ACS 160 User’s Manual
61
1103
EXT REF1 SELECT
This parameter selects the signal source of external reference 1.
0 =
KEYPAD
Reference is given from the control panel.
1 = AI 1
Reference is given through analogue input 1.
2 = AI 2
Reference is given through analogue input 2.
3 = AI1/
JOYST
; 4 = AI2/
JOYST
Reference is given through analogue input 1 (or 2 accordingly) configured for a joystick. The minimum input
signal runs the drive at maximum reference in the reverse direction. The maximum input signal runs the
drive at maximum reference in the forward direction (See Figure 5). See also parameter 1003
DIRECTION
.
Caution:
Minimum reference for joystick should be 0.3 V (0.6 mA) or higher. If a 0... 10 V signal is used,
the ACS 160 will operate at maximum reference in the reverse direction if the control signal is lost. Set
parameter 3022
AI
1
FAULT
LIMIT
to a value 3 % or higher, and parameter 3023
AI
2
FAULT
LIMIT
to 1 (
FAULT
),
and the ACS 160 will stop in case the control signal is lost.
Figure 5 Joystick control. Maximum for external reference 1 is set with Parameter 1105 and
minimum with Parameter 1104.
5 = DI3U,4D(R)
Speed reference is given through digital inputs as motor potentiometer control. Digital input DI3 increases
the speed (the U stands for “up”), and digital input DI4 decreases the speed (the D stands for “down”). (R)
indicates that the reference will be reset to zero when a Stop command is given. The rate of change of the
reference signal is controlled by parameter 2204
ACCELER
TIME
2.
6 = DI3U,4D
Same as above, except that the speed reference is not reset to zero on a Stop command. When the
ACS 160 is started, the motor will ramp up at the selected acceleration rate to the stored reference.
7 = DI4U,5D
Same as above, except that the digital inputs in use are DI4 and DI5.
8 = COMM
The reference is given through serial communication.
9 = COMM + AI1
10 = COMM * AI1
The reference is given through serial communication. The analogue input 1 signal is combined to the
fieldbus reference (sum or multiplication).
11 = DI3U,4D(R,NC); 12 = DI3U,4D(NC); 13 = DI4U,5D(NC)
Selections 11,12 and 13 are the same as selections 5,6,7 respectively, with the exception that the reference
value is not copied when:
• moving from EXT1 to EXT 2, or
• moving from EXT2 to EXT1, or
• moving from local to remote.
+2 %
-2 %
10 V / 20 mA
Hysteresis 4 % of Full Scale
EXT
REF
1
MIN
-
EXT
REF
1
MIN
-
EXT
REF
1
MAX
EXT
REF
1
MIN
EXT
REF
1
MAX
-
EXT
REF
1
MIN
2 V / 4 mA
0 V / 0 mA
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