Lenze 8200 Frequency inverters - Manual (Page 181)

Configuration
8200SHB0199 7-44
7.5.11.4 Setpoint input via function ”Motor potentiometer”
Function The setpoint input via the function ”Motor potentiometer” is only active, if C007 is set accordingly.
(Series “Standard”: see chapter 7.8, “Code table”; series “HVAC”: see chapter 7.9, ”Code table”).
The field frequency is changed via the set acceleration and deceleration times.
Activation
Series “Standard”:
- C007 = -10-, -11-, -12-, -13-, -21-:
Function E1 E2
Setpoint = 0 Hz LOW LOW
Reduce setpoint until f
dmin
HIGH LOW
Increase setpoint until f
dmax
LOW HIGH
Setpoint remains constant HIGH HIGH
Series “HVAC”: - C007 = -10-, -11-, -12-, -13-, -21-, -23-, -24-, -25-, -26-, -27-, -44-:
Function E1 E2 E3 3) E4 3)
Setpoint = 0 Hz (T
iQSP
, C105) 1) LOW LOW LOW LOW
Reduce setpoint until f
dmin
(T
if
, C013) 2) HIGH LOW HIGH LOW
Increase setpoint until f
dmax
(T
ir
, C012) LOW HIGH LOW HIGH
Setpoint remains constant HIGH HIGH HIGH HIGH
1) LOW level at terminals E1 and E2 reduces the setpoint along the QSP ramp (C105) until
f
d
= 0 Hz
2) Only possible, if the setpoint has exceeded f
dmin
before.
3) Only, if C007 = -44-
Activation of the function “Motor potentiometer” via normally-closed contacts
Series “Standard”: C007 = -10- ... -13-, -21-
Series “HVAC”: C007 = -10- ... -13-, -21- ... -27- C007 = -44-
E1 E2 E3 E4 20
^
STOP = CCW
E1 E2 E3 E4 20
^ STOP = CCW
Important The setpoint is saved
- when switching off the mains,
- when inhibiting the controller,
- when having fault messages.
Exception:
- If the control terminals are set to LOW in the event of mains failure (e.g. external voltage supply),
the setpoint 0 Hz will be stored.
- Activation of the QSP function (C007 = -13-, -21-) resets the motor potentiometer to 0 Hz.
Special features The terminal configuration C007 = -13- provides an open-circuit protection for quick stop.
Show/Hide Bookmarks