Schneider Electric 4000 manual Mechanical Relay Outputs

63230-300-212		Chapter 5—Input/Output Capabilities
April 2001		Mechanical Relay Outputs
MECHANICAL RELAY OUTPUTS	The optional Input/Output Card IOC44 provides three Form-C, 10 A
	mechanical relays that can be used to open or close circuit breakers,
	annunciate alarms, and more.
	The mechanical output relays of the circuit monitor can be configured to
	operate in one of 11 operating modes:
	•	Normal
	•	Latched (electrically held)
	•	Timed
	• End of power demand interval
	•	Absolute kWh pulse
	•	Absolute kVARh pulse
	•	kVAh pulse
	•	kWh in pulse
	•	kVARh in pulse
	•	kWh out pulse
	•	kVARh out pulse

See the previous section “Relay Output Operating Modes” on page 75 for a description of the modes.

The last seven modes in the list above are for pulse initiator applications. All Series 4000 Circuit Monitors are equipped with one solid-state KYZ pulse output rated at 96 mA and an additional KYZ pulse output is available on the IOC44 card. The solid-state KYZ output provides the long life—billions of operations—required for pulse initiator applications. The mechanical relay outputs have limited lives: 10 million operations under no load; 100,000 under load. For maximum life, use the solid-state KYZ pulse output for pulse initiation, except when a rating higher than 96 mA is required. See“Solid- State KYZ Pulse Output” on page 78 in this chapter for a description of the solid-state KYZ pulse output.

To set up a mechanical relay output, from the Main Menu, select Setup > I/O. Select input option IOC44. For detailed instructions, see “Setting Up I/Os” on page 23 in Chapter 3—Operation. Then using SMS, you must define the following values for each mechanical relay output:

•Name—A 16-character label used to identify the digital output.

•Mode—Select one of the operating modes listed above.

•Pulse Weight—You must set the pulse weight, the multiplier of the unit being measured, if you select any of the pulse modes (last 7 listed above).

•Timer—You must set the timer if you select the timed mode or end of power demand interval mode (in seconds).

•Control—You must set the relay to be controlled either remotely or internally (from the circuit monitor) if you select the normal, latched, or timed mode.

For instructions on setting up digital I/Os in SMS, see the SMS online help on device set up of the circuit monitor.

NOTE: The IOC44 can be set up using the display or SMS. The IOX must be identified using the display, then set up using the display or SMS.

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