Icar RPC 8BGA Complete Manual

Also see for RPC 8BGA: Quick guide Instruction manual Operating manual Resetting guide

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Icar RPC 8BGA Complete Manual Manual pdf 34 page image

ICAR PQS rev8 may1834 / 86COD DESCRIPTION BASE EXPINPx Digital Inputs - 1…8OUTx Digital Outputs 1…8 9…16COMx Communication ports - 1…2AINx Analog Inputs - 1…4AOUx Analog Outputs - 1…4In a similar way, there are some internal bit-variables (markers) that can be associated to the outputs or combined between them.For instance, it is possible to apply some limit thresholds to the measurements done by the system (voltage, current, power, etc.).In this case, an internal variable named LIMx will be activated when the measurements will go outside the limits defined by theuser through the dedicated setting menu.Furthermore, there are up to 8 counters (CNT1..CNT8) that can count pulses coming from an external source (through a digitalinput INPx) or the number of times that a certain condition as been verified. For instance, defining a limit threshold LIMx as thecount source, it will be possible to count how many times one measurement has exceeded a certain limit.The following table groups all the I/O and the internal variables managed by the 8BGA power factor controller.CODE DESCRIPTION RANGELIMx Limit thresholds 1…16REMx Remote-controlled variables 1…16UAx User alarms 1…8PULx Energy consumption pulses 1…3CNTx Programmable counters 1…813 LIMIT THRESHOLDS (LIMX)The LIMn thresholds are internal variables whose status depends on the out-of-limits of one particular measurement set by theuser (e.g. total active power higher than 25kW) among all those measured.To make the setting of the thresholds easier, since the limits can span in a very wide range, each of them can be set using a basenumber and a multiplier (for example: 25 x 1k = 25000).For each LIM, there are two thresholds (upper and lower). The upper threshold must always be set to a value higher than the lowerthreshold.The meaning of the thresholds depends on the following functions:13.1. Min function: the lower threshold defines the trip point, while the upper threshold is for the resetting. The LIM trips when theselected measurement is less than the Lower threshold for the programmed delay. When the measured value becomes higherthan the upper setpoint, after the set delay, the LIM status is reset.13.2. Max function: the upper threshold defines the trip point, while the lower threshold is for the resetting. The LIM trips whenthe selected measurement is more than upper threshold for the programmed delay. When the measured value decreases belowthe lower setpoint, after the delay, the LIM status is reset.13.3. Max+Min function: both thresholds are for tripping. When the measured value is less than lower or more than uppersetpoints, then, after the respective delays, the LIM will trip. When the measured value returns within the limits, the LIM status willbe immediately reset.Trip denotes either activation or de-activation of the LIM variable, depending on ‘Normal status’ setting.If the LIMn latch is enabled, the reset can be done only manually using the dedicated command in the commands menu.See setup menu M20.14 REMOTE-CONTROLLED VARIABLES (REMX)The 8BGA power factor controller can manage up to 16 remote-controlled variables (REM1…REM16).Those are variables which status can be modified by the user through the communication protocol and that can be used incombination with outputs.Those are variables which status can be modified by the user through the communication protocol and that can be used incombination with outputs.Example: using a remote variable (REMx) as a source for an output (OUTx), it will be possible to freely energise or de-energiseone relay through the supervision software. This allows to use the power factor relay exit relays to drive lighting or similar loads.15 USER ALARMS (UAX)The user has the possibility to define a maximum of 8 programmable alarms (UA1…UA8).Type of measureFunctionTipo di misuraUpper thresholdThreshold delayLower thresholdStatus of the limitvariable