General electric VAT2000
.pdf
6. Control Functions and Parameter Settings
A04-0~7 |
Custom parameters |
|
C10-0~7: Allow selection of custom parameters. Refer to section 4-7 for details. |
|
|
|
Block B, C parameter skip |
A05-0~2 |
|
|
|
A10-0
A10-1
A10-3
A10-4
A10-5
A11-2
A11-3
These parameter allows selection of parameters to be displayed.
Unnecessary displays can be reduced with this parameter, allowing easier operation. All displays are set to skip as the default.
ASR response
This parameter is used to calculate the gain of the ASR.
ASR gain :
Kp = ASR response (A10-0) [rad/s] x |
Machine time constant (A10-1 or B15-0) [ms] |
||||
|
1000 |
|
|||
|
|
|
|
|
|
ASR integral time constant : |
|
|
|
||
4 |
|
|
Compensation coefficient (A10-2) [%] |
||
Ti = |
|
|
x |
|
|
ASR response (A10-0) [rad/s] |
|
|
|||
100 |
|
||||
|
|
|
|||
Machine constant − 1
This is used to calculate the ASR gain. This is valid when the sequence input machine time constant changeover is OFF (MCH = OFF).
TM [s] = |
GD2 [kgm2] × 1.027 × (Nbase [min-1])2 |
TM |
: Machine time constant |
|
|
GD2 |
: Total inertia load and motor |
||
375 × Power [W] |
||||
|
||||
|
Nbase: Base speed |
|||
|
|
|||
Power: Motor rated output
ASR drive torque limit
ASR regenerative torque limit
Emergency stop regenerative torque limit
ACR drive torque limit
ACR regenerative torque limit
The output current is limited by the overcurrent limit value (B18-0). To generate motor torque set a value larger than the value given in below expression. .
(Exciting current)2 × (Torque current)2 × ≤
100 B18-0
Motor rated current (B01-6)
6-36
6. Control Functions and Parameter Settings
B00-7
B01-7
Carrier frequency
The PWM carrier frequency and control method can be changed to change the tone of the magnetic sound generated from the motor. The relation of the setting range and control method is shown below.
1.0 to 15.0 : Mono sound method (Actual carrier frequency: 1.0 to 15.0kHz) 15.1 to 18.0 : Soft sound method 1 (Basic carrier frequency: 2.1 to 5.0kHz) 18.1 to 21.0 : Soft sound method 2 (Basic carrier frequency: 2.1 to 5.0kHz)
[Mono sound method]
This control method has a constant PWM carrier frequency. When a low carrier frequency is set, an annoying magnetic sound may be generated.
[Soft sound method]
This control method changes the PWM carrier frequency at a fixed cycle, producing a softer sound and lower electrical noise than the mono-sound method..
(Note 1) There are cases when the setting value and actual carrier frequency (reference carrier frequency for soft sound method) differ. Confirm the actual carrier frequency with D03-3.
(Note 2) In some cases the effect of noise onto the inverter's peripheral devices can be reduced by lowering the carrier frequency.
(Note 3) In applications using sudden acceleration/deceleration with the overcurrent limit function in the V/f control mode (C30-0 = 1, 2), or in applications requiring a highspeed response in the speed sensor-less vector control mode (C30-0 = 3), setting a carrier frequency of 4.0kHz or more in the mono sound method is recommended.
(Note 4) If set to higher than the specified carrier frequency, the output current must be derated. Refer to Fig. 1-2 in Appendix 1 for details.
(Note 5) If the heat sink temperature 70°C is exceeded and the output current exceeds 90%, the carrier frequency will automatically change to 4kHz.
