Lenze 8400 motec - Manual (Page 369)

Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05 369
11 Parameter reference
11.2 Parameter list | C00239
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C00239
C00241
Parameter | Name:
C00239 | Limitation of lower speed
Data type: INTEGER_16
Index: 24336 d = 5F10 h
From version 04.01.00
Here, a minimum lower setpoint speed can be set if, for example, the setpoint for pumps and fans should not fall
below a certain value. This prevents, e.g. a volume flow to be fallen below the minimum threshold.
• Compared to the setting "Min. analog setpoint" ( C00010/1 ), this setting is scaled in [rpm] and is thus
independent of the reference speed set in C00011 .
• This parameter can be used if old 8200 motec projects are migrated to the 8400 motec.
• In the Lenze setting "-9999 rpm", no limitation is active.
Note:
• Stopping commands such as DC-injection braking, quick stop and RFG_0 are executed independently of this
setting. Switch them off if you want to activate this setting.
• The maximum current controller can reduce the output frequency to below the minimum speed set here.
Setting range (min. value | unit | max. value) Lenze setting
-9999 rpm 9999 -9999 rpm
 Read access  Write access  CINH  PLC STOP  No transfer  COM  MOT Scaling factor: 1
Parameter | Name:
C00241 | L_NSet_1: Hyst. NSet reached
Data type: INTEGER_16
Index: 24334 d = 5F0E h
From version 04.00.00
Hysteresis window for setting the "speed setpoint reached" status
• Related digital signal in selection list: "62: LA_NCtrl_bSpeedSetReached"
• The reset hysteresis is permanently 0.5 %.
Setting range (min. value | unit | max. value) Lenze setting
0.00 % 100.00 0.50 %
 Read access  Write access  CINH  PLC STOP  No transfer  COM  MOT Scaling factor: 100