Powtran PI500 series User Manual

Chapter 5 Function parameter
101
Chapter 5
PPO3 format
2
PPO5 format
3
F9.06
Communication read
current resolution
0.01A
0
0
☆
0.1A
1
F9.07
Communication card
type
Modbus communication card
0
0
☆
Profibus communication card
1
Reserved
2
CAN bus communication card
3
5-2-12.Torque control parameters FA.00-FA.07
Code
Parameter name
Setting range
Factory
setting
Change
limits
FA.0
0
S/T control mode
selection
speed control(S)
0
0
★
torque control (T)
1
Used to select the inverter control mode: speed control or torque control.
PI500 multifunction digital terminal has two related functions on torque control: torque
control banned (function 29), and speed control / torque control switching (function 46). The two
terminals must use in conjunction with FA.00 so as to switch between speed control and torque
control.
When the speed control / torque control switching terminal is invalid, the control mode is
determined by FA.00, if the terminal is valid, the control manner is equivalent to the FA.00's value
negated.
In any case, when the torque control ban terminal is valid, the inverter is fixed at speed
control mode.
FA.01
Torque setting source
keyboard setting (FA.02)
0
0
★
Analog AI1 setting
1
Analog AI2 setting
2
Panel potentiometer setting
3
High-speed pulse setting
4
Communications reference
5
MIN(AI1,AI2)
6
MAX(AI1,AI2)
7
High-speed pulse setting
8
FA.02
Torque figures set
-200.0%~200.0%
150%
☆
FA.01 is used to select the torque setting source, there are 9torque setting modes in all.
The torque setting adopts the relative value, the 100.0% corresponds to the rated torque of
inverter. Setting range is from -200.0% to 200.0%, indicating that the maximum torque of inverter
is 2 times of the rated torque of inverter.
When the torque setting to a positive, frequency converter operate forwardly, When the
torque setting to a negative, inverter operate inversely.
When the torque setting adopts mode 1 to 8, the 100% of communications, analog input and
pulse input corresponds to FA.02.
FA.03
Torque control acceleration time
0.00s~650.00s
0.00s
☆
FA.04
Torque control deceleration time
0.00s~650.00s
0.00s
☆
Under the torque control mode, the difference between the motor output torque and load
torque determines the change rate in speed of the motor and load, therefore, the motor speed may
rapidly change, resulting in the problems such as noise or excessive mechanical stress. By setting
the torque control ac/deceleration time, you can make a smooth change of motor speed.
But the occasions that needs the rapid response of torque, the torque control
ac/deceleration time must be set to 0.00s. For example: when two hardwired motors drag the
same one load, in order to ensure that the load is evenly distributed, you must set one inverter as
the master unit that works under the speed control mode, the other inverter as the auxiliary unit

Powtran PI500 series Specifications

General

Brand	Powtran
Model	PI500 series
Category	DC Drives
Language	English