6-37
6. Control Functions and Parameter Settings
B02-0~9 |
Motor circuit constant (IM) |
|
|
|
||
|
R 1 |
l 1 |
l2 |
R 1 |
Lσ |
|
|
|
|
R m |
|
|
|
V1 |
|
|
R 2 /s |
V1 |
M ’ |
R 2 ’/s |
|
|
|
||||
|
|
|
M |
|
|
|
T-type equivalence circuit |
T-I type equivalence circuit |
M' = M2/(l2 + M)
L σ = (l 1 + M)-M2/( l 2 + M)
R2' = (M/( l 2 + M))2 • R2
B03-0~4 |
Motor circuit constant (PM) |
|
|
Refer to section 6-8-3 for details
B05-0~5 |
Frequency skip |
|
|
By setting this parameter, the motor's mechanical resonance point at a specific frequency can be skipped.
Valid only during V/f control (C30-0 = 1, 2).
t freq ue ncy |
B05-4 |
B05-5 |
|
O utpu |
|||
|
|
||
|
B05-2 |
B05-3 |
|
|
B05-0 |
B05-1 |
Setting frequency
(Note) This function controls the frequency setting, so the above skip frequency area will be passed with a ramp function.
6-38
6. Control Functions and Parameter Settings
B06-0~6 |
Ratio interlock setting |
|
|
The ratio interlock operation executes the following expression and corresponds to each speed setting input signal.
|
Y = AX + B + C |
|
|
|
|
|
|
X: Frequency (speed) setting input |
|
A: Coefficient (B06-0) |
|||
|
Y: Frequency (speed) command |
|
B: Bias (B06-1, 4 where B" = 0) |
|||
|
(operation results) |
|
|
C: Bias (C07-3) |
|
|
|
|
(C07-3) |
Upper/lower lim it |
|
|
|
|
|
Bias |
|
IPA SS |
||
FS V |
|
|
|
|
||
|
|
|
|
O N |
||
|
|
|
B 0 6-2 ,5 |
Frequency |
||
FS I |
(X ) |
|
|
|
||
|
|
|
O F F |
(speed) |
||
PC , serial |
Input |
+ |
|
|
|
com m and |
interface |
|
|
|
|
||
|
|
|
|
|
|
|
option |
|
|
|
B 0 6-3 ,6 |
|
|
|
(A ) |
(B ) |
|
|
|
|
|
|
IV LM |
|
|
|
|
|
Coefficient |
(B ") |
Bias |
|
B U P |
|
|
|
increase/ |
|
|
||
|
+ |
|
|
|
||
|
(B 06-0) |
|
decrease |
|
B D W |
|
|
|
(B ') |
|
buffer |
|
|
Bias (B 06-1, 4)
Bias increase/ |
Currently valid |
||||||||||||||
decrease buffer |
|||||||||||||||
acceleration ram p tim e |
|||||||||||||||
value (B“) |
|||||||||||||||
|
|
|
|
Currently valid |
|||||||||||
|
|
|
|
|
|||||||||||
|
|
|
|
|
deceleration ram p tim e |
||||||||||
|
|
|
|
|
0 clear |
||||||||||
0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Tim e |
|
BU P |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
BD W |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
IV LM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(Ratio interlock bias increase/decrease function)
When IVLM turns ON, is possible to increase/decrease the bias (B”), by BUP and BDW functions. This bias is added to the ratio interlock bias value (B’)
If BUP turns ON while IVLM is ON, the bias buffer (B") increases its value with the currently valid acceleration ramp rate. When BDW turns ON, the bias buffer (B") decreases its value with the currently valid deceleration ramp rate.
If both BUP and BDW turn OFF while IVLM is ON, the current bias buffer value (B") is held. If IVLM turns OFF, the current bias buffer value(B") is cleared to zero, and the BUP and BDW operations are ignored.
If the operation command (RUN) turns OFF, the current bias buffer value (B") is cleared to zero. The BUP and BDW operations are also ignored in this case.
6-39
6. Control Functions and Parameter Settings
B10-0
B10-1
B10-2
B10-3
Acceleration ramp time –2
Deceleration ramp time –2
Acceleration ramp time for jogging
Deceleration ramp time for jogging
The ramp up/down time can be switched by turning the sequence command CSEL to ON. Set the CSEL command input terminal with C03-6 parameter.
