Endress+Hauser autoclean CPC 20 User manual

BA 161C/07/en/10.97
No. 50086077
autoclean
CPC 20 / CPC 20 Z
Control System for
Automatic Cleaning of
pH Electrodes
Operating Instructions
Nothing beats know-how
Endress
Hauser
Reiniger
cleaner
Wasser
water
Position Messen
measurement position
Position Wartung/Service
maintenance position
Endress+Hauser
AUTOCLEAN CPC 20
Quality made by
Endress+Hauser
ISO 9001

Table of contents
1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Symbolsused............................................................2
1.2 Conformity statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Safety....................................................................3
2.1 Intendeduse.............................................................3
2.2 Generalsafetynotes.......................................................3
3 Description...............................................................4
3.1 System components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2 Measuring system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.3 Device variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3.1 Nameplates ............................................................6
3.3.2 Ordercode.............................................................7
4 Installation............................................................... 8
4.1 Storage and transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2 Unpacking...............................................................8
4.3 Dimensions..............................................................9
4.4 Mounting...............................................................10
4.5 Pneumatic connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.6 Electricalconnection......................................................12
4.6.1 Safetynotes...........................................................12
4.6.2 Installation in non-Ex area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.6.3 Installation in Ex area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.7 Packaging and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5 Installation and start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.1 Installation for version C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.2 Installation for non-Ex version (version M) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.3 Installation for Ex version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.4 Start-up................................................................19
6 Operation ...............................................................20
6.1 VersionC...............................................................20
6.1.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1.2 External control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.1.3 LEDs on CYR 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1.4 LEDs on CPC 20-C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1.5 Keyfunctions..........................................................23
6.1.6 Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.2 VersionM...............................................................25
6.2.1 Interval cleaning / weekly program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.2.2 Interval measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7 Maintenance and service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.1 Error messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.2 Cleaning ...............................................................26
7.3 Repair .................................................................26
7.4 Accessories.............................................................26
8 Appendix ...............................................................27
8.1 Technicaldata...........................................................27
8.2 Examples for connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.2.1 Non-Ex version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
8.2.2 Exversion.............................................................30
8.3 Index..................................................................31
0i-PC20.CHP
autoclean CPC 20 / CPC 20 Z Table of contents
Endress+Hauser 1

1 General information
1.1 Symbols used
Warning:
This symbol alerts to hazards which
may cause serious injuries as well as
damage to equipment if ignored.
Caution:
This symbol alerts to possible mal-
function due to operator error.
Note:
This symbol indicates important
items of information.
1.2 Conformity statement
The Autoclean CPC 20 / CPC 20 Z control
system has been developed and manufactu-
red in accordance with the applicable
European standards and directives.
Note:
An EC certificate of conformity may
be requested from Endress+Hauser.
An EC certificate of conformity is
supplied with variant CPC 20 Z for
installation in explosive atmospheres.
1 General information autoclean CPC 20 / CPC 20 Z
2 Endress+Hauser

2 Safety
2.1 Intended use
The Autoclean CPC 20 / CPC 20 Z control sys-
tem is used to control the automatic cleaning
of pH electrodes. It can be connected to the
retractable assemblies CPA 463, CPA 463S
or CPA 465. The Ex version CPC 20 Z permits
operation in explosive atmospheres.
2.2 General safety notes
Warning:
Operation of the device in a manner
other than as described in these
operating instructions can lead to
unsafe and improper functioning of
the measuring system.
Installation, start-up, operation
The Autoclean CPC 20 / CPC 20 Z system
has been designed for safe operation accord-
ing to the state of the art in engineering and in
keeping with the applicable regulations and
EC directives; see »Technical data«.
However, if used improperly or other than for
the intended purpose, it may pose a hazard,
e.g. due to improper connection.
Installation, electrical connection, start-up,
operation and maintenance of the measuring
system must therefore be performed exclusi-
vely by trained specialists authorised by the
system operator. This personnel must have
read and understood these operating instructi-
ons and must adhere to them.
Immunity to interference
This device is protected against interference,
such as pulse-shaped transients, high fre-
quency and electrostatic discharges, accor-
ding to the applicable European standards.
This is only valid, however, for a device con-
nected according to the notes in these instal-
lation and operating instructions.
02-PC20.CHP
autoclean CPC 20 / CPC 20-Z 2 Safety
Endress+Hauser 3

3 Description
3.1 System components
All system components are completely pre-wi-
red. The housing comes with Pg cable
glands, pneumatic connections and a vent
connection. Power, the CYR 10 injector, the
external control signals and the signal outputs
are connected to the terminal strip in the con-
trol cabinet.
The supply voltage for the non-Ex version is
230, 110 or 100 V AC or 24 V DC. All system
components are supplied with 24 V DC via
the built-in power supply unit.
The Ex version is supplied with power via the
CPM 152 measuring transmitter or via an in-
trinsically safe power supply.
Version C
The control system CPC 20-C (control via
program sequencer CYR 20) comprises:
• program sequencer CYR 20,
• pneumatic valves for assembly control,
• feedback devices (pneumatic or inductive),
• switches and keys for manual and automa-
tic operation, and
• LED operating status indicators.
Note:
The CPC 20-M / CPC 20Z-M can
only be controlled with the CPM 152
transmitter in conjunction with soft-
ware version 2.10 or later.
Version M
The control system CPC 20-M (control via
CPM 152 transmitter) comprises:
• pneumatic valves for assembly control, and
• feedback devices (pneumatic or inductive).
Version Z
The control system CPC 20 Z (control via
CPM 152 transmitter) comprises:
• pneumatic valves for assembly control, and
• feedback devices (pneumatic or inductive).
3 Description autoclean CPC 20 / CPC 20 Z
4 Endress+Hauser

