Set Up of Energy Calculators and Optimisers Crib Sheet

CS550 Settings

Group 45: ENERGY SAVING

This group defines the setup of calculation and optimization of energy savings. The values of saved energy parameters 0174 SAVED KWH, 0175 SAVED MWH, 0176 SAVED AMOUNT 1, 0177 SAVED AMOUNT 2 and 0178 SAVED CO2 are derived from subtracting the drive's energy consumed from the direct-on-line (DOL) consumption calculated on the basis of parameter 4508 PUMP POWER. As such, the accuracy ofthe values is dependent on the accuracy of the power estimate entered in that parameter.

4502 ENERGY PRICE

Price of energy per kWh.

  • Used for reference when energy savings are calculated
  • See parameters 0174 SAVED KWH, 0175 SAVED MWH, 0176 SAVED AMOUNT 1, 0177 SAVED AMOUNT 2 and 0178

SAVED CO2 (reduction on carbon dioxide emissions in tn)

4507 CO2 CONV FACTOR

Conversion factor for converting energy into CO2 emissions (kg/kWh or tn/MWh). Used for multiplying the saved energy in MWh to calculate the value of parameter 0178 SAVED CO2 (reduction on carbon dioxide emissions in tn).

4508 PUMP POWER

Pump power (as a percentage of the nominal motor power) when connected directly to supply (DOL).

  • Used for reference when energy savings are calculated
  • See parameters 0174 SAVED KWH, 0175 SAVED MWH, 0176 SAVED AMOUNT 1, 0177 SAVED AMOUNT 2 and 0178 SAVED CO2
  • It is possible to use this parameter as the reference power also for other applications than pumps.  The reference power can also be some other constant power than a motor connected directly online.

4509 ENERGY RESET

Resets energy calculators 0174 SAVED KWH, 0175 SAVED MWH, 0176 SAVED AMOUNT 1, 0177 SAVED AMOUNT 2

ACS800 Settings

45 ENERGY OPT Energy optimization settings

45.02 ENERGY TARIFF1

Price of energy per kWh. Used for reference when savings are calculated. See parameters 01.46 SAVED KWH, 01.48 SAVED AMOUNT and 01.50 SAVED CO2. 0.0000…1024.0000 Price of energy per kWh. 1 = 0.001

45.06 E TARIFF UNIT Specifies the currency used for the savings calculation

LOCAL The currency is determined by the setting of parameter 99.01 Language.

EUR Euro 1

USD US dollar 2

45.08 PUMP REF POWER Pump power when connected directly to supply. Used for reference when energy savings are calculated.

See parameters 01.46 SAVED KWH, 01.48 0… 950% Pump power in percent of nominal motor power.

Note: The maximum value depends on the motor and is calculated in power-up or when the motor power changes. 1000 = 100%

45.09 ENERGY RESET Resets the energy counters 01.46 SAVED KWH, 01.47 SAVED GWH, 01.48

SAVED AMOUNT, 01.49 SAVED AMOUNT M, 01.50 SAVED CO2 and 01.51 SAVED CO2 KTON.

DONE Reset not requested (normal operation).

RESET Reset energy counters. The value reverts automatically to DONE.