HMS01.1N-W0036-A-07-NNNN

HMS Axis Inverters

Rated 4.2 stars (10 total reviews)

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The HMS01.1N-W0036-A-07-NNNN single axis inverter from Bosch Rexroth Indramat is part of the HMS Axis Inverters series. It features internal air cooling with an integrated blower, IP20 protection class, a nominal DC bus voltage of 700 V and a rated maximum current of 36 A. The inverter supports a 0 to 1000 Hz output frequency range and 3 x 0 to 500 V AC output voltage, and weighs 5.27 kg. It is compatible with Bosch Rexroth drive controllers.

Technical Specifications

Cooling Type
Internal Air with Integrated Blower

Design Version
1

Internal Power Supply
Not Equipped

Line Version
1

Nominal DC Bus Voltage
DC 700 V

Product Type
HMS

Protection Class
IP20

Rated Maximum Current
36 A

Frequently Asked Questions

What are potential thermal constraints when running the HMS01.1N-W0036-A-07-NNNN continuously at its rated current?

The integrated blower must supply sufficient airflow and the ambient temperature must be kept low (near typical industrial limits, e.g. ≤ 40-50 °C) or thermal derating will occur. Heat dissipation of ~210 W continuous means that in crowded or poorly ventilated enclosures the inverter may reach its internal temperature limits, reducing lifespan or requiring forced cooling / heat sinks.

What are the installation considerations given the IP20 protection class for this inverter?

IP20 means no protection against water ingress, and only protects from fingers or objects > 12 mm; the unit must be mounted inside an enclosure that protects it from dust, moisture or spray. Also wiring must be sealed or routed such that liquid or contaminants do not accumulate, and ambient humidity/contaminant level should be low (Pollution Degree 2 as specified).

What mechanical mounting and clearance are needed, especially considering the inverter’s size and airflow?

With dimensions of 440 × 262 × 50 mm and blower cooling, it must have adequate clearance above, below, and at least at air inlets/outlets to avoid recirculating hot air. Also mounting pins/surfaces should be conductive and stable; use torqued screw connections (0.5-0.6 Nm) to ensure good electrical contact and safe operation.

What effects do differing rated input and control voltages have on control wiring and safety logic?

External control signals operate at 24 V DC, so isolation and protection (optocouplers or isolators) must be designed for low-voltage logic; while input supply (254-750 V DC) demands high-voltage rated insulation on power circuitry. Separation of control wiring from power paths is necessary to avoid cross-interference and ensure staff safety during maintenance.

How does 700 VDC nominal DC bus voltage help the HMS axis inverter?

A 700 VDC nominal DC bus voltage improves the HMS axis inverter's efficiency by reducing current for the same power output, thereby minimizing conduction losses. It also enhances dynamic performance and supports higher-speed motor operation.

Common Misspellings

Internal Product Review

The HMS01.1N-W0020-A-07-NNNN by Bosch Rexroth is an HMS Axis Inverter with a nominal DC bus voltage of 700 V and a rated current of 36 A. It supports an output frequency range up to 1,000 Hz and is suitable for industries like automation and robotics. This controller is compatible with Bosch Rexroth drive controllers, ensuring efficient and reliable operation.