TECO A510s - Speed Limit Input Method; Speed Limit Bias Setting

4-297
Table 4.4.17 Speed limit input method
Input method Input terminal
Related
parameter
setting
Description
1
Voltage input
(-10V – 10V)
AI1
21-02=0 Analog input (AI1 or AI2) as speed limit
00-05=1
Analog input (AI1 or AI2 is set by 04-05 ) as reference
frequency input
04-00=2,3
Terminal AI1 signal level : -10V - 10V
(if the speed limit is plus value, set 04-00=0, 1)
Voltage input
(10V - 10V)
AI2
(SW2=” V ”)
21-02=0 Analog input (AI1 or AI2) as speed limit
00-05=1
Analog input (AI1 or AI2 is set by 04-05 ) as reference
frequency input
04-00=0,2 Terminal AI2 signal level : 0V - 10V
04-05=12 AI2 will be added to terminal AI1 as speed limit value
Current input
(4 - 20mA)
AI2
(SW2=” I ”)
21-02=0 Analog input (AI1 or AI2) as speed limit
00-05=1
Analog input (AI1 or AI2 is set by 04-05 ) as reference
frequency input
04-00=1,3 Terminal AI2 signal level : 4 – 20mA
04-05=12 AI2will be added to terminal AI1 as speed limit value
2
Parameter
21-03 setting
─
21-02=1 Set the speed limit to be controlled by 21-03
21-03 Set speed limit
3
Communicatio
n Input (2502H)
S+ & S- 21-02=2 Communication is used to be the speed limit.
The rotation direction in speed control depends on the speed limit signal:
 Positive voltage: Forward, speed limit (21-03 + 21-04).
 Reverse speed limit is zero or reversal direction (-21-04).
 Negative voltage: Reverse, speed limit (-21-03-21-04).
 Forward, speed limit is zero or forward direction (21-04).
If the speed limit bias is set to 0, the motor speed will be limited to 0 when the rotation direction of the motor and
the speed limit are in reverse.
Example: The speed limit analog signal is a positive voltage and the motor is in forward operation, then the
effective speed range in torque control is from 0 to the analog speed limit value.
21-04: Speed limit bias setting
Speed limit bias (21-04) is used to adjust the boundaries of the speed limit. The speed limit bias (21-04) can be
used to set the same limit value in forward and reversal direction and is set as a percentage of the maximum
output frequency (01-02).