ABB ACS 140, Руководство по программированию, Страница: 27 / 70

19
A
P
PL
IC
A
T
IO
N
MACRO
S
Application Macro Motor Potentiometer
This macro provides a cost-effective interface for PLCs that vary the speed of
the drive using only digital signals.
The value of parameter 9902 is 4.
*Note!
•
If both DI 3 and DI 4 are active or inactive, reference is kept stable.
• Reference is stored during stop or power down condition.
• Analogue reference is not followed when motor potentiometer is
selected.
Motor potentiometer parameter values:
Input signals Output signals
• Start, stop and direction (DI1,2) • An. output AO: Frequency
• Reference up (DI3) • Relay output 1: Fault
• Reference down (DI4) • Relay output 2: Running
• Preset speed selection (DI5)
9905
MOTOR NOM VOLT
230/400 V 1105
EXT REF
1
MAX
50 Hz
9907
MOTOR NOM FREQ
50 Hz 1106
EXT REF
2
SELECT
0 (
KEYPAD
)
9908
MOTOR NOM SPEED
1440 rpm 1201
CONST SPEED SEL
5 (
DI
5)
1001
EXT
1
COMMANDS
2 (
DI
1,2) 1503
AO CONTENT MAX
50 Hz
1002
EXT
2
COMMANDS
0 (
NOT SEL
) 1601
RUN ENABLE
0 (
NOT SEL
)
1003
DIRECTION
3 (
REQUEST
) 2008
MAXIMUM FREQ
50 Hz
1101
KEYPAD REF SEL
1 (
REF
1) 2105
PREMAGN SEL
0 (
NOT SEL
)
1102
EXT
1/
EXT
2
SEL
6 (
EXT
1) 2201
ACC
/
DEC
1/2
SEL
0 (
NOT SEL
)
1103
EXT REF
1
SELECT
6 (
DI
3
U
,4
D
)
Control
Terminals
Function
1 SCR
2 AI 1 Not used
3 AGND
4 10 V Reference voltage 10 VDC
5 AI 2 Not used
6 AGND
7 AO Output frequency 0...20 mA <=> 0...50 Hz
8 AGND
9 +12 V +12 VDC
10 DCOM
11 DI 1 Start/Stop: Activate to start ACS 140
12 DI 2 Forward/Reverse: Activate to reverse
rotation direction
13 DI 3 Reference up: Activate to increase reference*
14 DI 4 Reference down: Activate to decrease
reference*
15 DI 5 Constant speed 1
16 DO 1A Relay output 1
Fault: open
17 DO 1B
18 DO 2A
Relay output 2
Running: closed
19 DO 2B
mA