Lenze S94P01B2 Manual de usuario descargar pdf (Pagina 20)

S94P01B2

Interface

The PositionServo 940 buffers encoder feedback from P4 to P3. Encoder Feedback

channel A on P4, for example, is Buffered Encoder Output channel A on P3. The Hall

sensors from the motor must be wired to the 15-pin connector (P4).

STOP!

Use only +5 VDC encoders. Do not connect any other type of encoder

to the PositionServo 940 reference voltage terminals. When using a

front-end controller, it is critical that the +5 VDC supply on the front-

end controller NOT be connected to the PositionServo 940’s +5 VDC

supply, as this will result in damage to the PositionServo 940.

NOTE

• The PositionServo 940 encoder inputs are designed to accept

differentially driven hall signals. Single-ended or open-collector

type hall signals are also acceptable by connecting “HA+”, “HB+”,

“HC+” and leaving “HA-,HB-,HC-” inputs unconnected. You do not

need to supply pull-up resistors for open-collector hall sensors.

The necessary pull-up circuits are already provided.

• Encoder connections (A, B, and Z) must be full differential.

PositionServo doesn’t support single-ended or open-collector type

outputs from the encoder.

• An encoder resolution of 2000 PPR (pre-quadrature) or higher is

recommended.

Using P4 as second encoder input for dual-loop operation.

P4 can be used as a second loop encoder input in situations where the motor is

equipped with a resolver as the primary feedback. If such a motor is used, the drive

must have a resolver feedback option module installed. A second encoder can then be

connected to the A and B lines of the P4 connector for dual loop operation. Refer to

“Dual-loop Feedback Operation” for details (Section 6.4).

P4 PIN ASSIGNMENTS (ENCODER)

Pin Name Function

1 EA+ Encoder Channel A+ Input

(1)

2 EA- Encoder Channel A- Input

(1)

3 EB+ Encoder Channel B+ Input

(1)

4 EB- Encoder Channel B- Input

(1)

5 EZ+ Encoder Channel Z+ Input

(1)

6 EZ- Encoder Channel Z- Input

(1)

7 GND Drive Logic Common/Encoder Ground

8 SHLD Shield

9 PWR Encoder supply (+5VDC)

10 HA- Hall Sensor A- Input

11 HA+ Hall Sensor A+ Input

12 HB+ Hall Sensor B+ Input

13 HC+ Hall Sensor C+ Input

14 HB- Hall Sensor B- Input

15 HC- Hall Sensor C- Input

(1)

See Note 1, Section 4.1.7 - Connector and Wiring Notes

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 75 76

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Lenze S94P01B2 Manual de usuario Pagina 20

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