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AYK550-UH User's Manual
Code Description
5 =
5 – Enables the Interlock function, and assigns a digital input (starting with
DI
PFA relay. These assignments are defined in the following table and depend on:
• The number of PFA relays (number of parameters 1401...1403 and 1410...1412) with value = 31 (
• The Autochange function status (disabled if 8118
No. PFA
Autochange Disabled
Relays
0
1...
DI
5: Speed Reg Motor
DI
6: Free
DI
1
1...
DI
5: Speed Reg Motor
DI
6: First PFA Relay
DI
2
Not allowed
3...6
Not allowed
6 =
6 – Enables the Interlock function, and assigns digital input
DI
motor.
• Requires 8118
AUTOCHNG INTERV
No. PFA
Relays
0
DI
DI
1
Not allowed
2...6
Not allowed
8121 REG BYPASS CTRL
Selects Regulator by-pass control. When enabled,
Regulator by-pass control provides a simple control
mechanism without a PID regulator.
• Use Regulator by-pass control only in special
applications.
0 =
– Disables Regulator by-pass control. The drive
NO
uses the normal PFA reference: 1106
1 =
– Enables Regulator by-pass control.
YES
• The process PID regulator is bypassed.
Actual value of PID is used as the PFA reference
(input). Normally
reference.
• The drive uses the feedback signal defined by
4014
(or 4114) for the PFA frequency
FBK SEL
reference.
• The figure shows the relation between the control
signal 4014
FBK SEL
regulated motor's frequency in a three-motor
system.
Range
(P 8118)
4: Free
Not allowed
DI
4: Free
DI
DI
DI
DI
DI
DI
DI
Not allowed
= 0.
Autochange Disabled Autochange Enabled
1...
5: Free
Not allowed
DI
6: Speed Reg Motor
DI
DI
Not allowed
0...1
2
REF
2 is used as the PFA
EXT REF
(
4114) and the speed
OR
Group 81: PFA
Resolution
= 0, and otherwise enabled).
AUTOCHNG INTERV
Autochange Enabled
(P 8118)
1...
4: Free
DI
5: First PFA Relay
6: Free
1...
4: Free
DI
5: First PFA Relay
6: Second PFA Relay
6 to the interlock signal for the speed regulated
DI
1...
5: Free
DI
6: First PFA Relay
1
f
OUT
f
MAX
P 8110
.
SELECT
P 8109
P 8113
P 8112
f
MIN
A
A = No auxiliary motors running
B = One auxiliary motor running
C = Two auxiliary motors running
Default
5) to the interlock signal for eAYK
DI
).
PFA
0
B
C
Start-Up
136
S
P 4014
(%)
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