User manual

4 Operation
4.6 Help leaflets
124 DC1 Variable Frequency Drive 04/16 MN04020003Z-EN www.eaton.com
When the DC1 variable frequency drive is used with its default settings,
parameter P-08 will show the drive’s rated operational current. The motor
protection function can be adjusted to match the motor being used by
changing this value to the rated motor current. If the motor current exceeds
the value set in P-08, the dots on the display (I x t) will flash to indicate that
there is an overload. If this overload is present for a prolonged period of time,
the DC1 variable frequency drive will switch off the output in order to protect
the motor,
and the display will show I.t-trP in order to indicate this. At this
point, the motor will coast to a stop.
Example
DC1-3402D3… variable frequency drive (rated operational current of 2.3 A)
for three-phase mains connection with a voltage of 400 V.
Figure 75: Motor rating plate, P-08 = 1.9 A
Example
The following example shows how to adjust the motor protection function:
View Description
Operating state Stop
Press the OK button and hold it down for about two
seconds.
Use the ▲ (Up) or ▼ (Down) arrow key to select
parameter P-08.
Press the OK button to confirm.
The rated operational current (2.3 A) for the
DC1-342D3 variable frequency drive will be displayed.
Press the ▼ (Down) arrow key four times in order to
set the appropriate rated motor current (1.9 A with
400 V).
The motor protection function will be adjusted so as to
match the motor being used
Press the OK button and hold it down for about two
seconds to confirm.
1410 min
230/400 V 3.2/1.9 A
50 Hz
-1
0.75 kW
cos ϕ 0.79
P-07
P-08
P-10
P-09
> 1 s
4 x
> 1 s