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AK-PC 772A
Danfoss AK-PC 772A User Manual
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AK-PC 772A
Capacity
controller RS8HF102 © Danf
oss 2017-07
49
4. C
ongurat
ion and o
p
eratio
n
This section describes how the controller:
• Is configured
• Is operated
W
e have decided to w
ork on the basis of the example we went
through previously
, i.e. compressor contr
ol with 3 compressors f
or
MT and 2 compressors f
or L
T and high pressure control using hea
t
recov
ery and gas cooler
.
The example is shown two pages in.
48
50
Table of Contents
Default Chapter
2
Table of Contents
2
1 Introduction
3
Application
3
Principles
4
2 Design of a Controller
7
Module Survey
8
Common Data for Modules
10
Controller
12
Extension Module AK-XM 101A
14
Extension Module AK-XM 102A / AK-XM 102B
16
Extension Module AK-XM 103A
18
Extension Module AK-XM 204A / AK-XM 204B
20
Extension Module AK-XM 205A / AK-XM 205B
22
Extension Module AK-XM 208C
24
Extension Module AK-OB 110
26
Extension Module EKA 163B / EKA 164B / EKA 166
27
Graphic Display MMIGRS2
27
Power Supply Module AK-PS 075 / 150 / 250
28
Communication Module AK-CM 102
29
Preface to Design
30
Functions
30
Connections
31
Limitations
31
Design of a Compressor and Condenser Control
32
Procedure
32
Sketch
32
Compressor and Condenser Functions
32
Connections
33
Planning Table
35
Length
36
Linking of Modules
36
Determine the Connection Points
37
Connection Diagram
38
Supply Voltage
40
Ordering
41
3 Mounting and Wiring
43
Mounting
44
Mounting of Analog Output Module
44
Mounting of Extension Module on the Basic Module
45
Wiring
46
4 Configuration and Operation
49
Configuration
50
Connect PC
50
Authorization
52
Unlock the Configuration of the Controllers
53
System Setup
54
Set Plant Type
55
Set Control of MT Compressors
56
Set Control of LT Compressors
60
Setup Control of Condenser Fans
61
Setup Control of High Pressure
63
Setup Control of Receiver Pressure
64
Setup Control of Heat Recovery
65
Setup Display
66
Setup Functions for General Purpose
67
Separate Thermostat
68
Separate Pressostat
68
Separate Voltage Signal
69
Separate Alarm Inputs
69
Separate PI Function
70
Configuration of Inputs and Outputs
71
Set Alarm Priorities
73
Lock Configuration
75
Check Configuration
76
Check of Connections
78
Check of Settings
80
Schedule Function
82
Installation in Network
83
First Start of Control
84
Start the Control
85
Manual Capacity Control
86
5 Regulating Functions
87
Suction Groups
88
Controlling Sensor
88
Reference
88
Capacity Control of Compressors
89
Capacity Distribution Methods
90
Power Pack Types - Compressor Combinations
91
Compressor Timers
95
Compressor with Variable Capacity
96
Load Shedding
97
Injection on
97
Liquid Injection in Common Suction Line
98
Safety Functions
98
Condenser / Gas Cooler
100
Capacity Control of Condenser
100
Reference for Condensing Pressure
100
Heat Recovery
102
Capacity Distribution
104
EC Motor
104
Step Regulation
104
Speed Regulation
104
Condenser Couplings
105
Safety Functions for Condenser
105
Circuits for Control of CO2 Gas Pressure
106
Receiver Control
107
Parallel Compression
108
General Monitoring Functions
109
Miscellaneous
111
Appendix - Alarm Texts
116
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Danfoss AK-PC 772A Specifications
General
Brand
Danfoss
Model
AK-PC 772A
Category
Controller
Language
English
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