Specifications

Chapter 3 I/O ports
- 51 -
CN2-31 Speed command: SPD-CMD(input)
● Function
Input the speed command voltage signal which is obtained by [parameter mode]→[9: speed conversion
factor].
The direction of rotation is specified by the polarity (+/-) of the speed command and input signals of
[CN2-4 FWD enable: FWD-EN ] and [CN2-5 REV enable: REV-EN].
While the [FWD enable]: is ON the actuator rotates forward when the [CN2-31 Speed command:
SPD-CMD] is [+]. In contrast, the actuator rotates in reverse for the [CN2-31] is [-].
While the [REV enable]: is ON the actuator rotates in reverse the [CN2-31 Speed command: SPD-CMD]
is [+]. In contrast, the actuator rotates forward when the [CN2-31] is [-].
When both signals [FWD enable] and [REV enable] are ON or OFF, depending on the setting of
[parameter mode]→[7: zero clamp], the actuator is either holding the position (setting:1) or zero speed
(setting: 0).
CN2-31 Speed cmd.: SPD-
CMD
＋Command −Command
CN2-4 FWD enable: FWD-EN ON OFF ON OFF
ON Zero clamp, zero speed REV rotation Zero clamp, zero speed FWD rotation
CN2-5 REV enable:
REV-EN
OFF FWD rotation Zero clamp, zero speed REV rotation Zero clamp, zero speed
● Connection
Connect the voltage signal to the [CN2-31: speed
command: SPD-COM] and the [CN2-32: SG-GND].
Plan the command circuit referring to the examples below.
◆ By a potentiometer ◆ By host command
CN2-32 Speed command common: SG-GND(input)
● Function
The port is the common ground for the [CN2-31 speed command: SPD-CMD].
SPD
-
COM
SG-GND
CN2
-
31
CN2
-
32
SPD
-
COM
SG-GND
CN2
-
31
CN2
-
32
15V
15V
R
R
VR
R: 1/2W
330
Ω
VR: 25HP-1; 2kΩ by Sakae
Multi-turn wire-wound
potentiometer
SPD
-
COM
SG-GND
CN2
-
31
CN2-32
+10V
to
−10V
10.0
VfactorconversionSpeed
voltagecommandSpeedspeedMotor ×＝