7 Modbus RTU
7.3 Control terminal functions with Modbus RTU
DE1 variable speed starter
09/14 MN040011EN
www.eaton.com
117
The activated operating direction will depend on the digital input being driven
(DI1, DI2) and on the value in command ID1, bit 1.
Table 37: Operating direction based on digital inputs DI1 and DI2
The reference input for the DE1 device using analog control terminal 4 (AI1)
will be disabled. In addition to a reference via Modbus RTU, it will also be
possible to set reference values directly with the control terminals:
•
Fixed frequencies (FF1 to FF4), coded in binary with FF2
0
and FF2
1
•
Digitally setting the setpoint value with the UP and DOWN commands
(P-15 = 4, 5, 6).
In addition to fixed frequency FF1, which can be activated directly, fixed
frequencies (FF1 to FF4) can be selected by using the binary-coded FF2
0
and FF2
1
inputs.
Table 38: Fixed frequencies
DI1
(ENA)
DI2
(ENADIR)
Modbus RTU
command (ID1)
Direction of
rotating field
(Motor)
H = FWD
L
Bit0 = 1
Bit1 = 0 (FWD)
→
FWD (right)
L
H = REV
Bit0 = 1
Bit1 = 0 (FWD)
→
REV (left)
H = FWD
L
Bit0 = 1
Bit1 = 1 (REV)
→
REV (left)
L
H = REV
Bit0 = 1
Bit1 = 1 (REV)
→
FWD (right)
→
Setting the reference value with the control terminals will
disable the transfer of reference values via Modbus RTU.
Fixed frequency
FF2
0
FF2
1
f
2
(DS)
PNU
FF1
L
L
20Hz
P-20
FF2
H
L
30Hz
P-21
FF3
L
H
40Hz
P-22
FF4
H
H
50 Hz
P-23
f
2
: DE1 variable speed starter output frequency
Default setting values (DS) with the corresponding parameter
numbers (PNUs).
Содержание PowerXL DE1 series
Страница 4: ...II ...
Страница 36: ...2 Engineering 2 5 Motor Selection 32 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 68: ...3 Installation 3 6 Block diagrams 64 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 132: ...7 Modbus RTU 7 4 Operating mode Modbus RTU 128 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 146: ...8 Technical Data 8 4 Dimensions 142 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 172: ...10 Fault messages 10 3 Fault list 168 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 186: ...182 DE1 variable speed starter 09 14 MN040011EN www eaton com ...