EM028480-01 OMM 6060AC, 6060ACFS(3 847 036.00)-EN
OPERATION Active-power transducer - Function
Fig. 2-94:
The electrical system of this machine is equipped with an active-power transducer. The transducer is located in the 400 V switch cabinet (arrow, Fig. 2-94:). The active-power transducer measures permanently the currents, voltages and phase angles in the system and derives the active power (P) the apparent power (S) and the reactive power (Q) from these values. All these measured values can be displayed on the screen. The active-power value is used to generate an analog signal (4-20 mA). This signal is used to monitor the tilting angle of the hydraulic pumps. In combination with the Pump Management System (PMS), any overloading of the electric motor due to an excessive demand of hydraulic power is thus avoided. The device is factory-programmed in such a way that all relevant measured values can be displayed in four screens on the monitor (1, Fig. 2-95:). The different screens are selected with the keys (3). Screen 1 displays the numeric values of: the voltages of phases L1, L2 and L3 and the total current. Screen 2 displays the numeric values of: the active-power (P), the apparent power (S), the reactive power (Q) and the frequency. Screen 3 displays a current / voltage diagram. Screen 4 displays the numeric values of: the currents of phases L1, L2 and L3. For more information please refer to the the manufacturer's description.
Fig. 2-95:
1
Display screen for measured values and menus.
2
ENTER key, switches display illumination on / off; confirms item selection in menus
3
Keys for display navigation; selects the screens for measured values and menus.
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