Parameter listing and descriptions
307
ACH550 User's Manual
8121
REG BYPASS CTRL
0…1
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 =
NO
– Disables Regulator by-pass control. The drive uses the normal
PFA reference 1106
REF
2
SELECT
.
1 =
YES
– Enables Regulator by-pass control.
• The process PID regulator is bypassed.
Actual value of PID is used as the PFA reference (input). Normally
EXT
REF
2 is used as the PFA reference.
• The drive uses the feedback signal defined by 4014
FBK
SEL
(or
4114) for the PFA frequency reference.
• The figure shows the relation between the control signal 4014
FBK
SEL
(
OR
4114) and the speed regulated motor’s frequency in a three-
motor system.
Example:
In the diagram below, the pumping station’s outlet flow is
controlled by the measured inlet flow (A).
Code Description
Range
P 4014
f
MAX
P 8110
P 8109
P 8113
P 8112
A = No auxiliary motors running
B = One auxiliary motor running
C = Two auxiliary motors running
A
f
MIN
B
C
(%)
f
OUT
Summary of Contents for ACH550-01
Page 1: ...ACH550 User s Manual ACH550 01 Drives 0 75 110 kW ACH550 UH Drives 1 150 HP ABB ...
Page 10: ...Update Notice 8 ...
Page 12: ......
Page 18: ...6 ACH550 User s Manual ...
Page 50: ...38 Preparing for installation ACH550 User s Manual ...
Page 325: ...313 ACH550 User s Manual ...
Page 358: ...346 ACH550 User s Manual ...
Page 409: ...Technical data 397 ACH550 User s Manual Frame size R1 IP54 UL Type 12 ...
Page 410: ...398 Technical data ACH550 User s Manual Frame size R2 IP54 UL Type 12 ...
Page 411: ...Technical data 399 ACH550 User s Manual Frame size R3 IP54 UL Type 12 ...
Page 412: ...400 Technical data ACH550 User s Manual Frame size R4 IP54 UL Type 12 ...
Page 413: ...Technical data 401 ACH550 User s Manual Frame size R5 IP54 UL Type 12 ...
Page 414: ...402 Technical data ACH550 User s Manual Frame size R6 IP54 UL Type 12 ...
Page 415: ...Technical data 403 ACH550 User s Manual Frame size R1 IP21 UL Type 1 ...
Page 416: ...404 Technical data ACH550 User s Manual Frame size R2 IP21 UL Type 1 ...
Page 417: ...Technical data 405 ACH550 User s Manual Frame size R3 IP21 UL Type 1 ...
Page 418: ...406 Technical data ACH550 User s Manual Frame size R4 IP21 UL Type 1 ...
Page 419: ...Technical data 407 ACH550 User s Manual Frame size R5 IP21 UL Type 1 ...
Page 420: ...408 Technical data ACH550 User s Manual Frame size R6 IP21 UL Type 1 ...
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