2.3 Overview of Function Code
C
hap.
2
FUN
CT
IO
N
C
O
D
E
S
L54
Torque Bias (Mode)
L58 (Torque Bias, P constant)
L59 (Torque Bias, I constant)
L60 (Torque Bias, Driving gain)
L61 (Torque Bias, Braking gain)
L62 (Torque Bias, Digital 1)
L63 (Torque Bias, Digital 2)
L64 (Torque Bias, Digital 3)
L54 specifies whether to use analog or digital torque bias.
Data for L54
Function
0
Enable analog torque bias.
1
Enable digital torque bias.
2
Enable PI torque bias
3
Enable DCP torque bias
■
Torque Bias (L54)
The torque bias control outputs torque in advance corresponding to the applied load in order to
reduce the impact when the brake is released.
A torque bias can be specified either by analog or digital input
Run forward
Motor speed
Run reverse
Driving
Driving
Braking
Braking
Torque bias
+ setting
- setting
+
-
Polarity of torque bias and
driving/braking
In the figure shown above, when viewed from the motor shaft, the counterclockwise rotation means
the forward direction, and the clockwise rotation, the reverse direction. A positive torque bias (+)
corresponds to forward direction torque.
[12]
Driving
gain
Braking
gain
L60
L61
[C1]
[V2]
×
C42
Gain
Reference torque
to inverter
C41
+
-
Offset
C43
Filter
Analog torque bias
command
Analog torque bias
command
Analog torque bias
command
Torque bias (Digital 1)
Torque bias (Digital 2)
Torque bias (Digital 3)
L62
L63
L64
0
+
+
+
200%
-200%
BTBB
0%
PI
×
C37
C36
+
-
C38
×
C32
C31
+
-
C33
Torque bias 1, 2
TB1,TB2
TB1=OFF TB2=OFF
TB1=ON
TB1=OFF
TB1=ON
TB2=OFF
TB2=ON
TB2=ON
RS-485 port 1
communication
RS-485 port 2
communication
2
0
1
L54
Torque Bias
(Mode)
H30
= x0xxh
= x1xxh
= x2xxh
Communication
Link Operation
0, 2
1, 3
y99
Loader Link
Function
(Mode)
Enable
communications link
LE
OFF
ON
×
Hold torque
bias
H-TB
OFF
ON
Driving
Braking
Direction
Yes
No
Startup timer end
500 ms
0 ms
L55
Torque bias
(Stratup time)
L58
L59
Torque Bias (P constant)
Torque Bias (Integral time)
ASR
BTBG
+
+
+
-
Unbalanced Load
Compensation
+
+
Run
command
=1
=0
L99 Bit
2
L57
Torque bias
(Limiter)
-L57
=0
=1
L99 Bit
2
L55
Torque Bias
(Startup timer)
PI Torque Bias
3
DCP torque bias
command
CAN
communication
= x3xxh
Block Diagram of Torque Bias Generator
2-155
Содержание Frenic lift
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