Keyence SV Series User Manual

7-14
7-4 Speed Control
- SV Series User’s Manual -
PARAMETER SETTING AND OPERATION OF PULSE/ANALOG INPUT
7
Analog Speed Command (V-REF) Setting
■ Gain setting for V-REF input
To set up analog voltage level required for operation of servo motor at rated speed.
Max. permissible input voltage is DC 12V.
■ Offset adjustment for V-REF input
Due to small voltage bias of higher-level equipment or external circuit, servo motor may operate at a very small
speed, even if "V-REF" is 0V. Such small bias is called offset which can be adjusted.
The adjustment can be done manually or automatically.
● Auto adjustment
Command voltage reference value can be adjusted automatically by inputting a reference analog voltage.
Parameter
type
Category Level Parameter name
Setting
range
Setting unit Default
Enable
timing
VEL_01 Speed Basic V-REF input gain 150 to 3000 0.01V/RAT 600
After
changing
Rated rotation speed
Motor rotation speed
Rated rotation speed
Default value
Input voltage (V)
When VEL_01 is 600
xxxxxx
Rated rotation speed when input voltage is 6V.
(Solid line in diagram)
When VEL_01 is 150
xxxxxx
Rated rotation speed when input voltage is 1.5V.
(Broken line in diagram)
- 12 - 8 - 4
4812
Note
Command
voltage
Offset
Command
speed
Command
voltage
Auto-adjust offset
inside servo amplifier
Auto-compensate
offset
Command
speed

Keyence SV Series Specifications

General

Display	LCD
Output Type	Digital, Analog
Power Supply	24V DC
Communication	Ethernet, RS-232, RS-485
Series	SV Series
Programming Language	Ladder Logic
Mounting	Panel mounting
Operating Temperature	0 to +50°C
Storage Temperature	-20 to +60°C
Vibration Resistance	10 to 55 Hz
Shock Resistance	30G