DCS800 industrial DC drives

Tough industrial applications, from rolling out steel to turning a cement kiln require equally tough products. And that’s the idea that went into our DCS800 industrial DC drives. From wire drawing to running cable cars, our DC drives give you the day-to-day reliability and performance you expect with the flexibility to meet your unique process requirements. Our Automation Builder gives you the engineering productivity to customize drive control.

The DCS800 DC drives are also a great solution to non-motor applications like magnets, battery charging and electrolysis. Our drives are backed by our global service and support network. 

Highlights

Single drives, 20 A to 5,200 A, 400 to 1200 V

Built-in three phase field exciter

IEC 61131 programmable

Built-in Modbus with a whole range of optional communication options

Built-in control for shared motion, double motor operation, field reversal and classic 12-pulse installations

Perfect for non-motor applications

Monitoring the DCS800 power section

The power part of converters size D1 - D5 is monitored by means of a galvanic isolated PTC thermistor. The PTC is installed on the heat sink in an isolated configuration. The PTC's resistance and protective effect correspond to the maximum temperature defined by the type code. The air entry temperature at the power part of converters size D6 and D7 is monitored by means of a galvanic isolated PTC thermistor. The sensor measures the power part's radiated heat and any changes in the cooling air temperature and volume. The resistance change proportional to the temperature is read and evaluated in the drive's firmware. If the temperature increases above the preset value, then first a warning and - if the temperature continues to rise - a fault message is generated. The preset value must not be set more than 5 degrees above the permissibleM ambient temperature. Since the cooling air volume can only be detected indirectly, a differential-pressure switch has been additionally installed at the unit's housing. It is always located close to the power terminals.

The differential-pressure switch compares the pressure inside the drive with the normal air pressure. If the fan is switched on, the drive's door is closed, no covers have been removed and the pressure switch signals 'cooling conditions ok' it is possible to release the converter. There is no need to set a specific differential pressure (recommendation: use the center setting). The differential pressure switch should be connected to the converter fan acknowledge signal.