Home Bosch Rexroth Indramat MHD Synchronous Motors MHD071B-035-NG1-UN

MHD071B-035-NG1-UN

Name: MHD071B-035-NG1-UN
Brand: Bosch Rexroth Indramat
Price: 451 USD
Availability: InStock
Rating: 4.6 (15 reviews)

Rated 4.6 (15 total ratings)

MPN: R911272383

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The MHD071B-035-NG1-UN Magnet Motor is manufactured by Rexroth Indramat Bosch. This motor has a Winding Code of 35 and has a Digital Motor Encoder. The Driven Shaft for this motor is Plain and it is Equipped with a holding brake.

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Product Description:

The MHD071B-035-NG1-UN motor is a highly reliable and energy efficient synchronous motor. It is built for the industrial process automation in different industries such as paper processing, printing, machine tools, food processing, and other similar kinds of industrial processes. This is a type of MHD series synchronous motor, which is an industrial automation product developed by Bosch Rexroth company, headquartered in Germany.

It is an AC synchronous motor with stator windings and a permanent magnet rotor. It uses the electronic commutation for turning the windings on and off during the rotation of the motor. The speed of the MHD071B-035-NG1-UN motor is 2500 rpm. The size of the motor measures 115 mm and the measurement of the length is 8.0Nm. It is a four-pole motor that operates at the rated voltage of 349 volt AC. The rated current of this motor is 4.4 Amperes. The code NG1 in the part number shows that this motor is characterized by digital servo feedback, along with the plain shaft. The plain shaft is connected with the sealing rings. This motor also has holding brake capabilities with the holding brake toque of about 5.0 Nm.

Both the power and feedback connectors on the MHD071B-035-NG1-UN motor can be adjusted. They are adjustable within 270 degrees located on the top of the motor. This motor has natural convection with liquid cooled motor housing design. The code UN at the end of this part number denotes the above-mentioned connector adjustment and motor housing design codes. The MHD071B-035-NG1-UN motor is one designed for high reliability and consistent service in any critical type of industrial automation process. This motor is used as the main drive or servo-mechanical motor in the feedback and control systems. The MHD071B-035-NG1-UN can be shipped to any address globally with a one-year warranty period from Wake Industrial.

Specs
Revisions
Common Troubleshooting Steps
Product Comparison
Similar Ordering Codes
Common Error Codes

Connector
270° turnable

Feedback
Digital servo feedback

Holding brake
5 Nm

Housing design
For natural convection or surface cooling

Motor type
Synchronous

Product type
Servo motor

Protection rating
IP65

Rated speed
2500 RPM

Shaft
Plain

Shaft seal
Yes

MHD071B035NG1UN
MHD071B 035 NG1 UN
mhd071b-035-ng1-un
MHD71B-035-NG1-UN

Fault / drive message	What it means	Corrective action
F 219 – Motor over-temperature	PTC/NTC sensor detects the stator above its shutdown threshold	Let the motor cool; verify ambient ≤ 40 °C, clear dust, improve airflow, check fan/blower if fitted
E 2-19 – Drive over-temperature warning	Heat-sink temperature is rising toward the F-trip limit	Reduce load or duty cycle, inspect cabinet ventilation, confirm heatsink fins are clean
F 226 – DC-bus undervoltage	DC link fell below the minimum value, drive shut down to protect power electronics	Check mains fuses, look for loose supply wiring, measure incoming voltage, inspect regen supplies
E 2-25 – Over-voltage in power section	Regenerated energy or line spikes raised the DC bus above the threshold	Add/size bleeder or regen resistor, slow decel ramps, verify line filters and grounding
F 230 – Encoder signal frequency exceeded	Resolver/HSF frequency above limits—often noisy or pinched cable	Route feedback cable away from power leads, replace damaged cable, check clamp-style strain relief
F 276 – Absolute-encoder position deviation	Stored multiturn zero ≠ actual position after power-on	Re-reference axis, re-enter offset in drive, inspect battery (if used) and encoder mounting
F 277 – Current-measurement trim error	Internal current-sense hardware out of tolerance	Swap drive controller or have it factory-re-calibrated; check that rated current really flows
F 220 – Bleeder resistor over-temperature	Dynamic-braking resistor exceeded safe thermal load	Lengthen deceleration ramp, install larger/forced-air bleeder, inspect wiring to resistor bank
F 401 – Double MST (SERCOS) communication loss	Drive missed two master-sync telegrams and halted	Check fibre-optic ring, clean connectors, verify SERCOS baud rate, reset and re-sync network
Over-current (phase short)	Phase current > 1.5 × rated due to cable short or stall	Megger motor leads, examine power cable for nicks, test bearings for seizure, reduce accel

Model	Frame size	Winding code	Cont. torque (Nm)	Rated speed (RPM)	Holding brake	Feedback type	Cooling
MHD071B-035-NG1-UN	071-B	35	8	2 500	Yes (5 Nm)	Digital Servo Feedback (HSF relative)	Natural convection / surface
MHD071B-035-PG1-UN	071-B	35	8	2 500	Yes (5 Nm)	Digital SF absolute (> 4096 rev)	Natural / surface
MHD071B-035-PP1-UN	071-B	35	8	≈ 2 500	Yes (5 Nm)	Digital SF absolute	Natural / surface
MHD071B-061-PP0-UN	071-B	61	8	6 000	No	Digital SF absolute	Natural / surface
MHD071B-061-NG0-UN	071-B	61	8	6 000	No	Digital Servo Feedback (HSF)	Natural / surface
MHD093A-058-PG0-AA	093-A	58	12	3 500	Factory-assigned (yes)	Digital SF absolute (PG0)	Axial-fan (surface)

Ordering Code

Error code	What it means
F218	Amplifier heat-sink over-temperature shutdown
F219	Motor over-temperature shutdown (PTC reached ~150 °C)
F220	Bleeder (regen resistor) overload shutdown
F221	Motor-temperature surveillance circuit defective
F226	DC-bus undervoltage in power section
F230	Encoder 1 signal frequency exceeds interface limit
F234	Emergency-stop activated / +24 V removed
F277	Current-measurement trim wrong (drive-hardware fault)
F401	“Double MST” – two consecutive missing SERCOS sync telegrams
E2-25	Over-voltage in power section (warning)

Frequently Asked Questions about MHD071B-035-NG1-UN:

Q: What are MHD motor applications?

A: MHD motor applications include machine tools, packaging machines, printing industry and automation.

Q: What are advantages offered by MHD motors?

A: MHD motors offer several advantages, including high reliability, maintenance-free operation, installation in any desired position, and overload protection.

Q: What are MHD motor components?

A: MHD motor components include shaft with seal, stator with winding, bearings, encoder, rotor with permanent magnets, and optional holding brake.

Q: Which cooling methods do MHD motors support?

A: MHD motors support convection cooling, surface cooling, and liquid cooling options.

Q: What is the color of the motor housing?

A: MHD motors housings are protected by a black prime coat.