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CM-RC-01
Bitzer CM-RC-01 User Manual
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Specs
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v. 3.0
Reference
guide
Compressor Con
trol Modul
e CM-
RC
-
01
3.0
7 /
44
3.
Definitions
BEST
BEST Software
CR
Capacity Regulatio
n
DOL
Direct On Line
(motor start)
ESD
Electro Static Discha
rg
e
HP
H
i
g
h Pres
sure
HW
H
ardw
are/
el
ectr
on
i
cs.
I/O
I
np
ut
/
O
u
t
pu
t
(
el
ectr
i
cal
si
g
na
l
s
i
n and
ou
t
o
f
a
un
i
t
)
LP
Lo
w
P
r
essu
r
e
Mod
bu
s
A
pp
l
i
catio
n
-
l
ay
er
m
essa
g
i
n
g
p
r
otocol
-
ht
t
p:
/
/
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w
w
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od
bu
s.
or
g/specs
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NC
N
orm
al
l
y
C
l
ose
d (
r
el
ay
)
NO
N
orm
al
l
y
O
pe
n
(
r
el
ay
)
NTC
N
eg
ativ
e
T
empe
r
atu
r
e C
oe
f
f
i
ci
en
t
(
sen
so
r
el
e
m
e
nt)
PTC
P
osi
t
i
v
e T
empe
r
atu
r
e Co
e
f
f
i
ci
en
t
(
sen
so
r
el
e
m
en
t
)
PW
P
art
w
i
nd
i
ng
(
m
o
t
or
st
a
r
t
)
FI
Fre
q
ue
ncy
i
nv
ert
er
Y/
∆
S
t
ar
/
d
el
t
a
(
m
o
t
or
s
t
ar
t
)
6
8
Table of Contents
Table of Contents
2
Read this First
4
Reference Guide
5
Safety
5
General
6
Definitions
7
Functions
8
Control Functions
8
Motor Start
8
Oil Heater
9
Cylinder Head and Motor Cooling
9
Capacity Control
10
Monitoring and Diagnosis
10
Motor Temperature
10
Discharge Temperature
11
Oil Supply
11
High Pressure Handling
11
Pressure Limits (Option)
11
Application Limits (Option)
12
Short-Cycling Warning
13
Datalog
13
Alarms
14
Events
14
Datalog Information
14
Periodic Data
14
Statistics and Counters
14
Accumulated Operation Counters
15
Capacity Load
15
Daily Counters
15
Runtime Statistic
15
Compressor Start Statistic
15
BEST Software
16
Communication
16
Control of the CM
17
Commands and Setpoint
17
Command Start
17
Setpoint - and Speed Changes
17
Enable Serial Control
18
Required Signals to Start the Compressor
18
Digital and Analogue Signals
18
Serial Control (Modbus)
18
Control Word Bit Definitions
18
Data Valid Bit
19
Examples of Serial Control Word Setups
19
Status Word Bit Definitions
19
Setting the Serial Setpoint
20
Serial Control Timeout Function
20
I/O List for CM
21
Drawings
23
Standards
24
Alarm System
25
Alarm Severity Types
25
Fault Reset Types
25
Alarm List
26
Programming and Monitoring
29
Introduction
29
Serial Communication
29
Modbus (RTU) Configuration
29
Data Values, Scaling and Data Types
30
Reading and Writing 32 Bit Values Via Modbus
30
Modbus Function Codes
30
Modbus Exception Codes
31
Parameters
31
Control - Application
31
Status - Alarm
32
Status - Compressor
33
Status - Motor
34
Status - Device
35
Status - IO
35
Configuration - Application
35
Configuration - Compressor
36
Configuration - COM1
37
Logs - Application
37
Info - Compressortype
37
Trouble Shooting
39
Communications Trouble Shooting
39
Status Leds
40
LED Flashing Patterns of the Three Operation Status Leds
40
Notes
43
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Bitzer CM-RC-01 Specifications
General
Brand
Bitzer
Model
CM-RC-01
Category
Control Unit
Language
English
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