The ramp time for jogging can be set independently with B10-2 and -3.
cy |
|
|
|
CSE L =O FF |
en |
|
|
|
|
|
|
|
Deceleration 1 |
|
qu |
|
|
|
|
|
|
|
||
|
|
|
(A01-1) |
|
fre |
B10-2 B10-3 |
|
|
|
|
|
|
||
|
|
|
||
utp ut |
|
|
|
|
|
|
|||
|
|
|
|
|
CSE L =O FF |
CSE L =O N |
|||
O |
Acceleration 1 |
Deceleration |
|
2 |
|
(A01-0) |
(B10 |
|
-1) |
|
|
|||
|
|
|||
|
|
|
|
|
|
|
|
|
|
Tim e
F.JO G
F.RUN
EM S-CS EL (C03-6=14)
The above run example shows the case when the sequence command CSEL is connected to the EMS terminal (C03-6=14), and the run is decelerated with ramp down time −2 during emergency stop.
(Note) The acceleration or deceleration ramp time set, is the time to reach maximum frequency (B00-4) or maximum speed (B01-4) from zero, or the opposite.
6-40
6. Control Functions and Parameter Settings
B10-4
B10-5
S-shape characteristics
Acceleration/deceleration with the S-shape pattern is possible by setting this parameter.
O utp ut fre qu en cy
|
|
|
|
|
|
|
|
|
Tim e |
|
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
||
B10-4 |
|
ts |
ta |
|
tb |
ts |
|
B10-4 |
||
|
|
|||||||||
|
|
|
|
|
|
|
|
|
||
|
|
|
(A01-0, B10-0) |
|
(A01-1, B10-1) |
|||||
|
|
|
|
(B41-0 to 7) |
|
(B42-0 to 7) |
||||
This parameter indicates the time of the section shown as “ts” above. The total acceleration/deceleration times ta and tb will not change.
When this parameter is set, all the acceleration and deceleration ramps available in the VAT2000 will be S-type.
(Note) Set so that the relation of the B10-4 setting and acceleration/deceleration time is as shown below.
B10-4 Setting value (ts) × 2 ≤ acceleration/deceleration time (ta, tb)
Time unit multiplier
The acceleration/deceleration time setting unit can be changed when an acceleration/ deceleration time in a wider range is to be set.
B10-5 = 1 (standard) : × 1
2: × 0.1
3: × 10
This parameter will affect all acceleration/deceleration time parameters.
6-41
6. Control Functions and Parameter Settings
B11-0~7
B11-8
Program frequency (speed) setting
Selection mode setting
Up to eight fixed output frequencies or speed are allowed when PROG function is enabled. Set desired frequencies or speed to parameters B11-0 to B11-7, in percentage of maximum output (B00-4) and (B01-4).
Selection of speeds or frequencies are done through auxiliary functions S0, S1, S2, S3, and SE, as shown in below table.
(1) For binary selection mode (B11-8=1)
|
Sequence command |
|
Selected |
|||
|
|
|
|
|
frequency |
|
SE |
S3 |
S2 |
S1 |
S0 |
||
|
||||||
|
|
|
|
|
|
|
* |
* |
OFF |
OFF |
OFF |
B11-0 |
|
|
|
|
|
|||
OFF |
OFF |
ON |
B11-1 |
|||
|
|
|||||
|
|
OFF |
ON |
OFF |
B11-2 |
|
|
|
OFF |
ON |
ON |
B11-3 |
|
|
|
ON |
OFF |
OFF |
B11-4 |
|
|
|
ON |
OFF |
ON |
B11-5 |
|
|
|
ON |
ON |
OFF |
B11-6 |
|
|
|
ON |
ON |
ON |
B11-7 |
|
* : SE and S3 are not used.
