LOVATO ELECTRIC DCRG8 Manual Operativo página 12

12
M02 - GENERAL
P02.01 CT primary
P02.02 CT secondary
P02.03 Type of plant installation
P02.04 Current reading phase
P02.05 CT polarity
P02.06 Voltage reading phase
P02.07 Smallest step power
P02.08 Capacitor rated voltage
P02.09 Rated frequency
P02.10 Reconnection time
P02.11 Sensitivity
P02.12 Disconnection sensitivity
P02.13 Setpoint cosphi 1 (standard)
P02.14 Setpoint cosphi 2
P02.15 Setpoint cosphi 3
P02.16 Setpoint cosphi generating
P02.17 Setpoint + clearance
P02.18 Setpoint - clearance
P02.19 Step disconnection when generating
P02.20 System rated current
P02.21 System rated voltage
P02.22 System voltage type
P02.23 VT usage
P02.24 VT1 primary
P02.25 VT1 secondary
P02.26 VT2 primary
P02.27 VT2 secondary
P02.28 Step insertion mode
P02.29 Static switching delay
P02.30 Tanphi setpoint enable
P02.31 Tanphi setpoint
P02.01 – The value of the primary current transformer. Example: with CT 800/5A set 800.
If set to OFF, after the power-up the device will prompt you to set the CT and allow direct access to this parameter.
P02.02 – Value of the secondary of the current transformers. Example: With CT 800/5A, set 5.
P02.04 – Defines on which and on how many phases the device reads the current signal. The wiring of current inputs must match the value set for this
parameter. Supports all possible combinations of parameter P02.06.
P02.05 – Reading the connection polarity of the CTs.
Aut = Polarity is automatically detected at power up. It can be used when working with one CT only and when the system has no generator device.
Dir = Automatic detection disabled. Direct connection.
Rev = Automatic detection disabled. Reverse wiring.
P02.06 – Defines on which and on how many phases the device reads the voltage signal.
The wiring of voltage inputs must match the setting for this parameter. Supports all possible combinations of parameter P02.04.
P02.07 – Value in kvar of the smallest step installed (equivalent to the step weight 1). Rated power of the capacitor bank provided at the rated voltage specified
in P02.08 and referred to the total of the three capacitors for three-phase applications.
P02.08 – Rated nameplate voltage of capacitors, at which the specified power of P02.07 is supplied. If the capacitors are used at a voltage different (lower) than
rated one, the resulting power is automatically recalculated by the device.
P02.09 – Working frequency of the system. Auto = Automatic selection between 50 and 60 Hz at power up. 50Hz = Fixed at 50 Hz. 60Hz = Fixed to 60 Hz.
Variable = Measured continuously and adjusted.
P02.10 – Minimum time that must elapse between the disconnection of one step and the subsequent reconnection both in MAN and AUT. During this time, the
number of the steps on the main page is shown in light grey.
P02.11 – Connection sensitivity. This parameter sets the speed of reaction of the controller.
With low values, regulation is fast (more accurate around the setpoint but with more step switchings). With high values instead, there are slower
regulation reactions with fewer switchings of the steps. The delay time of the reaction is inversely proportional to the request of steps to reach the
setpoint: waiting time = (sensitivity / number of steps required).
Example: Setting the sensitivity to 60s, if you require the connection of one step of weight 1, expected time is 60s (60/1 = 60). If instead, a total of 4
steps is needed, expected time is 15s (60/4 = 15).
P02.12 – Disconnection sensitivity. Same as the previous parameter but related to disconnection. If set to OFF, the disconnection has the same reaction time as
connection set with the previous parameter.
P02.13 – Setpoint (target value) of the power factor (cosphi). Value used for standard applications.
P02.14 – P02.15 – Alternative setpoints selectable with combinations of digital inputs programmed with the appropriate function.
P02.16 – Setpoint used when the system is generating active power to the supplier (with negative active power / power factor ).
P02.17 – P02.18 – Tolerance for the setpoint. When the cosphi is within the range delimited by these parameters, in AUT mode the device does not connect /
disconnect steps even if the delta-kvar is greater than the smallest step.
Note: + means "tends to inductive", - means "tends to capacitive".
UoM Default
A OFF OFF/1-30000
A 5
Three-ph Three-phase
Single phase
L3
L1 L2 L3
Aut Aut - Dir - Rev
L1-L2
L1-L2-L3
L1-L2-L3-N
kvar 1.00 0.10 – 10000
V 400 50 – 50000
Hz Aut Aut - 50Hz -
60Hz - Variable
s 60 1-30000
s 60 1-1000
s OFF OFF / 1 – 600
0.95 IND 0.50 IND – 0.50 CAP
0.95 IND 0.50 IND – 0.50 CAP
0.95 IND 0.50 IND – 0.50 CAP
0.95 IND 0.50 IND – 0.50 CAP
0.00 0 – 0.10
0.00 0 – 0.10
OFF OFF - ON
A Aut Aut / 1 – 30000
V Aut Aut / 100 – 60000
LV LV - LV / MV - MV
OFF OFF - ON
V 100 50-50000
V 100 50-500
V 100 50-50000
V 100 50-500
Standard Standard
cycles 3
OFF OFF - ON
0 -1.732 to +1.732
Range
1 / 5
G
L1 B
L2
L3
L1-L2
L2-L3
L3-L1
L1-N
L2-N
L3-N
Linear
Fast
1-20