266 Actual signals and parameters
0.0…100.0% Value in percent 1 = 0.1%
8105 REFERENCE
STEP 3
Sets a percentage value that is added to the process
reference. Applies only when at least three
auxiliary
(constant speed) motors are running.
See parameter 8103 REFERENCE STEP 1.
0.0%
0.0…100.0% Value in percent 1 = 0.1%
8109 START FREQ
1
Sets the frequency limit used to start the first auxiliary motor.
The first auxiliary motor starts if:
• no auxiliary motors are running
• drive output frequency exceeds limit 8109 + 1 Hz
• output frequency stays above a relaxed limit (8109 - 1 Hz)
for at least time 8115 AUX MOT START D.
After the first auxiliary motor starts, output frequency
decreases by value (8109 START FREQ 1) - (8112 LOW
FREQ 1).
In effect, the output of the speed regulated motor drops to
compensate for the input from the auxiliary motor.
E: 50.0 Hz
U: 60.0 Hz
See the figure, where:
A = (8109 START FREQ 1) - (8112 LOW FREQ 1)
B = Output frequency increase during the start delay.
C = Diagram showing auxiliary motor’s run status as
frequency increases (1 = On).
Note: 8109 START FREQ 1 value must be between
8112 LOW FREQ 1 and (2008 MAXIMUM FREQ) -1.
0.0…500.0 Hz Frequency 1 = 0.1 Hz
8110 START FREQ
2
Sets the frequency limit used to start the second auxiliary
motor. See 8109 START FREQ 1 for a complete description
of the operation.
The second auxiliary motor starts if:
• one auxiliary motor is running
• drive output frequency exceeds limit 8110 + 1 Hz
• output frequency stays above the relaxed limit (8110 -
1 Hz) for at least time 8115 AUX MOT START D.
E: 50.0 Hz
U: 60.0 Hz
0.0…500.0 Hz Frequency 1 = 0.1 Hz
All parameters
No. Name/Value Description Def/FbEq
AB
1
0
C
A
t
t
8115
8112
(8109)+1
8109
f (Hz)
f
MAX
f
MIN
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