Eaton DC1-12011 Series, Manual

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6 Parameters
6.2 Digital and analog inputs
DC1 Frequency Inverter 10/12 MN04020003Z-EN www.eaton.com
111
6.2.2.2 Motor potentiometer
The function of an electronic motor potentiometer for entering setpoints can
be set with parameters P-12, P-15 and P-31.
Example
P-12 = 2; P-15 = 0; P-31 = 2 or = 3
Figure 62: Motor potentiometer for
both operating directions (FWD / REV)
The start enable is applied with a permanent contact on control signal termi-
nal 2 (DI1); the operating direction (FWD or REV) is chosen with control signal
terminal 6 (DI4) – only if P-12 = 2. If P-12 = 1, the operating direction cannot
be changed. The frequency reference value can then be increased with a
control command (pulse) on terminal 3 (DI2) (UP). The acceleration will take
place using the time set in P-03 (acc1) all the way to the maximum output
frequency set in P-01.
Parameter P-31 is used to define the behavior of the frequency inverter in the
event of a restart:
• P-31 = 2: The DC1 frequency inverter will start off from the minimum
frequency (P-02).
• P-31 = 3: The frequency inverter will store the set value and move to the
previously set frequency reference value when starting.
The frequency reference value set here will be retained even after the
supply voltage is switched off.
Control signal terminal 4 (DI3) can be used to reduce the configured fre-
quency reference value of the motor potentiometer (DOWN). The decelera-
tion will take place using the time set in P-04 (dec1) all the way to 0 Hz if a
minimum frequency has not been set in P-02.
DI1 DI2 DI3 DI4
2 3
ST
ART
UP
+24 V
1
4
DOWN
6
FWD/REV