Installing EXO Interface Port Accessories

Install EXO interface port accessories as shown in the following electrical diagrams to ensure intrinsic safety.

Table 1. Interface port parameters – Low-side switch diagram

Table 2. Input entity parameters (low side switch)
Terminal	Ui	Ii	Pi	Ci	Li
Pin 1 to pin 2 (GND)	24Vdc	3.33A	1.25W	0F	0H

Table 3. Interface port parameters – pins 3 & 4 diagram

Table 4. Output entity parameters - high output models (G7EXO-XX serial# 35880xxxxx, 35882xxxxx, 35884xxxxx)
Terminal	Uo	Io	Po	Co	Lo	Lo/Ro*
Pin 3 to pin 2 (GND)	20.76Vdc	268mA	1.39W	0.194uF	495uH	6.39uH/Ω
Pin 4 to pin 2 (GND)	4.94Vdc	108mA	97mW	100uF	3.05mH	91.68uH/Ω

Table 5. Output entity parameters - low output models (G7EXO-XX – all non-high output model serial numbers)
Terminal	Uo	Io	Po	Co	Lo	Lo/Ro*
Pin 3 to pin 2 (GND)	20.76Vdc	93mA	0.479W	0.194uF	4.1mH	18.2uH/Ω
Pin 4 to pin 2 (GND)	3.6Vdc	1.21A	3W	1000uF	24.3uH	21.9uH/Ω

* Li may be greater than Lo and the cable length restrictions due to cable inductance (Lcable), and can be ignored if both of the following conditions are met:

Lo/Ro ≥ Li/Ri

Lo/Ro ≥ Lcable/Rcable

Table 6. Interface port functional parameters diagram

Table 7. Functional output parameters for interface ports A and B - high output models (G7EXO-XX serial# 35880xxxxx, 35882xxxxx, 35884xxxxx)
Terminal	Uo	Io^†	Po^†	Co	Lo
Pin 3 to pin 2 (GND)	18Vdc	268mA	850mW	0.194uF	495uH
Pin 4 to pin 2 (GND)	3.2Vdc	32mA	25mW	100uF	23.9uH

Table 8. Functional output parameters for interface ports A and B - low output models (G7EXO-XX – all non-high output model serial numbers)
Terminal	Uo	Io^†	Po^†	Co	Lo
Pin 3 to pin 2 (GND)	18Vdc	48mA	479mW	0.194uF	4.1mH
Pin 4 to pin 2 (GND)	3.2Vdc	1000mA	3.0W	1000uF	24.2uH

^†Io and Po will be reduced if both pin 3 and pin 4 are used simultaneously.

Table 9. Functional input parameters (low side switch) for interface ports A and B
Terminal	Ui	Ii	Pi	Ci	Li
Pin 1 to pin 2 (GND)	24Vdc	3.33A	1.25W	0F	0H

Table 10. Interface port functional parameters with barriers diagram

Note:

A barrier is required for each interface port. The diode barrier and dual barrier can be individual units or a joint unit.

Table 11. Functional output parameters for interface ports A and B - high output models (G7EXO-XX serial# 35880xxxxx, 35882xxxxx, 35884xxxxx)
Terminal	Uo	Io^†	Po^†	Co	Lo
Pin 3 to pin 2 (GND)	18Vdc	268mA	850mW	0.194uF	495uH
Pin 4 to pin 2 (GND)	3.2Vdc	32mA	25mW	100uF	23.9uH

Table 12. Functional output parameters for interface ports A and B - low output models (G7EXO-XX – all non-high output model serial numbers)
Terminal	Uo	Io^†	Po^†	Co	Lo
Pin 3 to pin 2 (GND)	18Vdc	48mA	479mW	0.194uF	4.1mH
Pin 4 to pin 2 (GND)	3.2Vdc	1000mA	3.0W	1000uF	24.2uH

^†Io and Po will be reduced if both pin 3 and pin 4 are used simultaneously.

Table 13. Functional input parameters (low side switch) for interface ports A and B
Terminal	Ui	Ii	Pi	Ci	Li
Pin 1 to pin 2 (GND)	24Vdc	3.33A	1.25W	0F	0H

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Installing EXO Interface Port Accessories

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