2.3 Overview of Function Code
C
hap.
2
FUN
CT
IO
N
C
O
D
E
S
Digital torque bias (L54 = 1)
Setting L54 data to "1" enables torque bias setting with digital input.
When L54 = 1, setting "60" or "61" to any general-purpose, programmable input terminal (by
function codes E01 to E08, E98 and E99) assigns command
TB1
or
TB2
, respectively. If neither
TB1
nor
TB2
is assigned, the torque bias is 0 (%).
The table below shows the relationship between the
TB1
/
TB2
command settings and the torque bias
value. If only either one of those commands is assigned, the unassigned terminal is regarded as OFF.
L60 and L61 specify the gains at the driving and braking sides.
When the inverter is running, the reference torque bias should be held at the host controller side.
Chattering of a reference torque bias during running will result in vibration.
If it is difficult to hold the reference torque bias at the host controller side, use a torque bias hold
command and startup timer described in the description of L55 (Torque bias startup timer).
TB1 TB2
Torque bias value
OFF OFF Specified by L62
(Data setting range: -200 to 200 (%) with the forward direction torque as +)
ON
OFF Specified by L63
(Data setting range: -200 to 200 (%) with the forward direction torque as +)
OFF ON
0 (%) (No torque bias)
ON
ON
Specified by L64
(Data setting range: -200 to 200 (%) with the forward direction torque as +)
PI torque bias (L54 = 2)
Setting L54 data to "2" enables PI torque bias setting with analog input. A torque sensor is used for
measuring braking torque, calculate torque bias by making the output of torque sensor become 0V
before releasing brake. It is possible to adjust it by the following function codes.
■
Torque Bias (P constant) (L58)
Specify the P constant used in PI torque bias calculation.
- Data setting range: 0.01 to 10.00
■
Torque Bias (I constant) (L59)
Specify the I constant used in PI torque bias calculation.
- Data setting range: 0.00 to 1.00 (s)
DCP torque bias
(L54 = 3)
Setting L54 data to "3" enables torque bias command from DCP protocol communication.
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Содержание Frenic lift
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