beautypg.com

Appendix c. i/o connections – INFICON SQC-122 Thin Film Deposition Controller Operating Manual User Manual

Page 62

background image

Appendix

C. I/O Connections

Two 15-pin D-sub connectors, located on the rear of the SQC-122, provide Input/Output
connections.

Relay I/O Connectors

Inputs can be activated either by connecting to a switch and shorting to Ground, or they
can be driven by a TTL compatible signal.

W

ARNING

: These are not isolated inputs! The voltage level applied must be limited to

between 0 and +5 volts with respect to Ground.

W

ARNING

: Output relays are rated for 30Vrms or 30VDC, at 2A maximum. Proper

fusing, and adequate wiring insulation and separation, should be provided to assure
these limits are not exceeded.

Relay I/O 1-4

Relay I/O 5-8

Pins

Connection

Pins

Connection

1,2

Relay 1

1,2

Relay 5

3,4

Relay 2

3,4

Relay 6

5,6

Relay 3

5,6

Relay 7

7,8

Relay 4

7,8

Relay 8

9

Input 1

9

Input 5

10

Input 2

10

Input 6

11

Input 3

11

Input 7

12

Input 4

12

Input 8

13,14,15

Ground

13,14,15

Ground

Refer to Sections 3.6 for relay and input definitions.

1

8

9

15