94 ACQ550-U1 User’s Manual
Parameters
Group 11: REFERENCE SELECT
This group defines:
• how the drive selects between command sources
• characteristics and sources for
REF1 and REF2.
Code Description
1101 KEYPAD REF SEL
Selects the reference controlled in local control mode.
1 = REF1(Hz/rpm) – Reference type depends on parameter 9904 MOTOR CTRL MODE.
• Speed reference (rpm) if 9904 = 1 or 2 (
VECTOR:sPEED).
• Frequency reference (Hz) if 9904 = 3 (
SCALAR:FREQ).
2 =
REF2(%)
1102 EXT1/EXT2 SEL
Defines the source for selecting between the two external control locations
EXT1 or EXT2. Thus, defines the source for
Start/Stop/Direction commands and reference signals.
0 = EXT1 – Selects external control location 1 (EXT1).
• See parameter 1001
EXT1 COMMANDS for EXT1’s Start/Stop/Dir definitions.
• See parameter 1103
REF1 SELECT for EXT1’s reference definitions.
1 =
DI1 – Assigns control to EXT1 or EXT2 based on the state of DI1 (DI1 activated = EXT2; DI1 de-activated = EXT1).
2…6 =
DI2…DI6 – Assigns control to EXT1 or EXT2 based on the state of the selected digital input. See DI1 above.
7 =
EXT2 – Selects external control location 2 (EXT2).
• See parameter 1002
EXT2 COMMANDS for EXT2’s Start/Stop/Dir definitions.
• See parameter 1106
REF2 SELECT for EXT2’s reference definitions.
8 =
COMM – Assigns control of the drive via external control location EXT1 or EXT2 based on the fieldbus control word.
• Bit 5 of the Command Word 1 (parameter 0301) defines the active external control location (
EXT1 or EXT2).
• See Fieldbus user’s manual for detailed instructions.
9 = TIMED FUNC 1 – Assigns control to EXT1 or EXT2 based on the state of the Timed Function (Timed Function
activated =
EXT2; Timed Function de-activated = EXT1). See Group 36: TIMED FUNCTIONS.
10…12 =
TIMED FUNC 2…4 – Assigns control to EXT1 or EXT2 based on the state of the Timed Function. See TIMED
FUNC 1 above.
-1 =
DI1(INV) – Assigns control to EXT1 or EXT2 based on the state of DI1 (DI1 activated = EXT1; DI1 de-activated =
EXT2).
-2…-6 =
DI2(INV)…DI6(INV) – Assigns control to EXT1 or EXT2 based on the state of the selected digital input. See
DI1(INV) above.
1103 REF1 SELECT
Selects the signal source for external reference
REF1.
0 =
KEYPAD – Defines the control panel as the reference
source.
1 = AI1 – Defines analog input 1 (AI1) as the reference
source.
2 =
AI2 – Defines analog input 2 (AI2) as the reference
source.
3 =
AI1/JOYST – Defines analog input 1 (AI1), configured for
joystick 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 (
REQUEST).
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 analog input triggers a fault, stopping the drive:
• Set parameter 1301
MINIMUM AI1 (1304 MINIMUM AI2) at 20% (2 V or 4 mA).
• Set parameter 3021
AI1 FAULT LIMIT to a value 5% or higher.
• Set parameter 3001
AI<MIN FUNCTION to 1 (FAULT).
4 =
AI2/JOYST – Defines analog input 2 (AI2), configured for joystick operation, as the reference source.
• See above (
AI1/JOYST) description.
+2%-2%
10 V /
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
2V / 4mA
0V / 0mA
20 mA
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