4.3.5.5. SD1Z(Servo gun 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. Servo gun drive unit can operate 1 motor of 50A or lower and consists as follows.

Figure 4.61 Servo gun BD554 part layout

Table 4‑64 The Composition of SD1Z

Components		Function
BD554 (IPM Board)	Logic Section	PWM signal from the 6-axis servo drive is converted to upper and lower drive signal of IPM, and the error is processed.
	Gate Power Module	Generation of gate power
	Current Detection Unit	Detection of the current flowing into the motor
Other Components	Heat Sink	Emission of heat generated from IPM
Other Components	IPM	50A Switching Device

Table 4‑65 SD1Z Connector

Name	Use	External Device Connection
CNPWM	PWM signal and error signal	CNPWM7 or CNPWM8 of 6-axis servo drive (BD552 or BD553)
CNM	Motor drive output, Frame Ground	AMC1 or AMC2
CNFG	Motor frame ground	AMC1 or AMC2
CNPN	Drive DC power input	CNPN2 of 6-axis servo drive (BD561 or BD563)
CNPNC	Drive DC power extension	Extended electrolytic condenser module

4.3.5.5. SD1Z(Servo gun drive unit; Option)​

4.3.5.5. SD1Z(Servo gun drive unit; Option)