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ACH550-01 User's Manual
Code Description
1103 REF1 SELECT
Selects the signal source for external reference
0 =
– Defines the control panel as the reference source.
KEYPAD
1 =
1 – Defines analogue input 1 (
AI
2 =
2 – Defines analogue input 2 (
AI
3 =
1/
AI
JOYST
operation, as the reference source.
• The minimum input signal runs the drive at the maximum reference
in the reverse direction. Define the minimum using parameter 1104.
• The maximum input signal runs the drive at maximum reference in
the forward direction. Define the maximum using parameter 1105.
• Requires parameter 1003 = 3 (
WARNING! Because the low end of the reference range commands
full reverse operation, do not use 0 V as the lower end of the
reference range. Doing so means that if the control signal is lost
(which is a 0 V input), the result is full reverse operation. Instead,
use the following set-up so that loss of the analogue input triggers a
fault, stopping the drive:
• Set parameter 1301
4 mA).
• Set parameter 3021
• Set parameter 3001
EXT REF
EXT REF
-
EXT REF
-
EXT REF
Parameter listing and descriptions
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– Defines analogue input 1 (
MINIMUM AI
1
AI
FAULT LIMIT
<
AI
MIN FUNCTION
1
MAX
1
MIN
1
MIN
1
MAX
2 V / 4 mA
0 V / 0 mA
EXT REF
-
EXT REF
Hysteresis 4 % of full scale
Range
0...17
1.
REF
1) as the reference source.
AI
2) as the reference source.
AI
1), configured for joystick
AI
).
REQUEST
1 (1304
2) at 20% (2 V or
MINIMUM AI
to a value 5% or higher.
to 1 (
).
FAULT
1
MIN
-2 %
1
MIN
10 V /
20 mA
+2 %
189
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