LOVATO ELECTRIC DCRG8 Manual Operativo página 13

P02.19 – If set to ON, when the system is giving active power to the supplier (generation = negative active power and power factor), all steps are disconnected.
P02.20 – Rated current of the system. Value used for the full scale of the bar graphs and for setting the current thresholds, expressed as a percentage.
If set to Aut, then the value of P02.01 (CT primary) is used.
P02.21 – Rated voltage of the system. Value used for the full scale of the bar graphs and setting the voltage thresholds, expressed as a percentage.
If set to Aut, then the value of P02.08 (rated voltage of capacitors) is used.
P02.22 – Type of system voltage. Depending on the setting of this parameter, the appropriate wiring diagrams must be used. See at the end of the manual.
P02.23 ... P02.27 – Data of VTs eventually used in the wiring diagrams.
P02.28 – Selection of step connection mode
Standard = Normal operation with free selection of the steps.
Linear = The steps are connected in progression from left towards right only, following the step number and according to the LIFO (Last In First Out)
logic. When the system steps are of different ratings, the controller will not connect a step if the set-point value would be exceeded.
Fast = Fast switching for use with static/thyristor modules and parameter P03.n.02 set to Static.
P02.29 – After having closed one step output, the measurement acquisition is suspended for the number of periods (cycles) specified by this parameter, in
order to allow the external static module to connect the capacitors. This function avoids regulation oscillations. Set this value according to the
technical characteristics (closing time) declared by the manufacturer of the static module.
P02.30 – Enables the setting of the setpoint as Tangent of displacement phase angle (Tanphi) instead of Cosine (Cosphi). Used as a reference by the energy
providers of some European countries.
P02.31 – Value of the Tanphi setpoint. Negative Tanphi values correspond to capacitive Cosphi.
M03 - STEPS (STPn, n=1...32)
P03.n.01 Step weight
P03.n.02 Step insertion type
Note: This menu is divided into 32 sections that refer to 32 possible logic steps STP1...STP32 which can be managed by the DCRG8.
P03.n.01 – Weight of step n, referred to the value of the smallest step. The number that indicates the multiple of the power of the current step with reference to
the smallest set at P02.07. If set to OFF, the step is disabled and will not be used.
P03.n.02 – Type of device designated for step insertion. Contactor = Electromechanical switching by contactor. For this step, the reconnection time is used.
Static = Electronic switching by thyristor module. For this step, the reconnection time is not considered. Used for Fast power factor correction.
M04 –MASTER OUTPUTS (OUTn, n=1...16)
P04.n.01 Output OUTn function
P04.n.02 Channel number x
P04.n.03 Normal/Reverse output
Note: This menu is divided into 16 sections that refer to 16 possible digital outputs OUT01...OUT16, which can be managed by the master DCRG8;
OUT01..OUT08 on the base device and OUT09...OUT16 on eventual installed expansion modules.
P04.n.01 – Choice of the function for the selected output (see programmable outputs functions table).
P04.n.02 – Channel number associated with the function programmed in the previous parameter. Example: If the output function is set to Alarm Axx and you
want this output to be energised for alarm A31, then set the value to 31.
P04.n.03 – Sets the state of the output when P04.n.01 is inactive (OFF): NOR = Output de-energised; REV = Output energised.
M05 – MASTER / SLAVE
P05.01 Master-Slave function
P05.02 Device role
P05.03 Slave 1 enable
P05.04 Slave 2 enable
P05.05 Slave 3 enable
P05.06 Slave 4 enable
P05.07 Slave 5 enable
P05.08 Slave 6 enable
P05.09 Slave 7 enable
P05.10 Slave 8 enable
P05.01 – Defines whether the system is used in master-slave configuration or not. With OFF, the system works with a single controller (normal configuration).
If COM1 or COM2 is set, working in master-slave mode, the setting indicates which channel is used to communicate between controllers.
P05.02 – Defines whether the current device is a master or a slave and in this case, which is its number.
P05.03... P05.10 – Enables the operation of individual slaves.
UoM Default Range
OFF OFF/ 1 – 99
Contactor Contactor
Static
UoM Default Range
n=1...8
Step x Output function table
n=9...16
OFF
n=1...8 OFF/1 – 99
x=1...8
n=9...16
x=1
NOR NOR - REV
UoM Default Range
OFF
COM1
COM2
Master Master
Slave01
Slave02
Slave03
Slave08
OFF OFF-ON
OFF OFF-ON
OFF OFF-ON
OFF OFF-ON
OFF OFF-ON
OFF OFF-ON
OFF OFF-ON
OFF OFF-ON
I
See
OFF
...
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