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Figure 39: p/Q controller ..........................94 Figure 40: Power limitation structure ......................95 Figure 41: RKP-D control structure with slave pump ..................99 Figure 42: Hold pressure setpoint behavior ....................102 Figure 43: Status machine of the hold pressure enable ................103 Figure 44: Assignment of analog input value to active parameter set ............
This manual and all other associated documentation for hardware and software must always be kept in a loca- tion where they will be readily accessible and close to the RKP-D or the equipment in which they are installed. 1.1.4 Warranty and liability This manual only describes the functionality and influence of the CANopen parameters.
The following figure shows the position actual value path and the parameters influencing this behavior. The parameter 0x6301 holds the position of the main stage. The parameter 0x3235 holds the value of the RKP-D stroke ring position (the External LVDT value). After the scaling, the value becomes the actual value.
(e.g., pump1 = 100 % flow; pump2 = -100 % flow). The RKP-D has the capability to manage such situations. One pump is operating as a master pump. All other pumps are working as a slave pump. The master processes all set commands: pressure, flow and power limit.
Local holding pressure switchover can only be activated if the RKP-D is in device state 'ACTIVE' and in control mode p/Q only. Once this function has been activated (by setting bit 13 of the control word), the RKP-D starts monitoring the pressure actual value until the hold pressure trigger level (parameter <HoldPressureTrigger>, 0x2107) is reached (see the following figure).
16384 <PressureSetpoint> The pressure setpoint is activated by the RKP-D when the holding pressure trigger level (<HoldPressureTrigger>, 0x2107) is reached (see Figure 42). This pressure is held until a new pressure set- point is transmitted or the trigger is disabled.
Error information 8 Diagnostics If the RKP-D recognizes a malfunction, a self-diagnosis is performed. The fault reaction is dependent on the identified malfunction and the fault reaction parameter setting (0x2830). If an error occurs and a fault reaction is activated, an emergency object is sent out. The emergency object contains information about the occurred error.
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