Input Description

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Function Block PUMP_ENERGY_CALC

Note

The inputs marked with a triangle e3c9657607c7fee20a3313900130d93f_78f228175b765b440a33139001315693 are of the class VAR_IN_OUT (input and output variable). These inputs must be connected to a variable.

EN (enable)

Data_Type Default_Value Range Unit
BOOL - - -

In order to enable the function block processing, input EN has to be continuously set to TRUE. The function block is not processed if input EN = FALSE. While input is set to TRUE, the inputs are continuously checked for validity and plausibility. If this is not the case, processing is aborted and an error is displayed.

TARIFF (tariff)

Data type: REAL, default value: 0, range: ³ 0, unit: currency (e.g. Dollar, Euro) /kWh

This is used with energy saved to calculate money saved by using drives (instead of DOL).

CO2_CONVERSION (CO:sub:2 conversion)

Data type: REAL, default value: 0, range: ³ 0

Factor which helps in converting the energy consumed in terms of CO:sub:2 emission tn/MWh.

MONITOR_DURATION (monitor duration)

Data type: INT, default value: 0, range: > 0, unit: min

Time duration to calculate the energy consumed.

START_ENERGY_CALC (start energy calculation)

Data type: BOOL

The energy calculation will start if the input is TRUE. If the input becomes FALSE the energy calculation will stop.

RESET_TOTAL_ENERGY (reset total energy)

Data type: BOOL

If this input is TRUE it will reset all the stored values zero. If this input is FALSE the stored values will get updated continuously.

PUMP1_ACT_FLOW (pump 1 actual flow)

Data type: REAL, default value: 0, range: ³ 0, unit: m3/h

Actual flow of PUMP 1 is connected to this parameter. Actual flow can be measured using standard flow meters or theoretically calculated using PQ curves of Function Block PUMP_FLOW_CALC.

PUMP2_ACT_FLOW (pump 2 actual flow)

Data type: REAL, default value: 0, range: ³ 0, unit: m3/h

Actual flow of PUMP 2 is connected to this parameter. Actual flow can be measured using standard flow meters or theoretically calculated using PQ curves of Function Block PUMP_FLOW_CALC.

PUMP3_ACT_FLOW (pump 3 actual flow)

Data type: REAL, default value: 0, range: ³ 0, unit: m3/h

Actual flow of PUMP 3 is connected to this parameter. Actual flow can be measured using standard flow meters or theoretically calculated using PQ curves of Function Block PUMP_FLOW_CALC.

RESET_TOTAL_VOLUME (reset total volume)

Data type: BOOL

Total volume is calculated using the flow of the available pumps. If this input is TRUE it will reset stored total volume value to zero. If this input is FALSE the stored values will get updated continuously.

PUMP1_DOL_POWER (pump 1 dol power)

Data type: REAL, default value: 0, range: ³ 0, unit: kW

Pump1 Direct On Line power, if directly connected to the motor.

PUMP2_DOL_POWER (pump 2 dol power)

Data type: REAL, default value: 0, range: ³ 0, unit: kW

Pump2 Direct On Line power, if directly connected to the motor.

PUMP3_DOL_POWER (pump 3 dol power)

Data type: REAL, default value: 0, range: ³ 0, unit: kW

Pump3 Direct On Line power, if directly connected to the motor.

PUMP1_ACT_POWER (pump 1 actual power)

Data type: REAL, default value: 0, range: ³ 0, unit: kW

Pump1 actual power read from the drive.

PUMP2_ACT_POWER (pump 2 actual power)

Data type: REAL, default value: 0, range: ³ 0, unit: kW

Pump2 actual power read from the drive.

PUMP3_ACT_POWER (pump 3 actual power)

Data type: REAL, default value: 0, range: ³ 0, unit: kW

Pump3 actual power read from the drive.

PUMP1_MOTOR_EFF (pump 1 motor efficiency)

Data type: REAL, default value: 0, range: 0-100.0, unit: %

Motor efficiency in % of Pump1.

PUMP2_MOTOR_EFF (pump 2 motor efficiency)

Data type: REAL, default value: 0, range: 0-100.0, unit: %

Motor efficiency in % of Pump2.

PUMP3_MOTOR_EFF (pump 3 motor efficiency)

Data type: REAL, default value: 0, range: 0-100.0, unit %

Motor efficiency in % of Pump3.

TOTAL_VOLUME (total volume)

Data type: LREAL, default value: -, range: ³ 0, unit: m3

Total volume is consumed, which is calculated using flow of all the pumps. It is cumulative and the user can connect global retain variable in program can retain this value.

TOTAL_ENERGY (total energy)

Data type: LREAL, default value: -, range: ³ 0, unit: kWh

Total energy which was consumed, calculated using actual power of all pumps. It is cumulative and the user should connect global retain variable in program to retain this value.