Integrating the gold trombone on a pcb, Traces – ElmoMC Gold Line Digital Servo Drives-Gold Trombone User Manual

Page 34

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Gold Trombone Installation Guide (EtherCAT and CAN)

Installation

MAN-G-TROIG-EC (Ver. 1.604)

www.elmomc.com

34

4.5. Integrating the Gold Trombone on a PCB

The Gold Trombone is designed to be mounted on a PCB, either by soldering its pins directly to
the PCB or by using suitable socket connectors. In both cases the following rules apply:

4.5.1.

Traces

1.

The size of the traces on the PCB (thickness and width) is determined by the current

carrying capacity required by the application.

The rated continuous current limit (Ic) of the Gold Trombone is the current used for

sizing the motor traces (M1, M2, M3 and PE) and power traces (VP+, VN- and PE).

For control, feedbacks and I/O conductors the actual current is very small, but

“generous” thickness and width of the conductors will contribute to better
performance and lower interference.

2.

The traces should be as short as possible to minimize EMI and to minimize the heat

generated by the conductors.

3.

The spacing between the high voltage conductors (VP+, VN-, M1, M2, M3) must be at least:

400 V Drives

800 V Drives

Surface

layer

Non-coated

2.4 mm

4.2 mm

Coated

1.0 mm

2.4 mm

Internal layer

0.5 mm

1.0 mm

4.

The spacing between the high voltage conductors (VP+, VN-, M1, M2, M3) and the logic

part of the drive must be at least:

400 V Drives

800 V Drives

Surface

layer

Non-coated

4.8 mm

8.4 mm

Coated

2.0 mm

3.8 mm

Internal layer

0.5 mm

1.0 mm

5.

The spacing between any voltage conductors and the PE part of the drive, must be at least:

400 V Drives

800 V Drives

Surface

layer

Non-coated

2.4 mm

4.2 mm

Coated

1.0 mm

1.8 mm

Internal layer

0.5 mm

1.0 mm

Complying with the rules above will help satisfy UL safety standards, MIL-STD-275 and the IPC-
D-275 standard for non-coated conductors, operating at voltages lower than 800 VDC.

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