Lenze 8400 motec - Manual (Page 502)

13 Application examples
13.1 Sequence control
502 Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Special features:
In partial-load operational range, (e.g. during the night), it can be operated with a small unit and
thus energy can be saved.
For pump 2, both a second 8400 motec and a starter or contactor can be used.
[13-2] Level curve
Example parameter setting:
V
IN1
(pump 1) = 0 ... 50 %
V
IN2
(pump 2) = 0 % / 50 %
9
,1
287
9
9
,1
9
727$/
9
,1
287
9
9
,1
9
727$/
Parameter Info Setting Info
Settings for motor control and device control
C00006 Motor control 8: VFCplus: V/f quadr  V/f characteristic control (VFCplus)
C00141 Auto-start option 0x01 Starting performance of the controller:
Inhibit after mains connection.
 Auto-start option "Inhibit at power-
on"
C00019 Auto-DCB: Threshold 100 rpm  Automatic DC-injection braking (auto
DCB)
C00106 Auto-DCB: Hold time 0.0 s DC-injection braking deactivated.
Assignment of the input/output terminals
C00007 Control mode 10: Terminals 0 The pre-assignment is changed through
the following parameter setting.
C00621/1 LS_DigitalOutput:bRelay 220:
L_DigitalDelay_1
_bOut
The relay is triggered by the binary delay
element.
The relay causes pump 2 to be released
(delayed).
C00701/5 LA_NCtrl: bSetSpeedCcw 0: Not connected Now, a reversal or rotation via digital in-
put DI4 is not possible anymore.
Analog input  Analog terminals
C00034 AINx: Configuration 2: 4...+20mA Input signal is current signal
4 mA ... 20 mA.
C00598 Resp. to open circuit AINx 0: No Reaction Open-circuit monitoring is deactivated.
Setpoint generator  L_NSet_1
C00012 Acceleration time - main setpoint 20 s
C00013 Deceleration time - main set-
point
20 s