Echelon Lumewave CPD 3000 Lighting Controller - Manual (Page 21)

CPD 3000 Integration Guide 21
LowSupplyVoltage Measured voltage is nciLimits.voltageLow % below the voltage
defined by nciControlCfg.supplyVoltage
HighSupplyVoltage Measured voltage is nciLimits.voltageHigh % above the voltage
defined by nciControlCfg.supplyVoltage
RelayFailed Power measured when the load switch relay is disengaged above 6.0W.
This would occur if the relay contacts were to weld shut.
FailedStart Not supported at this time
Cycling Not supported at this time
CommMargin Set if no update to nviLampValue is received before
nciLimits.rcvHb
. It is recommended that the rcvHb parameter be
set to a value that is 50% longer that the configured update rate for
nviLampValue
by the segment controller.
RcvTmo Set if the no update to nviLampValue is received before
nciControlCfg.maxRcvTm
. This alarm typically results in the load
under control being driven to the level defined by
nciControlCfg.defaulLev.
HighTemp Set when the onboard temperature sensor exceeds 65 degrees C.
LampFailed Occurs when the power measured is below the % low value defined by
nciLimits.lampFailFault
.
LowPF Set if the power factor of the controlled load falls below nciLimits.pfLow
when the load is ON. It is normal for the power factor reported in
nvoControlData
to be in the range of .30-.40 when the load is OFF.
Alarm is only set if the load is ON.
nviLampValue -> nvoLampFb Relationship
The SNVT_switch type defines the range of control from 0-100% which maps to
control voltages between minPWM and maxPWM as determined appropriate for a
particular fixture application. A fixture used near an intersection, for example,
may have a maxPWM of 255 to generated full light output, while the same fixture
applied to a residential street may clip the light level maximum output by setting
maxPMW
to 220. The value setting is a %, not a delivered light level. The
response of a driver/ballast is implementation dependent over the range of 0-
100% level. Ideally the response of the driver over the control range is a
continuous change in light level, or change in measured power. A 0VDC signal to
the driver results in a minimum light level, and power draw for the fixture which
are not 0. It is not uncommon for power at minimum controlled level to be 25% of
full brightness power.
The nvoLampFb typically reports value of nviLampValue. The only time this is
not the case is if the LC is configured to monitor the update rate, and a receive
timeout occurs forcing the brightness to the define nciControlCfg.defaultLev.