5 Operation
82 SD780 Series Servo Technical Manual
clamp
mode
Speed mode, setting the switching speed zero clamp signal (/ZCLAMP) working
mode:
0- Invalid.
1- Speed command is set to 0, not clamped after shutdown.
2- Speed command is set to 0, clamped after shutdown.
3- Speed command is lower than “zero position clamp speed threshold”, and
then speed command is set to 0 at first, clamped after stop.
Pn313
Zero
Speed
Clamp
Speed
Threshold
0
～
10000
10
rpm
0x0313
Immediately
Set the zero control switching threshold when “zero speed clamp mode”(Pn312)
is set to 3.
The relationship between zero fixed speed thresholds and zero fixed function is shown in the figure
below:
2.
Zero-fixed wiring
The zero-fixed signal is a universally configurable digital input. See “Sequence Input Circuit” for
wiring details.
5.3.5 Rotation Detection Signal
When the motor speed is greater than the set value, a digital rotation detection signal (/TGON) is
output.
1.
Configuration of rotation detection signal
Function
code
Parameter
Range
Default
Unit
Communication
address
When
enabled
Pn317
Rotation
determination
threshold
1
～
10000
20
rpm
0x0317
Immediately
When the motor speed is higher than the set value, the switch rotation detection
signal (/TGON) is output.
Speed
Zero position clamp
speed threshold Pn313
/ZCLAMP
Zero position clamp function
V-REF speed command
