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Chapter 5—Input/Output Capabilities 63230-300-212
Relay Output Operating Modes April 2001
© 2001 Schneider Electric All Rights Reserved
76
• Timed
—
Remotely Controlled:
Energize the relay by issuing a
command from a remote PC or programmable controller. The relay
remains energized until the timer expires, or until the circuit monitor
loses control power. If a new command to energize the relay is issued
before the timer expires, the timer restarts. If the circuit monitor loses
control power, the relay will be re-energized when control power is
restored and the timer will reset to zero and begin timing again.
—
Circuit Monitor Controlled:
When an alarm condition assigned to the
relay occurs, the relay is energized. The relay remains energized for
the duration of the timer. When the timer expires, the relay will de-
energize and remain de-energized. If the relay is on and the circuit
monitor loses control power, the relay will be re-energized when
control power is restored and the timer will reset to zero and begin
timing again.
• End Of Power Demand Interval
This mode assigns the relay to operate as a synch pulse to another
device. The output operates in timed mode using the timer setting and
turns on at the end of a power demand interval. It turns off when the
timer expires. Because of it’s long life, this mode should be used with solid
state relay outputs.
• Absolute kWh Pulse
This mode assigns the relay to operate as a pulse initiator with a
user-defined number of kWh per pulse. In this mode, both forward and
reverse real energy are treated as additive (as in a tie circuit breaker).
• Absolute kVARh Pulse
This mode assigns the relay to operate as a pulse initiator with a
user-defined number of kVARh per pulse. In this mode, both forward and
reverse reactive energy are treated as additive (as in a tie circuit breaker).
• kVAh Pulse
This mode assigns the relay to operate as a pulse initiator with a
user-defined number of kVAh per pulse. Since kVA has no sign, the kVAh
pulse has only one mode.
• kWhInPulse
This mode assigns the relay to operate as a pulse initiator with a
user-defined number of kWh per pulse. In this mode, only the kWh flowing
into the load is considered.
• kVARh In Pulse
This mode assigns the relay to operate as a pulse initiator with a
user-defined number of kVARh per pulse. In this mode, only the kVARh
flowing into the load is considered.
• kWh Out Pulse
This mode assigns the relay to operate as a pulse initiator with a
user-defined number of kWh per pulse. In this mode, only the kWh flowing
out of the load is considered.
• kVARh Out Pulse
This mode assigns the relay to operate as a pulse initiator with a
user-defined number of kVARh per pulse. In this mode, only the kVARh
flowing out of the load is considered.