PMB31B-10216-00
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The PMB31B-10216-00 is a brushless servomotor manufactured by Pacific Scientific. Part of the PMB Brushless Servomotors series, it features a NEMA Size 34 frame and offers a peak torque of 4.7 Nm. This motor has a rated speed of 2,700 RPM with an IP40 rating. It employs neodymium-iron-boron magnets.
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Product Description:
Pacific Scientific built PMB31B-10216-00 brushless servo drive with flying leads and MS connectors in order to provide robust military-style mating and simplifies field wiring. The motor size is NEMA Size 34 and it defines the standard flange and bolt pattern for mechanical mounting. The IP rating is IP40 that indicates protection against solid objects greater than one millimeter. This level of protection requires enclosure or cabinet installation for particulate and splash control.
Digital encoder with commutation as sensor supplies both commutation signals and position feedback in one device. Further, it combines feedback option with direct electronic commutation and reduces the need for separate hall sensors. “1” shows the stack length multiple which is a standard stator length option for this variant. Featuring an encoder resolution of 4096 ppr, it delivers high pulse density per revolution for position feedback. The nominal stall current at 240 VAC is 2.7 ARMS, setting the expected maximum steady current under stall conditions. Typical rated speed (max) is 2,700 RPM which indicates the nominal operating speed point for rated torque. The continuous stall torque for this module is 2.1 Nm which states sustained torque at stall ratings. Peak torque of 4.7 Nm represents the short-duration torque capability. 2.7 kg specifies the product’s mass for adjusting and mounting calculations.
The model PMB31B-10216-00 has a shaft diameter of 9.52 mm which sets the shaft coupling and keying dimensions. This shaft size determines compatible coupling selections and torque transmission fit. Ingress protection of IP40 indicates protection against solid objects greater than one millimeter. It further requires enclosure or cabinet installation for particulate and splash control. The component employs a magnet type of neodymium-iron-boron, providing high magnetic energy density. This material raises torque density and supports compact motor design.
Frequently Asked Questions about PMB31B-10216-00:
Q: What encoder resolution applies to PMB31B-10216-00 brushless motor?
A: This supplies a 4096 ppr encoder which increases feedback pulse density and allows finer position increments that reduce steady-state error.
Q: What sensor type is fitted to PMB31B-10216-00 and how does that support commutation?
A: The motor includes a digital encoder with commutation which combines position feedback and electronic commutation signals.
Q: What does the stack length multiple of PMB31B-10216-00 indicate and why is it relevant for system design?
A: A stack length multiple of 1 for PMB31B-10216-00 indicates the standard stator axial length which determines motor torque per frame and overall envelope dimensions that assist in specifying machine clearance and spare part selection.
Q: What nominal stall current specification applies to PMB31B-10216-00 and how should drives be configured?
A: The unit lists a nominal stall current of 2.7 ARMS which sets the RMS phase current expectation under stall and guides drive continuous current settings.
Q: How does the typical rated speed of PMB31B-10216-00 affect application selection?
A: The typical rated speed of 2,700 RPM for the model defines the nominal operating speed for rated torque and informs gearbox ratios when matching motor speed to application requirements.