SK 54xE – Users Manual for Frequency Inverters
118 BU 0505 EN-3021
Parameter
{factory setting}
Setting value / Description / Note Supervisor
Parameter
set
Pos: 220 /Anleitungen/ Elektronik/F U und Starter/5. Parameter/ Parameterauflis tung (P000 ...)/P400- P499/Parameter P401 – Modus An alogeingang [SK 1x0E, SK 54xE] @ 0\mod_1327679475386 _388.docx @ 9165 @ @ 1
P401 [-01]
...
[-06]
Analog input mode
(Mode analog input)
0 ... 5
{ all 0 }
This parameter determines how the frequency inverter reacts to an analog signal which is less
than the 0% adjustment (P402).
[-01] = Analog input 1: analog input 1, integrated into the FI
[-02] = Analog input 2: analog input 2, integrated into the FI
[-03] = External analog input 1, "External analog input 1": Analog input 1 of the first IO extension
[-04] = External analog input 2, "External analog input 2": Analog input 2 of the first IO
extension
[-05] = External Analog input 1, 2nd IOE, "External analog input 1 of the 2nd IOE": Analog
input 1 of the second IO extension
[-06] = External Analog input 2, 2nd IOE, "External analog input 2 of the 2nd IOE": Analog
input 2 of the second IO extension
Pos: 221 /Anleitungen/ Elektronik/F U und Starter/5. Parameter/ Parameterauflis tung (P000 ...)/P400- P499/Parameter P401 – Modus An alogeingang - Modusli ste @ 2\mod_1355489392924_ 388.docx @ 52378 @ @ 1
0 = 0 – 10V limited: An analogue setpoint smaller than the programmed adjustment 0% (P402)
does not lead to undershooting of the programmed minimum frequency (P104), i.e. it does
not result in a change of the direction of rotation.
1 = 0 – 10V: If a setpoint smaller than the programmed adjustment 0% (P402) is present, this can
cause a change in direction rotation. This allows rotation direction reversal using a simple
voltage source and potentiometer.
E.g. internal setpoint with rotation direction change: P402 = 5 V, P104 = 0 Hz, Potentiometer
0-10 V Rotation direction change at 5 V in mid-range setting of the potentiometer.
At the moment of reversal (hysteresis = ±
P505), the drive stands still when the minimum
frequency (P104) is smaller tha
n the absolute minimum frequency (P505). A brake that is
controlled by the FI will have entered the hysteresis range.
If the minimum frequency (P104) is greater than the absolute minimum frequency (P505),
the drive reverses when the minimum frequency is reached. In the hysteresis range ± P104,
the FI supplies the minimum frequency (P104), the brake controlled by the FI is not applied.
2 = 0 – 10V monitored: If the minimum
adjusted setpoint (P402) is
undershot by 10% of the difference
value from P403 and P402, the FI
output switches off. Once the
setpoint is greater than [P402 - (10%
* (P403 - P402))], it will deliver an
output signal again. With the change
to firmware version V 2.2 R0 the
behaviour of the FI changes in that
the function is only active if a
function for the relevant input has
been selected in P400
f / Hz
P104
(fmin)
P105
(fmax)
P403 = 10.0V
P402 = 2.0V
= 8.0V
U/V
OFF = 2.0V - 10% * 8.0V = 1.2V
E.g. setpoint 4-20 mA: P402: Adjustment 0 % = 1 V; P403: Adjustment 100 % = 5 V; -10 %
corresponds to -0.4 V; i.e. 1...5 V (4...20 mA) normal operating zone, 0.6...1 V = minimum
frequency setpoint, below 0.6 V (2.4 mA) output switches off.
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