The HMS drive controllers can be operated at mains with protection by circuit breakers that are operated by residual current and sensitive to universal current under certain conditions. The drive controllers tend to become very hot during operation and must be allowed to cool down before any work is done.

HMS drive controllers must be commissioned and switched on only after ensuring that their grounding components are connected to the grounding points of the equipment grounding conductor. The drive controllers have a leakage current of more than 3.5 mA. They are likely to encounter dangerous movements because of faulty control instances such as operator errors, defective components, software errors, improper cabling, or wiring of the connected motors. These Rexroth controllers must be disconnected from electric power using the master switch and secured against reconnection during maintenance, repair or cleaning work or long periods of non-usage. We can get your industrial automation line up and running by maintaining normal operating standards.

• HMS drive controllers comprise Category C3 products with limited availability as per IEC 61800-3 specifications. It is important to make use of appropriate lime filters in the drive system to maintain this category.
• The Rexroth drive controllers cannot be used in residential areas powered by public low-voltage networks as this can cause high-frequency interference resulting in additional radio interference suppression measures to be undertaken.
• The controllers must be installed in control cabinets with a minimum clearance distance of at least 80 mm above and below them for the air inlet and air outlet.
• The HMS series of drive controllers are characterized by two DC bus terminals and three main input terminals to support their connection.
• These drive controllers are designed to be used only with HMV DC power supply units from the manufacturer.

HMV drive controllers must be equipped with external branch circuit protection according to their maximum current and voltage values. The terminal connectors of the drive controllers should be fitted with the manufacturer’s HAS02 connection accessory or appropriate strain relief measures. The Rexroth controllers must comprise a maximum cross-section of 4mm² for their conductors when         NFD03.1 mains filters are used.

The drive controllers are intended to be operated only with their connectors plugged on, even if there are no lines connected to them. They should not have any combustible materials or materials that are insensitive to high temperatures placed over them. The analog signals of these HCS drive controllers are meant to be transmitted through shielded lines.