3 Installation
3.5 Electrical installation
DB1 variable frequency drive
11/20 MN040031EN
Eaton.com
70
3.5.2.3 Connection example
Figure 39: Simple connection example
•
Two operating directions:
•
FWD = clockwise rotating field
•
REV = anticlockwise rotating field
•
R1: External reference value potentiometer, frequency reference value
0 - f
max
(P-01)
The control cables should be shielded and twisted for the external connec-
tion. The screening is applied on one side in the proximity of the variable
frequency drive (PES).
￫
The input and output functions can be adjusted by setting the
parameters accordingly (
￫
Parameter Manual MN040034EN).
Terminals 4 (DI3/AI2), 6 AI1/DI4), and 8 (AO1/DO1) can be assig-
ned with both digital and analog signals in this process.
The relevant signal switchover will occur automatically as
selected in the corresponding parameters.
•
Terminal assignment of inputs: P-12 and P-15
•
Relay output function: P-18
•
Function of the digital/analog output at terminal 8: P-25
•
Format of the input signal from analog input 1: P-16
•
Format of the input signal from analog input 2: P-47
5
6
7
1
2
3
+10 V AI1
0 V
+24 V
DI1
DI2
PE
PES
PES
M
4K7
R1
M
FWD
REV
ZB4-102-KS1
15 mm
(0.59”)
M4
2
Cu 2.5 mm
1
2
3
≦ 20 m
(≦ 65.62 ft)