Graco 3A2098H important safety instructions DGM Digital Outputs

Appendix B - Discrete Gateway Module (DGM) Connection Details

DGM Digital Outputs

The digital outputs function only when power is supplied to pins 27, 68, and 69 and there is a ground connection to pin 70. See Pin References, page 118, for details. The digital output is rated at 0-30 Vdc, and requires an NEC Class 2 power supply connected to pin 27 for supply bank 1, pin 69 for supply bank 2, and pin 68 for supply bank 3. The DGM provides optical isolation as shown in the following illustration.

•	Pins: 9-20, 28-39	•	Maximum continuous current output: 350 mA
•	Type: Sourcing		(sourced from customer supply)
		•	Recommended continuous current: 100 mA

Microcontroller

Discrete Gateway Customer Automation

D-Sub Pin 51 (Isolated

Logic Supply)

Isolated Logic ICs

D-Sub	Digital Output
	Supply Bank 1
Pin 27

Optical
Isolator	Digital
	Output 1-8

LOAD	Digital Output
D-Sub	Supply Bank 2
Pin 69
Digital	24VDC
Output 9-16
	LOAD
D-Sub	Digital Output
	Supply Bank 3
Pin 68
Digital
Output 17-24

LOAD

24VDC

D-Sub Pin 70

(Isolated Ground)

120 3A2098H