R22HSNA-R1-NS-NV-04

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R Series servomotor manufactured by Pacific Scientific. This servomotor features a Shaft and mounting type of Factory Assigned along with a Rare earth Magnet type.

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Product Description:

The R22HSNA-R1-NS-NV-04 is manufactured by Pacific Scientific. This server motor features rare earth magnets that help to provide the motor with top quality torque to inertia ratio. The motor is designed in a small compact housing making it useful for many applications where installation space is a prime commodity. The motor is also designed for applications where there is a need for a high dynamic response.

The mounting type and shaft on this servo motor are factory assigned, as well as the sequence number. It does feature a transmitter type along with a Frameless resolver and a primary feedback size of 15 with no secondary feedback.

The R22HSNA-R1-NS-NV-04 is a 4 pole synchronous servo motor. The rare earth magnets used in this motor are samarium cobalt permanent magnets. These magnets are responsible for the motors ability to provide maximum torque to inertia ratio without the demagnetization found in other motors that do not use this type of technology.

This Pacific Scientific motor uses a maximum of 320V dc bus for its operation. It also uses 18-inch leads with MS type connectors and features an anti-cog stator design. The motor has a rated speed of up to 11,000 RPM and will provide a torque range of 0.3 to 1.1 Nm for continuous torque.

The motor has several built-in protection features including a thermistor to protect against overheating. The motor also features insulation of Class H specifications which help to allow the motor to safely run even in conditions where the environment maybe a little less than ideal. So the unit will withstand a bit of heat during operation and continue to operate safely and reliably. The unit is designed to offer longer bearing life as it utilizes “O” rings that help to keep the bearings from rotating and thus protecting their lifespan.

Factory preassigned
NA
Magnet type
Rare earth
Motor Series
R22
Motor Terminations
MS connectors
Primary feedback
Frameless resolver, transmitter type, size 15
Secondary feedback
No secondary
Sequence number
Factory assigned
Shaft and mounting
Factory Assigned
Shaft sealing
No shaft seal
Winding
H
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  • R22HSNAR1NSNV04
Symptom / fault (drive or observation) Likely cause Corrective action
Motor-case gets too hot to touch or drive trips “Motor OverTemp” (PTC > 6.2 kΩ) Continuous load or ambient above spec; blower obstructed Log duty-cycle vs. rated torque, clear vents, replace or orient fan, allow cool-down and re-enable
Drive over-temperature before load is reached Mis-aligned or noisy resolver makes drive “hunt”, generating excess current Re-align resolver, tighten cable shield clamp, redo phasing test, then retune the current loop
Frequent “Encoder/Resolver Fault F8022” Damaged feedback cable, oil ingress, cracked glass disc Inspect/clean connectors, megger cable, replace feedback device if amplitude < 1 Vpp 
Position overshoot / drift Loose coupling or wrong resolver offset Re-torque coupler screws, reload original commutation data, run automatic offset calibration 
Drive trips “Max-speed F230” at high RPM Commanded speed above resolver limit or gearing mis-entered Verify gear ratio, lower speed command or fit higher-line-count encoder
“Over-voltage F8025” during decel Braking resistor open/undersized, ramp too steep Ohm-check resistor, reduce decel (S-0-0044) or add larger bleeder 
“Over-current F8060” instantly on enable Phase-to-phase short or locked rotor Megger windings & cable, free mechanics, reduce peak-torque limit, retest 
Intermittent running / drive resets 24 V control rail sag or loose power connector Measure rail (must stay 21–30 V DC), tighten connectors, up-size PSU 
Excessive vibration / mechanical noise Worn bearings or rotor unbalance Listen for rumble, check axial/radial play, replace bearings, balance rotor
Motor idle current high → heats while stopped Stator/rotor contamination causing cogging or demag Clean stator slots, demagnetise rotor (factory) or replace motor if cogging persists 
Model Frame Ø × length Continuous stall TCS Peak TPK Rotor inertia Mass Notable difference
R22HSNA-R1-NS-NV-04  2″ × 7.38″ 0.54 Nm 5.6 Nm 0.011 kg m² ×10-3 0.95 kg Rare-earth magnets, low-inertia
R22GENA-R1-NS-NV-01  2″ × 7.38″ 0.54 Nm same 0.011 kg m² ×10-3 0.95 kg Lower KT/KE for higher–speed apps 
R21GENA-R1-NS-NV-00 2″ × 6.38″ 0.32 Nm 2.8 Nm 0.007 kg m² ×10-3 0.68 kg Shorter stack; ideal for very light loads
R23HSNA-R1-NS-NV-02 2″ × 8.38″ 0.86 Nm 8.5 Nm 0.015 kg m² ×10-3 1.30 kg 60 % more continuous torque in same 2″ frame
R24HSNA-R1-NS-NV-03 2″ × 9.38″ 1.04 Nm 11.3 Nm 0.018 kg m² ×10-3 1.50 kg Highest torque in R20 family
R32GENA-R1-NS-NV-01 3.25″ sq × 7.09″ 1.6 Nm 7.4 Nm 0.051 kg m² ×10-3 2.5 kg Next-frame R30 series for extra torque & stiffer mount
Drive LED blink-count Fault description
2 blinks – Motor Over-Temp Winding sensor (PTC) indicates temperature above limit
3 blinks – Drive Over/Under-Temp Heatsink < 0 °C or > 100 °C
4 blinks – Drive I·t Too High Output-current × time product exceeded
5 blinks – Motor I²·t Too High Motor RMS current above rating too long
7 blinks – Bus Over-Voltage DC bus exceeds upper threshold
8 blinks – Bus Under-Voltage DC bus < 20 V (DC version) or sag on AC unit
9 blinks – Motor phase short Line-to-line, line-to-ground, or phase-fault current spike
10 blinks – Output Over-Current Instantaneous peak current > drive limit
11 blinks – Hall Fault Hall-sensor state sequence illegal (for ComCoder feedback)
19 blinks – Position Error Too Large Following error beyond tolerance

Frequently Asked Questions about R22HSNA-R1-NS-NV-04:

Q: How often do I need to service the R22HSNA-R1-NS-NV-04 every year?

A: The R22HSNA-R1-NS-NV-04 is built for a long, maintenance free sevice life. Once installed properly, you probably won't have to look at the motor again. It will operate at a top level for more than five years without breaking down.

Q: Is the R22HSNA-R1-NS-NV-04 protected against overtemperature?

A: Yes. The R22HSNA-R1-NS-NV-04 features an overtemperature protection termistor. The motor sould also be instaled in position that exposes it to cool air.

Q: Is the R22HSNA-R1-NS-NV-04 water proof?

A: The housing of the R22HSNA-R1-NS-NV-04 is designed according to the IP65 protection. This housing protects the motor against dust and water splash. The motor is however not suitable for underwater operation.

Q: What type of applications is the R22HSNA-R1-NS-NV-04 designed for?

A: The R22HSNA-R1-NS-NV-04 is designed for industrial applications that require a high torque over a wide speed range. The motor also features an anti-cog magnet design fr smooth low speed performance.

Q: Is the R22HSNA-R1-NS-NV-04 environmentally friendly?

A: The unique design of the R22HSNA-R1-NS-NV-04 makes it an environmentally friendly device. The motor does not generate a lot of noise during operation, also under normal operating conditions, the motor does not release any dangerous chemical substance.


Internal Product Review

  • ‘‘The R22HSNA-R1-NS-NV-04 by Pacific Scientific has performed beyond initial expectation. A a rated speed of up to 11,000 RPM certainly exceeds other models with this form-factor in mind.’’

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