ABB ACS550-01, Руководство пользователя

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ACS550 User’s Manual 77
Start-Up
1104 REF1 MIN
Sets the minimum for external reference 1.
• The minimum analog input signal (as a percent of
the full signal in volts or amps) corresponds to
REF
1
MIN
in Hz/rpm.
• Parameter 1301
MINIMUM AI
1 or 1304
MINIMUM AI
2
sets the minimum analog input signal.
• These parameters (reference and analog min. and
max. settings) provide scale and offset adjustment
for the reference.
1105 REF1 MAX
Sets the maximum for external reference 1.
• The maximum analog input signal (as a percent of
full the signal in volts or amps) corresponds to
REF
1
MAX
in Hz/rpm.
• Parameter 1302
MAXIMUM AI
1 or 1305
MAXIMUM AI
2
sets the maximum analog input signal.
1106 REF2 SELECT
Selects the signal source for external reference
REF
2.
0…17 – Same as for parameter 1103
REF
1
SELECT
.
19 =
PID
1
OUT
– The reference is taken from the
PID
1 output. See Groups 40 and 41.
1107 REF2 MIN
Sets the minimum for external reference 2.
• The minimum analog input signal (in volts or amps) corresponds to
REF
2
MIN
in %.
• Parameter 1301
MINIMUM AI
1 or 1304
MINIMUM AI
2 sets the minimum analog input signal.
• This parameter sets the minimum frequency reference.
• The value is a percentage of the:
– maximum frequency or speed.
– maximum process reference
– nominal torque
1108 REF2 MAX
Sets the maximum for external reference 2.
• The maximum analog input signal (in volts or amps) corresponds to
REF
2
MAX
in Hz.
• Parameter 1302
MAXIMUM AI
1 or 1305
MAXIMUM AI
2 sets the maximum analog input signal.
• This parameter sets the maximum frequency reference.
• The value is a percentage of the:
– maximum frequency or speed
– maximum process reference
– nominal torque
Ext ref
Analog
P 1105
P 1104
P 1301
P 1302
input signal
P 1301
P 1302 input signal
Analog
Ext ref
or 1304
or 1305
or 1304
or 1305
(
MAX
)
(
MIN
)
P 1105
P 1104
(
MAX
)
(
MIN
)
19=
PID
1
1…17
REF
2
SELECT
LIMIT
MAX
(1107, 1108)
MIN
(1107, 1108)
PFC
If PFC is used