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ServoStep Motor ST342 Series

	DESCRIPTION		UNITS	ST342
Power	Input		VDC	20 - 80 (max)

Environment	Operating Temperature		°F (°C)	32 to 158 (0 to 70)
	Enclosure Rating (approximate)			IP40
	Storage Temperature		°F (°C)	-4 to 185 (-20 to 85)
	Humidity (non-condensing)		%	0 to 80

Performance	Peak Torque (Tp)		oz-in (N-m)	789 (5.60)
	Continuous Torque (Tc)		oz-in (N-m)	729 (5.16)
	No Load Speed		RPM	1600
	Nominal Power		HP (kW)	0.16 (0.12)
	Servo Update		Hz	4069
	PWM Frequency		kHz	33.3
	Encoder	Type	Incremental	VDC
		Resolution	ppr (post-quad)	8000
	Memory	Volatile	kRAM	32
		Non-volatile	kRAM	28

Motor	Commutation		6-step Trapezoidal
	Torque Constant (Kt)		oz-in/Amp (N-m/Amp)	NA
	Rotor Inertia (Jm)		oz-in-s2 (10-5kg-m2)	0.0481 (34.00)
	Insulation			Class B
	Number of Poles (Np)			NA
	Winding Resistance (R)		Ohms	1.12

Input/ Output	Number ( Type)			5VDC TTL
	Input	Digital	5VDC TTL sinking
		Analog	Sinking input,10 bit
	Output	Sourcing	mA	5
		Sinking	mA	10
	Encoder/Step	Input Freq.	MHz	1

Communications	Type		RS485; Serial (ASCII)
	Speed		KBaud	2.4 to 38.4

Physical	Radial Load		lbs (kg)	15 (6.8)
	Axial Thrust Load		lbs (kg)	3 (1.4)
	Width		in (mm)	3.38 (85.9)
	Length		in (mm)	6.5 (165)
	Weight (Wt)		lbs (kg)	9.68 (4.39)
	Shaft Diameter*		in (mm)	0.5(12.7)
	Pilot Diameter*		in (mm)	2.874 (73)
	Bolt Circle Diameter		in (mm)	3.876 (98.5)

• Performance spec based on PS75V6A-OF Note: check tolerance in drawings

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