Wecon VD2 SA Series Servo Drives User Manual (Full V1.0)
78
WECON technology Co., Ltd
Figure 6-33 Zero-speed signal waveform
To use the motor zero-speed signal output function, a DO terminal of the servo drive should be
assigned to function 133 (ZSP, zero-speed signal). The function code parameters and related DO
function codes are shown in Table 6-33 and Table 6-34.
Function
code
Name
Setting
method
Effective
time
Defaults Range
Definition
Unit
P05-19
Zero speed
output signal
threshold
Operation
setting
Effective
immediately
10
0~6000
Set zero-speed
output signal
judgment
threshold
rpm
Table 6-33 Zero-speed output signal threshold parameter details
DO function
code
Function
name
Function
133
ZSP, zero
speed signal
Invalid, when the difference between the motor speed feedback
and the given value is greater than the set value of P05-19;
Valid, when the difference between the motor speed feedback
and the given value is less than the set value of P05-19
Table 6-34 Description of DO zero-speed signal function code
(3) Speed consistent signal
When the absolute value of the deviation between the actual speed of the servo motor after
filtering and the speed instruction meets a certain threshold [P05-17], it is considered that the
actual speed of the motor has reached the set value, and the servo drive outputs a speed
coincidence signal (V-COIN) at this time. Conversely, if the absolute value of the deviation between
the actual speed of the servo motor and the set speed instruction after filtering exceeds the
threshold, the speed consistent signal is invalid.
