1070077088-105 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat 1070077088-105 is part of the DMA Servo Drive Modules series and has a module width of 100 mm. It supports air cooling, has a degree of protection rated at IP20, and a 24 V power demand of 1.35 A. The servo drive features a maximum current of 86 Arms at 4 kHz under open loop and supports analog 10 bit U/f interface options.
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Product Description:
The 1070077088-105 is a servo drive module produced by Bosch Rexroth Indramat and assigned to the DMA Servo Drive Modules series. As a drive module, it converts controlled DC-link energy into three-phase output current for synchronous or induction motors used in automated machinery. Mounted inside a common RMB/DM backplane, it forms part of a multi-axis system that uses a centralized power supply and compact installation depth. In plant control cabinets, the device supplies regulated motor current while the higher-level controller sends speed or torque setpoints through the analog 10-bit U/f interface.
The module draws 24 V logic power at 1.35 A, allowing its control electronics to remain active even when the main DC bus is de-energized. Its non-regulated DC link can reach 715 VDC, providing the energy reservoir for the IGBT inverter stage. Under a 4 kHz current controller with closed-loop limitation, it delivers 64 Arms, while the open-loop limit rises to 86 Arms. Heat generated by the IGBT bridge is limited to 380 W, and the integrated air-cooling path expels this loss directly into the cabinet aisle. The enclosure has an IP20 rating for protection against accidental contact, so the unit must be installed in an enclosure that matches the 3K3 climatic category for temperature and humidity.
No additional function board is installed in the standard unit. The regulated DC link is held at 670 VDC, helping maintain consistent motor voltage when line conditions vary. When the pulse pattern is increased to 8 kHz, the permissible phase current decreases to 63 Arms, which limits switching stress while supporting quieter operation. The module has a width of 100 mm, which helps conserve cabinet space in multi-axis layouts. Internal components tolerate shocks up to 15 g during handling and service.
Frequently Asked Questions about 1070077088-105:
Q: What interface options are available on the 1070077088-105 servo drive module?
A: The 1070077088-105 supports analog interface options with a 10-bit U/f configuration.
Q: What is the highest output current rating for the 1070077088-105 at 4 kHz?
A: This model provides a maximum output current of 86 Arms at 4 kHz (open loop).
Q: How is the 1070077088-105 servo drive module cooled?
A: The DMA Servo Drive Module 1070077088-105 is cooled using an air cooling method.
Q: What is the regulated DC link voltage for the 1070077088-105?
A: The 1070077088-105 operates with a regulated DC link voltage of 670 VDC.
Q: What level of protection does the 1070077088-105 offer against dust and debris?
A: This module is rated at degree of protection IP20, providing basic ingress protection.
