Lenze 8400 User Manual

Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23 1272
17 Function library
17.1 Function blocks | L_CalcDiameter_1
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17.1.22.5 Limit value monitoring
wMinDiameter and wMaxDiameter serve to define the limit values for the given diameter values. If
they are reached/exceeded, the corresponding ouput (bDMaxLimit/bDminLimit) is set to TRUE.
• The unfiltered diameter value dwOutDiameter and the filtered diameter value nDiameter_a are
limited.
• The limit values are entered in [mm].
• The hysteresis for resetting bDMaxLimit/bDminLimit is permanently set to 1 % of
wMaxDiameter.
• For parameter setting of further FBs, the value in wMinDiameter with regard to wMaxDiameter
is provided via the nDMin_a output.
17.1.22.6 Converting diameter in 1/D
For evaluating the material speed with 1/D (speed-controlled winder), the reciprocal value of the
reel diameter is provided via nReziprDiameter_a.
• This value refers to the limitation value wMinDiameter.
17.1.22.7 Physical state variables
The dwOutDiameter output provides the current diameter as physical quantity (1 LSB ≡ 1m).
nNReel_v outputs the winding speed which results from the nMotorSpeedAct_v motor speed and
the current (wGearNum/wGearDenom) gearbox factor.
For supporting further functions (e.g. a traversing control), the winding speed is integrated
additionally.
• The angle of rotation is output via dnPos_p.
•By setting bResetPos to TRUE, the angle of rotation is reset.

Lenze 8400 Specifications

General

Category	DC Drives
Series	8400
Protection class	IP20
Control Type	Vector control
Communication	CANopen, PROFIBUS, Ethernet
Protection Features	Overcurrent, overvoltage, undervoltage, overtemperature
Input Voltage	AC 230/400/480 V