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CSH01.1C-NN-EN2-EN2-MEM-NN-S-NN-FW Bosch Rexroth Indramat

MPN: R911320674

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The Bosch Rexroth Indramat CSH01.1C-NN-EN2-EN2-MEM-NN-S-NN-FW is part of the CSH Advanced Controllers series and features two EnDat 2.1, 1 Vpp, and 5 V TTL encoder interfaces along with incremental and SSI emulation. This controller supports an analog output voltage of 5 V, digital output current up to 500 mA, and a base power consumption of 7.5 W. It allows for En2 cable lengths up to 75 m and Mem cable lengths up to 40 m.

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Product Description:

The CSH01.1C-NN-EN2-EN2-MEM-NN-S-NN-FW controller card is produced by Bosch Rexroth Indramat for use in the CSH Advanced Controllers series. It mounts inside IndraDrive power units and supplies signal processing for axis regulation, safety interlocking, and fieldbus communication. By translating sensor, encoder, and serial data into drive-ready commands, the board lets a motion system synchronize motors, close position loops, and exchange status with supervisory PLCs throughout automated assembly or material-handling cells.

During operation, the board draws a base load of 7.5 W, allowing it to be powered from the low-voltage rail without special cooling. The analog monitor channel presents an input resistance of 160 kΩ, while its reference output can source up to 5 V for potentiometer or signal-conditioning tasks. Each digital output line can deliver up to 500 mA, which is sufficient for small relays or optocouplers. A power-up sequence is moderated by an inrush current limited to 4 A with a 100 ms pulse width, which helps prevent nuisance trips in upstream protection. Two encoder ports accept EnDat 2.1, 1 Vpp, or 5 V TTL signals and can generate incremental plus SSI feedback, giving flexible position capture for legacy or modern drives.

The En2 differential channel sustains reliable transmission over 75 m of shielded sense line, with a terminating impedance of 35 Ω. It is powered internally at 5.0 V and may draw up to 350 mA when both EnDat transducers are active. The MEM emulation output supports 1 MHz bursts and 20 mA line current over 40 m of cable, providing deterministic marker data to high-speed numerical controls. Serial diagnostics are available through an RS-232 interface that negotiates speeds up to 115 kBaud. These communication paths relay motion vectors, status words, and time-stamped encoder positions to higher-level automation systems without external repeaters.

Analog Input Resistance
160 kΩ
Analog Output Voltage
5 V
Base Power
7.5 W
Digital Output Current
500 mA
En2 Cable Length
75 m (Sense)
En2 Load Resistance
35 Ω
En2 Supply Current
350 mA
En2 Supply Voltage
5.0 V
Encoder Emulation
Incremental + SSI
Encoder Interfaces
2 x EnDat 2.1 / 1 Vpp / 5 V TTL
Inrush Current
4 A
Inrush Pulse
100 ms
Mem Cable Length
40 m
Mem Output Current
20 mA
Mem Output Freq
1 MHz
Rs232 Max Rate
115 kBaud
  • CSH011CNNEN2EN2MEMNNSNNFW
  • CSH01 1C NN EN2 EN2 MEM NN S NN FW
  • csh01.1c-nn-en2-en2-mem-nn-s-nn-fw
  • CSH1.1C-NN-EN2-EN2-MEM-NN-S-NN-FW

Frequently Asked Questions about CSH01.1C-NN-EN2-EN2-MEM-NN-S-NN-FW:

Q: What is the analog output voltage of the CSH01.1C-NN-EN2-EN2-MEM-NN-S-NN-FW controller?

A: The CSH01.1C-NN-EN2-EN2-MEM-NN-S-NN-FW provides an analog output voltage of 5 V for signal transmission.

Q: What is the maximum digital output current for this controller?

A: The maximum digital output current supported is 500 mA, allowing for the control of various digital actuators.

Q: How many encoder interfaces does the CSH01.1C-NN-EN2-EN2-MEM-NN-S-NN-FW have?

A: This controller is equipped with 2 EnDat 2.1 / 1 Vpp / 5 V TTL encoder interfaces, providing versatile feedback options.

Q: What is the maximum EN2 cable length supported by this controller?

A: The maximum allowable cable length for the EN2 connection is 75 meters in sense mode.

Q: What is the maximum communication rate for the RS232 interface on the CSH01.1C-NN-EN2-EN2-MEM-NN-S-NN-FW?

A: The RS232 interface on this controller supports communication rates up to 115 kBaud.


Internal Product Review

  • ‘‘The CSH01.1C-NN-EN2-EN2-MEM-NN-S-NN-FW is a Bosch Rexroth Indramat advanced controller with dual EnDat 2.1 / 1 Vpp / 5 V TTL encoder interfaces and Incremental + SSI encoder emulation. Low base power of 7.5 W and 160 kΩ analog input resistance support efficient integration and stable signal handling. A MEM output frequency up to 1 MHz is a standout specification for high-speed feedback applications.’’

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