(1) For direct selection mode (B11-8=2)
|
Sequence command |
|
Selected |
||
SE |
S3 |
S2 |
S1 |
S0 |
frequency |
|
|||||
|
|
|
|
|
|
OFF |
OFF |
OFF |
OFF |
OFF |
Latest |
|
|
|
|
|
value |
OFF |
OFF |
OFF |
OFF |
ON |
B11-0 |
OFF |
OFF |
OFF |
ON |
OFF |
B11-1 |
OFF |
OFF |
ON |
OFF |
OFF |
B11-2 |
OFF |
ON |
OFF |
OFF |
OFF |
B11-3 |
ON |
OFF |
OFF |
OFF |
OFF |
Latest |
|
|
|
|
|
value |
ON |
OFF |
OFF |
OFF |
ON |
B11-4 |
ON |
OFF |
OFF |
ON |
OFF |
B11-5 |
ON |
OFF |
ON |
OFF |
OFF |
B11-6 |
ON |
ON |
OFF |
OFF |
OFF |
B11-7 |
When S0 to S3 are all OFF the latest frequency set value is hold. After power ON the latest value is cleared to “0”
O utpu t fre q ue ncy (Sp ee d)
(C04-4) P RO G
odem |
=18 |
|
(C04-6) S 0 |
|
|
|
|
Binary |
B 11- |
|
(C04-7) S 1 |
|
(C04-8) S 2 |
||
|
|
|
|
de |
|
|
(C04-6) S 0 |
|
|
||
|
|
||
8 =2 |
|
(C04-7) S 1 |
|
m o |
|
||
|
(C04-8) S 2 |
||
ary |
11- |
|
|
|
|
||
yn |
B |
|
(C04-9) S 3 |
B |
|
|
|
|
|
|
|
|
|
|
(C05-0) S E |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
B11-7 |
|||||||
|
|
|
|
|
|
|
|
|
|
|
|
B11-6 |
|
|
|
|
|
B11-6 |
||||
|
|
|
|
|
|
|
|
|
|
B11-5 |
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
B11-4 |
|
|
|
|
|
(A00-2) |
|||||||||
(A00-2) |
|
|
|
B11-3 |
|
|
|
|
|
|||||||||||||
A00-0 |
|
B11-2 |
|
|
|
|
|
A00-0 |
||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
||||||||||||
|
|
B11-1 |
|
|
|
|
|
|
|
|
||||||||||||
B11-0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Time |
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Program run example (When command RUN is ON)
Set the PROG command input terminal with C04-4. Set the S0, S1, S2, S3 and SE input terminals with C04-6~C05-0.
6-42
6. Control Functions and Parameter Settings
|
B13-0 |
Torque setting |
|
|
|
|
|
Refer to section 5-9-2 for details on selecting the torque setting. |
|||
|
|
||||
|
|
Torque ratio 1 setting |
|
|
|
|
B13-1 |
|
|
||
|
|
Refer to section 5-9-5 for details on selecting the torque ratio 1 setting. |
|||
|
|
||||
|
|
Torque bias 1 setting |
|
|
|
|
B13-2 |
|
|
||
|
|
Refer to section 5-9-3 for details on selecting the torque bias 1 setting. |
|||
|
|
||||
|
|
Torque ratio 2 setting |
|
|
|
|
B13-3 |
|
|
||
|
|
Refer to section 5-9-6 for details on selecting the torque ratio 2 setting. |
|||
|
|
||||
|
|
Double rating speed ratio setting |
|
|
|
|
B13-4 |
|
|
||
|
|
Refer to section 5-9-4 for details. |
|
|
|
|
|
|
|
||
|
|
Drooping setting |
|
|
|
|
B13-5 |
|
|
||
|
|
Set the drooping value within the range of the following expression. If it becomes unstable, |
|||
|
|
||||
|
|
adjust the drooping setting value or the related parameters. |
|||
Drooping setting value (B13-5) [%] |
Machine time constant (A10-1 or B15-0) [ms] |
||||
|
|
|
x ASR response (A10-0) [rad/s] x |
|
< 0.5 |
|
|
100 [%] |
1000 |
||
|
|
|
|
||
M otor speed [m in−1] |
|
Drooping setting value (B13-5) [% ] |
B ase speed (B01-5) [m in −1] |
× |
|
100% |
|
Set speed |
|
|
|
100% |
Torque com m and |
|
|
||
−100% |
value |
||
6-43
6. Control Functions and Parameter Settings
B13-6
B13-7
ASR gain compensation in constant power range
ACR gain compensation in constant power range
Increase or decrease each ASR gain and ACR gain in power constant speed range.
