Power Electronics SD 500 Series User manual

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User Manual Solar Pumping SD500
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USER MANUAL
SOLAR PUMPING MPPT DYNAMIC
SD500 Series
Document APR0006

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User Manual Solar Pumping SD500
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INDEX
INTRODUCTION
1.- OPERATION
2.- DESCRIPTION OF GROUP G26
3.- OTHER PARAMETERS TO MODIFY
4.- CONECTIONS

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User Manual Solar Pumping SD500
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INTRODUCTION
This manual briefly describes the operation and screens (at LCD display) list
relevant to the application of solar pumping, in which depending on the
parameters set on the display, will be able to work in Dynamic MPPT mode.
1.- OPERATION
The operation of the Solar Drive is based on the algorithm calculation of the
maximum MPPT used in Power Electronics Solar Inverters and which has been
Implemented into the application of solar pumping.
The basic operation is based on the dynamic variation of the speed reference,
which is derived from the MPPT and is used as a set point with a PID . The
feedback is the voltage and current on the drive bus. The maximum MPPT
algorithm provides the optimum speed reference for operation of the inverter
taking into account the voltage available on the drive bus and the current
consumed by the motor .
It is essential to install the optional PLC module for this application.

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User Manual Solar Pumping SD500
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2.- DESCRIPTION OF GROUP G26
To display the G26 group on the display it will be necessary to insert the PLC
module.
SCREENS GROUP G26 SOLAR PUMPING
Screen 1 VminMPPT
Description MINIMUM VOLTAGE MPPT
Units V
Range 0 to 750
FUNCTION The minimum working voltage is set for the operation of the Solar
Drive, if the starting point of the MPPT calculation is lower, it will
not allow the inverter to start. In the same way limits the
calculation of the algorithm so that the result will never go below
this value. Although the default value is set to 540v, adjust to suit
the solar field and the motor in question.
Screen 2 T IntMPPT
Description INTERVAL EXECUTION MPPT
Units s
Range 0 to 20
FUNCTION Time interval in which the calculation algorithm is executed of the
maximum MPPT. 2s is the default.
Screen 3 Vol Incr
Description VOLTAGE INCREMENT
Units V
Range 0 to 10
FUNCTION The voltage value at which the value of the dynamic MPPT that
will act as a voltage reference. 2v is the default value.
Screen 4 MPPT Error
Description MPPT ERROR
Units
Range 0 to 400
FUNCTION This parameter will indicate the margin of error in the calculation
of the MPPT, so if it within the indicated range, no increase or
decrease. Set 1 as default value.

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User Manual Solar Pumping SD500
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Screen 5 MPPT Fact
Description START FACTOR MPPT
Units %
Range 75 to 100
FUNCTION Indicates the value on which the MPPT algorithm will start which
respect to the drive BUS voltage. It is set at 85% as default value.
Screen 6 Ti Arr
Description RUN TIME
Units s
Range 0 to 900
FUNCTION A delay between starts.

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User Manual Solar Pumping SD500
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3.- OTHER PARAMETERS TO MODIFY
It will be necessary to modify the parameters indicated below so that the
configuration of the drive is correct.
G1 OPTIONS
G1.3 PROG: PUMP
G4 INPUTS
G4.1.1 CONTROLMODE1: 5 (PLC)
G23 PLC
G23.1 Wr DAT1: 0x6
G23.2 Wr DAT2: 0x388
G23.3 Wr DAT3: 0x389
G23.4 Wr DAT4: 0x1113
G23.9 Rd DT1: 0x315
G23.10 Rd DT2: 0x316
G23.11 Rd DT3: 0x123B
G23.12 Rd DT4: 0x123C
G23.13 Rd DT5: 0x123D
G23.14 Rd DT6: 0x123E
G23.15 Rd DT7: 0x123F
G23.16 Rd DT8: 0x1240
G25 PUMP CONTROL
G25.2.1 PIDSetp: PLC
G25.2.2 PID Fbk: PLC
G25.2.3 PID Kc: +120% (recommended)
G25.2.4 PID It: 12s (recommended)

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User Manual Solar Pumping SD500
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4.- CONNECTION SCHEME
Only the start/stop signal must be connected to the PLC DI1, it´s not necessary
to connect any signals at the inputs/outputs of the inverter.
Terminals 24G and P0 (DI1): Start / Stop.