4.3.5.5. SA1X (Medium-Scale 1 Axis Drive Unit Option)

4.3.5.5. SA1X (Medium-Scale 1 Axis Drive Unit : Option)

 

The drive unit plays a role of amplifying power by sending current to each motor according to the current command from the servo board. The medium-scale additional axis drive unit can drive one motor, and the following figure shows is components.

 

 

Figure 4.54 BD554 Component Layout

 

 

Table 4‑57 The Components of SA1X (Medium-Scale 1 Axis Drive Unit : Option)

Components		Function
BD554 (Amp Board)	Logic Part	Conversion of PWM signal from the 6 axis servo amp into upper and lower drive signals of IPM and execution of error processing and regenerative control
	Gate Power Module	Generation of gate power
	Current Detection Unit	Detection of the current flowing into the motor
	DB Control	Control of dynamic brake according to the signals from the 6 axis servo amp
Other Components	Heat Sink	Emission of heat generated from IPM
	IPM	Switching Device

 

 

Table 4‑58 SA1X (Medium-Scale 1 Axis Drive Unit : Option) Connector

Name	Use	External Device Connection
CNPWM	PWM signal and error signal	CNPWM7 or CNPWM8 of the 6-Axis Servo Amp (BD552 or BD553)
CNM	Power for motor drive	AMC1 or AMC2
CNFG	Motor frame ground	AMC1 or AMC2
CNPN1,2	PN voltage is inputted from the diode module	CNPN2 of the 6-Axis Servo Amp (BD561 or BD563)s
CNDB	DB drive of Additional Axis	6-Axis Servo Amp CNDB7, CNDB8