Lenze E94A - Manual (Page 645)

Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
645
5 Function blocks
5.208 L_WndIdentMInertia - identification of the moment of inertia
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Outputs
Parameters
Identifier/data type Value/meaning
dnState
DINT
Status (bit coded)
• Bits that are not listed have not been assigned with a status (always "0").
Status messages:
Bit 0 Identification started. Waiting for activation of the basic function
"Torque follower".
Bit 1 Waiting for motor standstill.
Bit 2 Drive is accelerated to the specified speed.
Bit 3 Drive has reached the specified speed and is braked to standstill.
Bit 4 The moment of inertia (dwMInertia) is calculated.
Bit 5 Identification completed successfully.
Error messages:
Bit 16 Identification cancelled (bStartIdent = FALSE).
Bit 17 Identification cancelled (bFollowerEnabled = FALSE).
Bit 18 Specified maximum speed not reached.
Bit 20 Speed reached at the end of acceleration process too low.
bEnableFollower
BOOL
Interface for the basic function "Torque follower"
• Connect this output with the input TF_bEnable of the SB LS_TorqueFollower.
dnTorqueSet_n
DINT
Interface for the basic function "Torque follower"
• Connect this output with the input TF_dnTorqueSet_n of the
SB LS_TorqueFollower.
bBusy
BOOL
Status signal "Detection of measured value active"
TRUE Detection of measured value active.
bDone
BOOL
Status signal "Identification completed successfully"
TRUE Identification completed successfully.
dwMinertia
DWORD
Identified moment of inertia in [0.1 kg cm 2 ]
Parameter Possible settings Info
C04870 5.00 % 100.00 Maximum motor speed
• 100 % ≡ motor reference speed
(C00011)
• Initialisation: 10.00 %
C04871 -100.00 % 100.00 Maximum motor torque
• 100 % ≡ motor reference torque
(C00057/2)
• Initialisation: 25.00 %
C04872 0 ms 1000 Start delay
• Initialisation: 500 ms
C04873 0 ms 50 Current speed filter time
• Initialisation: 5 ms
C04879 -2147483647 2147483647 Status
• Display of the bit-coded output si-
gnal dnState.