ACR gain
AS R gain
B13-6
B13-7 100% 
M otor speed
Base speed |
M ax speed |
(B 01-5) |
(B 01-4) |
B14-0 |
ASR dead band setting |
|
Refer to Fig. 5-1 for details. |
|
|
|
Machine time constant 2 |
B15-0 |
|
|
This is used to calculate the ASR gain. This is valid when the sequence input machine time |
|
|
|
constant changeover is ON (MCH = ON). |
|
GD2 [kgm2] 1.027 (Nbase[min−1])2 TM2 |
: Machine time constant |
||
TM [s] = |
375 Power [W] |
GD |
: Total inertia of motor and load |
|
Nbase : Base speed |
||||
|
|
|||
Power : Motor rated output
B17-0~3 |
V/f middle point |
|
|
A V/f characteristic as shown on the right can be obtained for motors having special V/f characteristics.
(Note)
Set so that F1 ≤ F2 ≤ Base frequency (B00- 5) and V1 ≤ 2.
Voltag e
1 00 % 
B 17-1 
(F 2, V 2)
B 17-3
(F 1, V 1)
|
|
|
|
|
|
|
|
|
Freq ue nc y |
|
|
|
|
|
|
|
|
||
|
|
|
|
|
B 1 7-2 B 1 7-0 |
B 0 0-5 |
|||
|
|
|
B a se |
|
|
|
|
Freque nc y |
|
6-44
6. Control Functions and Parameter Settings
B18-0
B18-1,2
B18-3
B18-4
B18-5
B18-6
Over current limit
Check next page
Over current limit gain
Current stabilisation gain
Over current breakdown prevention gain
Over current stall prevention time constant
The over current limit is a function that lowers the output frequency and suppresses the current so that the motor current does not exceed this parameter setting value during starting or constant running. The setting uses the motor rated current (B00-6) as 100%.
Normally, set the default value (150%).
(Note) Set a value larger than the motor no-load current.
Current stabilization control
The overcurrent limit function is configured of the following three control blocks.
Overcurrent Vecto r
limit function
Overcurrent lim it function
Frequency compensation control
(1)Overcurrent vector limit function
This uses the overcurrent as a vector, and generates a suppressing voltage vector instantly to suppress the current. The response is adjusted with the overcurrent limit gain (B18-3).
Normally, set the default value (0.25).
If the setting value is increased, the response will become faster, but the operation may become unstable.
(2)Current stabilisation control
This suppresses the sudden changes during overcurrent suppression by controlling the output frequency. The response is adjusted with the over current stabilisation gain (B18-4).
Normally, set the default value (0.25).
If the setting value is increased, the torque vibration will be reduced, but the operation may become unstable.
(3)Frequency compensation control
This feeds back the voltage suppressed with the overcurrent vector limit function to the frequency command
and prevents breakdown. The response is adjusted with the over current stall prevention gain (B18-5) and over current stall prevention time constant (B18-6). Normally, set the default value (B18-5 = 1.0, B18-6 = 100). If the gain setting value (B18-5) is increased or the time constant value (B18-6) is decreased, the response will become faster, but the operation may become unstable.
(Note) The overcurrent limit function is valid at all times regardless of whether automatic tuning has been executed.
6-45