ST_TcHybridAxParam (from V3.0.44)

This structure contains additional parameters of the servo-electric/hydraulic axis. Under Setup (partly in preparation), suitable procedures for axis commissioning are presented.

ST_TcHybridAxParam (from V3.0.44) 1:

The order of the parameters is not guaranteed.

Syntax

TYPE ST_TcHybridAxParam :
(* last modification: 20.02.2019 *)
STRUCT
    fPump_N_max:          LREAL;
    fPump_N_min:          LREAL;

    fPump_P_max:          LREAL;
    fPump_P_min:          LREAL;

    fPump_Q_fast_P:       LREAL;
    fPump_Q_slow_P:       LREAL;

    fPump_Q_fast_M:       LREAL;
    fPump_Q_slow_M:       LREAL;

    fPump_Q_leak:         LREAL;

    fPump_Enc_Offset:     LREAL;

    fCylinder_A_addP:     LREAL;
    fCylinder_A_addM:     LREAL;

    fRampTime:            LREAL;

    fAside_PrsScaling:    LREAL;
    fBside_PrsScaling:    LREAL;
    fSystem_PrsScaling:   LREAL;

    nPumpCavities:        DINT;
    nConcept:             DINT;

    nPump_EncType:        E_TcMcEncoderType:=iTcMc_EncoderSim;

    bRegenerative:        BOOL;
    bVirtual_A_addP:      BOOL;
    bVirtual_A_addM:      BOOL;
    bAside_PrsHiResADC:   BOOL;
    bBside_PrsHiResADC:   BOOL;
    bSystem_PrsHiResADC:  BOOL;

END_STRUCT
END_TYPE

Parameter

Name

Type

Description

fPump_N_max

LREAL

[rpm] The minimum and maximum permissible pump speeds.

fPump_N_min

LREAL

fPump_P_max

LREAL

[bar] The minimum and maximum permissible operating pressure of the pump.

fPump_P_min

LREAL

fPump_Q_fast_P

LREAL

[cm3/rev] The rotation-related flow rate of the pump in rapid or force mode at the cylinder connection acting in the positive direction.

fPump_Q_slow_P

LREAL

fPump_Q_fast_M

LREAL

[cm3/U] The rotation-related flow rate of the pump in rapid or force mode at the cylinder connection acting in the negative direction.

fPump_Q_slow_M

LREAL

fPump_Q_leak

LREAL

reserved.

fPump_Enc_Offset

LREAL

reserved.

fCylinder_A_addP

LREAL

If, depending on the situation, an area effective for oil demand is connected in the positive direction of action, it must be identified here. This can also be an oil demand required by an apparent area, which actually bypasses the cylinder. In this case, the area should be identified as "virtual".

fCylinder_A_addM

LREAL

If, depending on the situation, an area effective for oil demand is connected in the negative direction of action, it must be identified here. This can also be an oil demand required by an apparent area, which actually bypasses the cylinder. In this case, the area should be identified as "virtual".

fRampTime

LREAL

When switching between rapid and force mode, the weighting factor for the velocity output and the maximum attainable velocity are changed. A ramp can be defined here, in order to avoid a discontinuity.

fAside_PrsScaling

LREAL

The scaling pressures for the A-side, the B-side and the system pressure detection are to be set here.

fBside_PrsScaling

LREAL

fSystem_PrsScaling

LREAL

nPumpCavities

DINT

Enter the number of pump chambers here. For piston pumps the number of pistons must be set. For internal gear pumps, the number of teeth on the internal pinion must be set.

nConcept

DINT

The circuit concept used for the servo-electric/hydraulic axis must be specified here.

nPump_EncType

E_TcMcEncoderType

The encoder type of the pump drive is defined here. Only a small selection of encoder types is available.

This is not the encoder on the cylinder.

bRegenerative

BOOL

This parameter indicates that the smaller cylinder area is operated in oil exchange with the larger cylinder area.

bVirtual_A_addP

BOOL

If an area that can be activated in the positive direction of action is effective for the oil demand but not for the force build-up, it must be identified here.

bVirtual_A_addM

BOOL

If an area that can be activated in the negative direction of action is effective for the oil demand but not for the force build-up, it must be identified here.

bAside_PrsHiResADC

BOOL

This parameter indicates that the pressure sensor of the area with positive direction of action is read with a 24-bit input terminal.

bBside_PrsHiResADC

BOOL

This parameter indicates that the pressure sensor of the area with negative direction of action is read with a 24-bit input terminal.

bSystem_PrsHiResADC

BOOL

This parameter indicates that the pressure sensor at the pressurized hydraulic reservoir is read with a 24-bit input terminal.

See Setup for more information about axis commissioning.