Baldor E100 manual SSI feedback, Pin SSI function

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4.1.2 SSI feedback

The SSI (Synchronous Serial Interface) encoder interface is specifically designed for use with Baldor SSI motors, which incorporate a custom Baumer SSI encoder. Correct operation with other SSI interfaces cannot be guaranteed. The SSI encoder connections are made using the 15-pin D-type female connector X8. Twisted pair cables must be used for the complementary signal pairs e.g. Data+ and Data-. The overall cable shield (screen) must be connected to the metallic shell of the D-type connector. Connector X8 includes a ‘Sense’ pin, which is used to detect the voltage drop on long cable runs. This allows the MicroFlex e100 to increase the encoder supply voltage on pin 12 to maintain a 5V supply at the encoder (200mA max).

1 9

8 15

Pin SSI function

1Data+

2 Clock+

3 (NC)

4 Sense

5 (NC)

6 (NC)

7 (NC)

8 (NC)

9 Data-

10Clock-

11(NC)

12+5V out

13DGND

14(NC)

15(NC)

Motor		X8
		Twisted pairs
Absolute		1	Data+
		9	Data-
Encoder
	SSI Interface	2	Clock+
		10	Clock-
		12	+5V out
		13	DGND	Connect internal
		4	Sense
				shields to pin 13.
		Connect overall shield	Chassis
		to connector backshells.

Figure 18 - SSI encoder cable connections

4-6 Feedback MN1942