Question about NLi120 integrated drive motor motor

Neal

Dear Sir,
I have different question about your products:

Cable Configuration
The offer lists several different cable types, some of them multiple times, even though it is initially designed for only one motor. Could you please explain why this variety is necessary? Our goal would be to keep the number of different components as low as possible to reduce costs and complexity in the setup.
In the documentation, I saw that there are combination cables that carry both the power supply and the bus line. Would this not make more sense for our application?

Furthermore, it is not entirely clear to me how the cables are to be connected: According to the 3D models, there seem to be two connections on the actuator. However, since CANopen works as a bus, two connections are already required here, and the power supply is added - have I understood this correctly?

I am particularly interested in the DA002060 cable: Is this the adapter that is required for the connection to the PC and the use of the NiLab Starter software, or does this cable fulfill other functions that could also be fulfilled by other cables?

What would be the cable that is then looped from motor to motor for the Fieldbus?

Would it be possible to get the exact pinout of the M12 connectors, especially for the power cable DA00022011?
Would it be generally possible to use both CANopen and Modbus for control later when using the DA012019 cable? That would be an interesting solution for us.

Cable Lengths
Would it be possible to limit the cable lengths to approx. 1 m? We do not need longer lines for our application. A reduction could also contribute to reducing the total costs. Or are the cables only available in the standard lengths of 3 m and 5 m?

Guidance / Mounting
A rotation of the slider is irrelevant due to a planned joint on its mount and is already restricted. Do I understand correctly that no additional external guidance is therefore necessary for this motor type?

I hope my questions are understandable. I would be very happy to receive a timely response.

Sincerely,
Neal

Admin

Dear Neal,

OK, let's start with the connections on the motor. The NLi120 motor generally has two connections: one for the 24V power supply and one for the signal, which contains the digital inputs and outputs as well as the serial MODBUS.
A third connection is available if the model is ordered with CANopen. In this case, the CANH and CANL lines are routed to this third connection. The third connection is available because it is possible to daisy-chain the CAN bus for several motors in an application.

f you want to use all functions, including the digital inputs and outputs, there are generally two connections, which become three with CANopen.
To reduce the number of cables to a minimum, there is a version with only one connector on the back of the motor. In this case, however, you have to do without some signals. You then only have the two communication buses MODBUS and CANopen as well as the power supply via a single cable: https://www.nilab.at/dokuwiki/doku.php?id=integrated_drive_motors:connection_system#nli120q_x_linear_motors_with_canopen_modbus_rtu_and_single_rear_connector

Yes, the cable DA002060 is only for programming and interacting with the motor via PC via serial MODBUS RTU.

For the daisy-chain connection, the DA122011-5M cable is combined with a DIN rail mounting accessory NL-DB9-MG6 in the control cabinet: https://www.nilab.at/dokuwiki/doku.php?id=integrated_drive_motors:accesories#nl-db9-mg6_-_modbus_rtu_or_canopen_bus_terminal_block_daisychain_connections. The common line CAN_H and CAN_L can be connected together using the terminal block (pin 2 and pin 7).

You can find the pinout of the power connector here: https://www.nilab.at/dokuwiki/doku.php?id=integrated_drive_motors:connection_system#m12_power_connectors_on_the_motor_side_pinout

In order to have just one cable for CanOPEN and MODBUS you have to order the version with a single connector on the back of the motor that I mentioned earlier.

The cables can also be supplied with a length of 1.5 meter.

An additional guidance is necessary if radial forces act on the rod. The rod is not a solid steel shaft, but a tube with embedded permanent magnets. Therefore, it must be guided from the outside if high bending moments occur. This also serves to avoid damaging the IGUS bearings integrated in the flanges. If your application has no radial loads and an externally guided or supported load moves axially, the anti-rotation system can be omitted.

Regards
Marco