID controller ref. value
10=PI contr. act. temp
11=PI contr. temperature
error value
12=PID controller output
13=Pressure from PT11,
pump inlet
0=Not inverted
1=Inverted
0=0 mA
1=4 mA
max
)
max
nMotor
nMotor
nMotor
nMotor
)
)
)
)
)
Table 14. Analogue output 3 signals
3.4.4
Relay output 1
Code Parameter Min Max Unit Default Cust ID Note
P2.3.4.1
P2.3.4.2
P2.3.4.3
Relay output 1
signal selection
Relay output 1
function
Relay output 1
inversion
B.1 1549
0=Not used
1=Ready
2=Run
3=Fault
4=Fault inverted
5=FC overheat warning
6=Ext. fault or warning
7=Ref. fault or warning
8=Warning
0 18 2 313
0 1 0 1540
9=Reversed
10=Preset speed 1
11=At speed
12=Mot. regulator active
13=OP freq. limit superv.1
14=Control place: IO
15=Thermistor fault/warn.
16=Actual value supervision
17=Cooling OK
18=Alarm latched
0=Not inverted
1=Inverted
Table 15. Relay output 1 signals
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3
12 • vacon Parameter lists
3.4.5
Relay output 2
Code Parameter Min Max Unit Default Cust ID Note
P2.3.5.1
P2.3.5.2
P2.3.5.3
Relay output 2
signal selection
Relay output 2
function
Relay output 2
inversion
B.2 1550
0=Not used
1=Ready
2=Run
3=Fault
4=Fault inverted
5=FC overheat warning
6=Ext. fault or warning
7=Ref. fault or warning
8=Warning
0 18 3 1513
0 1 0 1541
9=Reversed
10=Preset speed 1
11=At speed
12=Mot. regulator active
13=OP freq. limit superv.1
14=Control place: IO
15=Thermistor fault/warn.
16=Actual value supervision
17=Cooling OK
18=Alarm latched
0=Not inverted
1=Inverted
Table 16. Relay output 2 signals
3.4.6
Relay output 3
Code Parameter Min Max Unit Default Cust ID Note
P2.3.6.1
P2.3.6.2
P2.3.6.3
Relay output 3
signal selection
Relay output 3
function
Relay output 3
inversion
D.1 1551
0=Not used
0 3 1 1515
0 1 0 1542
1=Cooling OK
2=Pump 1
3=Pump 2
0=Not inverted
1=Inverted
Table 17. Relay output 3 signals
3.4.7
Relay output 4
Code Parameter Min Max Unit Default Cust ID Note
P2.3.7.1
P2.3.7.2
P2.3.7.3
Relay output 4
signal selection
Relay output 4
function
Relay output 4
inversion
D.2 1552
0=Not used
0 3 2 1553
0 1 0 1554
1=Cooling OK
2=Pump 1
3=Pump 2
0=Not inverted
1=Inverted
Table 18. Relay output 4 signals
3
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Parameter lists vacon • 13
3.4.8
Relay output 5
Code Parameter Min Max Unit Default Cust ID Note
P2.3.8.1
P2.3.8.2
P2.3.8.3
Relay output 5
signal selection
Relay output 5
function
Relay output 5
inversion
D.3 1555
0=Not used
0 3 3 1556
0 1 0 1557
1=Cooling OK
2=Pump 1
3=Pump 2
0=Not inverted
1=Inverted
Table 19. Relay output 5 signals
3.4.9
Relay output 6
Code Parameter Min Max Unit Default Cust ID Note
P2.3.9.1
P2.3.9.2
P2.3.9.3
Relay output 6
signal selection
Relay output 6
function
Relay output 6
inversion
A.1 1573
0=Not used
1=Ready
2=Run
3=Fault
4=Fault inverted
5=FC overheat warning
6=Ext. fault or warning
7=Ref. fault or warning
8=Warning
0 18 3 1567
0 1 0 1568
9=Reversed
10=Preset speed 1
11=At speed
12=Mot. regulator active
13=OP freq. limit superv.1
14=Control place: IO
15=Thermistor fault/warn.
16=Actual value supervision
17=Cooling OK
18=Alarm latched
0=Not inverted
1=Inverted
Table 20. Relay output 6 signals
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3
14 • vacon Parameter lists
3.5 Drive control parameters (Control keypad: Menu M2 G2.4)
Code Parameter Min Max Unit Default Cust ID Note
P2.4.1 Ramp 1 shape 0.0 10.0 s 0.0 500
P2.4.2 Brake chopper 0 3 0 504
P2.4.3 DC braking current 0.4 x IH 2 x I
P2.4.4
P2.4.5
P2.4.6
P2.4.7 Flux brake 0 1 0 520
P2.4.8 Flux braking current 0.4 x IH 2 x I
DC braking time
at stop
Frequency to start
DC braking during
ramp stop
DC braking time
at start
0.00 600.00 s 0.00 508 0=DC brake is off at stop
0.10 10.00 Hz 1.50 515
0.00 600.00 s 0.00 516 0=DC brake is off at start
H
H
AI
AI
H
H
0=Linear
>0=S-curve ramp time
0=Disabled
1=Used when running
2=External brake chopper
3=Used when stopped/
running
507
0=Off
1=On
519
Table 21. Drive control parameters, G2.4
3.6 Prohibit frequency parameters (Control keypad: Menu M2 G2.5)
Code Parameter Min Max Unit Default Cust ID Note
P2.5.1
P2.5.2
P2.5.3
P2.5.4
P2.5.5
Prohibit frequency
range 1 low limit
Prohibit frequency
range 1 high limit
Prohibit acc./dec.
ramp
Output frequency
limit 1 supervision
Output frequency
limit 1;
Supervised value
0.00 Par. 2.5.2 Hz 0.00 509 0=Not used
0.00 Par. 2.1.2 Hz 0.00 510 0=Not used
0.1 10.0 Times 1.0 518
0=No limit
0 2 0 315
0.00 Par. 2.1.2 Hz 0.00 316
1=Low limit supervision
2=High limit supervision
Table 22. Prohibit frequency parameters, G2.5
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Parameter lists vacon • 15
3.7 Motor control parameters (Control keypad: Menu M2 G2.6)
Code Parameter Min Max Unit Default Cust ID Note
P2.6.1 Motor control mode 0 1 0 600
P2.6.2 U/f ratio selection 0 3 0 108
P2.6.3 Field weakening point 8.00 320.00 Hz 50.00 602
P2.6.4
P2.6.5
P2.6.6
P2.6.7
P2.6.8 Switching frequency 1.0 Varies kHz Varies 601
P2.6.9 Overvoltage controller 0 1 1 607
P2.6.10
Voltage at field
weakening point
U/f curve midpoint
frequency
U/f curve midpoint
voltage
Output voltage at zero
frequency
Undervoltage
controller
10.00 200.00 % 100.00 603 n% x U
0.00
0.00 100.00 % 100.00 605
0.00 40.00 % Varies 606 n% x U
0 1 1 608
par.
P2.6.4
Hz 50.00 604
0=Frequency control
1=Speed control
0=Linear
1=Squared
2=Programmable
3=Linear with flux optim.
nmot
n% x U
nmot
Parameter max. value =
par. 2.6.5
nmot
See Table 31 for exact
values
0=Not used
1=Used (no ramping)
0=Not used
1=Used
Table 23. Motor control parameters, G2.6
24-hour support: +358 (0)201 212 575 • Email: vacon@vacon.com
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