Parker Products OEM650X, OEM350X manual Sizing Power Supply, Connection, Calculations, Motor Type

OEM650/OEM650X • INSTALLATION

Sizing Power Supply

Table 2-14 contains power ratings to help system designers size a power supply. Combinations of motors and current levels other than those shown may result in power values that are not recommended.

Connection

OEM57 motors may be configured in parallel or series. OEM83 motors must be wired in parallel. Refer to the OEM650 Quick Test.

Motor Size	Motor	Motor Heat +	Drive	Supply
(@75VDC)	Current	Avg. Shaft Power	Heat	Total**
OEM57-40-MOS2.65A		56 Watts	9 Watts	65 Watts
OEM57-40-MOP5.3A		56 Watts	19 Watts	75 Watts
OEM57-51-MOS3.3A		75 Watts	11 Watts	86 Watts
OEM57-51-MOP6.6A		75 Watts	25 Watts	100 Watts
OEM57-83-MOS3.8A		86 Watts	13 Watts	99 Watts
OEM57-83-MOP7.5A		86 Watts	31 Watts	117 Watts
OEM83-62-MO*4.4A		113 Watts	15 Watts	128 Watts
OEM83-93-MO*	5.6A	133 Watts	20 Watts	153 Watts
OEM83-135-MO*	6.9A	155 Watts	27 Watts	182 Watts

S: Series Configuration P: Parallel Configuration

* 34 size motors are internal wired in Parallel ** User must supply this level of wattage

Table 2-14. Power Sizing

Use the following equation to determine drive heat.

Drive Heat (Watts) = (0.31) (I	2) + (1.13 I	M	) + 3	I = Motor Current
	M			M

Calculations

❏To convert watts to horsepower, divide by 746

❏To convert watts to BTU/hour, multiply by 3.413

❏To convert watts to BTU/minute, multiply by 0.0569

Motor Type

OEM650/OEM650X motors are custom-made for use with these drives and drive/indexers. They are not available as a standard model from any other manufacturer. These motors are designed for low loss at rest and at high speed. Motors in the same frame size from other manufacturers may sustain considerably higher iron losses than an OEM650/OEM650X motor. OEM motors are wound to render inductances within a range suitable for OEM Series prod- ucts. If you do not use an OEM Series motor, you should consult Compumotor's Applications Engineering Department for assistance (800-358-9070). OEM650s/OEM650Xs are designed to run 2-phase PM step motors only. Do not use variable reluctance or DC motors.

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