Lenze DDS Function library 9300 Servo - Manual (Page 19)

Function block library Lenze9300Servo.lib
Special functions
2.1.2 Supply−failure control (L_MFAIL)
2−9
L
Lenze9300Servo.lib EN 1.1
2.1.2.2 Supply failure control
Integration of the FB into the signal flow of the controller
bIReset_b
bStatus_b
nNout_a
nSet_a
nAct_a
nThreshold_a
bReset_b
bFault_b
nNSet_a
nDcSet_a
nConst_a
nAdapt_a
bOut_b
L_CMP
L_MFAIL
L_NSET
L_NSET1
L_CMP2
L_MFAIL1
nNAdd_a
bNAddInv_b
bLoad_b
nSet_a
bTI8_b
bTI4_b
bTI2_b
bTI1_b
bJog8_b
bJog4_b
bJog2_b
bJog1_b
nN_a
nOut_a
bNInv_b
bRfg0_b
bRfgStop_b bRfgIEqO_b
nCInhVal_a
nIn2_a
nIn1_a
MCTRL_bILoad_b FCODE_nC472_19_a
FCODE_nC472_18_a
MCTRL_nNSet_a
MCTRL_nDCVolt_a
FCODE_nC472_20_a
DIGIN_bIn5_b
MCTRL_nNAct_a
0
16384
Abb. 2−10 Links for the configuration CFG1000.lpc
Programming the example (SpeedModeInternal24VSupply.lpc) in Abb. 2−10:
1. Set the signal links according to Abb. 2−10 (see the following table for explanation).
Function Inputs/outputs of L_MFAIL Note
Speed setpoint path nNSet_a, nNOut_a
Start value for deceleration nSet_a Here, the actual speed value
Source for the setpoint of the DC bus voltage nDCSet_a Here, from the freely linkable code
FCODE_nC472_19_a
Source for the activation of the supply−failure
control: b_Fault_b ^ 2−7: Supply−failure detection
Proportional gain and adaptation of the
DC−bus voltage controller: n_Adapt_a, nConst_a
Restart protection nThreshold_a, nNAct_a In FCODE_nC472_18_a first, enter approx.
2% (reference: n
max
, C0011)
Reset input bReset_b Here, with terminal DIGIN_bIn5_b
Note!
Use C0003 to save all settings in the parameter set, if they are to be retained on power−off.