Chapter 5Input/Output Capabilities 63230-300-212
Relay Output Operating Modes Ap ril2001
©200 1 Schneider Electric All Rights Reserved
76
Timed
Remotely Controlled:
Energizethe relay by issuing a
command froma remote PC or programmable controller.The relay
remains energizeduntil the timer expires, or until the circuit monitor
loses controlpower. If a new command to energizethe relay is issued
beforethe timer expires, the timer restarts. If thec ircuitmonitor loses
control power,the relay will be re-energized when controlpower is
restored and thetimer will reset to zero and begin timing again.
Circuit Monitor Controlled:
When an alarm conditionassigned to the
relayoccurs, the relay is energized. The relay remainsenergized for
the durationof the timer. When the timer expires, the relay willde-
energizeand remain de-energized. If the relay is on and the circuit
monitor losescontrol power, the relay will be re-energizedwhen
control poweris restored and the timer will reset to zero and begin
timing again.
End Of PowerDemand Interval
This mode assignsthe 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 demandinterval. It turns off when the
timerexpires. Becauseof its long life, thismode should be used with solid
state relayoutputs.
Absolute kWh Pulse
This mode assignsthe relay to operate as a pulse initiator with a
user-definednumber of kWh per pulse. In this mode, both forward and
reversereal energy are treated as additive (as in a tie circuit breaker).
Absolute kVARhPulse
This mode assignsthe relay to operate as a pulse initiator with a
user-definednumber of kVARh per pulse.In this mode, both forward and
reversereactive energyare treated as additive (as in a tie circuit breaker).
kVAhPulse
This mode assignsthe relay to operate as a pulse initiator with a
user-definednumber of kVAh per pulse.Since kVA has no sign, the kVAh
pulse has onlyone m ode.
kWhInPulse
This mode assignsthe relay to operate as a pulse initiator with a
user-definednumber of kWh per pulse.In this mode, only the kWh flowing
into the loadis considered.
kVARh In Pulse
This mode assignsthe relay to operate as a pulse initiator with a
user-definednumber of kVARh per pulse. In this mode, only the kVARh
flowinginto the load is considered.
kWh Out Pulse
This mode assignsthe relay to operate as a pulse initiator with a
user-definednumber of kWh per pulse.In this mode, only the kWh flowing
out of the loadi s considered.
kVARhOut Pulse
This mode assignsthe relay to operate as a pulse initiator with a
user-definednumber of kVARh per pulse. In this mode, only the kVARh
flowingout of the load is considered.