3.2 Measuring system
Endress+Hauser
AUTOCLEAN CPC 20
Position SERVICE
Position MEAS
Water
Cleaner
Probfit assembly
Electr. line
Water
Cleaner Water
CYR 10
Power supply
Autoclean
CPC 20
CPM 151
(or CPM 252)
4 ... 20 mA output
Air
PC20-NX3.CDR
Compr. air
External
start/stop
External hold
Fig. 3.1
Example of a complete
measuring system in
non-Ex area
(CPC20-C)
PARAM
MEAS CAL
DIAG
Endress+Hauser
AUTOCLEAN CPC 20
Probfit assembly
Control
CPM 152
CPK 7
Electr. line
Air Cleaner
CYR 10
Water
PC20-NX2.CDR
Power supply
Compr. air
Autoclean
CPC 20
Water
4 ... 20 mA output
Control lines
Fig. 3.2
Example of a complete
measuring system in
non-Ex area
(CPC 20-M)
PARAM
MEAS CAL
DIAG
12
Probfit assembly
CPK 7
CPM 152-Z Autoclean
CPC 20 Z
Ex area Non-Ex
area
Recorder/
ext. start/stop
Compr. air
Power
supply
Water
PC20-X3.CDR
Cleaner
Electr. line
Water
Air
Injector
CYR 10Z-E12
Control line
Fig. 3.3
Example of a complete
measuring system in Ex
area (CPC 20Z)
03-PC20.CHP
autoclean CPC 20 / CPC 20-Z 3 Description
Endress+Hauser 5

3.3 Device variants
3.3.1 Nameplates
You can identify the instrument variant by the
order code on the nameplate of the instru-
ment.
Fig. 3.4 Nameplate of CPC 20
Fig. 3.5 Nameplate of CPC 20 Z
3 Description autoclean CPC 20 / CPC 20 Z
6 Endress+Hauser

3.3.2 Order code
Autoclean CPC 20
Version
C Control via program sequencer CYR 20
M Control via measuring transmitter CPM 152
Y Special version
Power supply
0 230 V, 50/60 Hz
1 110 V, 50/60 Hz
5 100 V, 50/60 Hz
824VDC
9 Special version
Feedback signals
PN For pneumatic feedback (e.g. CPA 463)
ID For inductive feedback (e.g. CPA 465)
YY Special version
Features
00 Base version
10 With compressed air monitoring (M version only)
99 Special equipment
CPC 20- ⇐complete order code
Autoclean CPC 20 Z
Version
M Control via measuring transmitter CPM 152
Feedback signals
PN For pneumatic feedback (e.g. CPA 463)
ID For inductive feedback (e.g. CPA 465)
Features
00 Base version
10 With compressed air monitoring
CPC 20 Z- ⇐complete order code
03-PC20.CHP
autoclean CPC 20 / CPC 20-Z 3 Description
Endress+Hauser 7

4 Installation
4.1 Storage and transport
The packaging material used to store or trans-
port the instrument must provide shock and
moisture protection. Optimal protection
is provided by the original packaging materi-
als. Conformance with the ambient conditions
(see »Technical data«) must be assured.
4.2 Unpacking
Verify that the contents are undamaged. In-
form the post office or freight carrier as well
as the supplier of any damage.
Check that the delivery is complete and
agrees with the shipping documents and your
order:
• Quantity delivered
• Instrument type and version according to
the nameplate (see section 3.3)
• Operating instructions
• Identification card(s)
Save the original packaging in case the de-
vice must be stored or shipped at a later time.
If you have any questions, please consult
your supplier or the Endress+Hauser sales
office in your area (see back cover of these
operating instructions for addresses).
Included in delivery:
• CPC 20-M.PN..
Switch cabinet with mounting kit
Operating Instructions
• CPC 20-M.ID..
Switch cabinet with mounting kit
Operating Instructions
Inductive proximity switches to Namur
• CPC 20-C.PN..
Switch cabinet with mounting kit
Operating Instructions
• CPC 20-C.ID..
Switch cabinet with mounting kit
Inductive proximity switches
• CPC 20Z-MPN..
Switch cabinet with mounting kit
Operating Instructions
Switch cabinet key
Ex conformity certificate
• CPC 20Z-MID..
Switch cabinet with mounting kit
Operating Instructions
Switch cabinet key
Inductive proximity switches to Namur
Ex conformity certificate
4 Installation autoclean CPC 20 / CPC 20 Z
8 Endress+Hauser

4.3 Dimensions
Cleaner
Water
Position MEAS
Position SERVICE
Endress+Hauser
AUTOCLEAN CPC 20
370
40
100
326
180
30
6
30
46
165
160
6x15 45
110
70
40
PC20Y4-3.CDR
65
~20
Fig. 4.1 Dimensions of CPC 20
Endress+Hauser
AUTOCLEAN CPC 20 Z
65
65
135
350
150
250
PC20Y4-4.CDR
~20
38
65
Fig. 4.2 Dimensions of CPC 20 Z
04-PC20.CHP
autoclean CPC 20 / CPC 20 Z 4 Installation
Endress+Hauser 9

4.4 Mounting
34
25
42
25
43
60
28 37
M 8x1
M 8x1
∅18
NS-PC20.CDR
For CPC 20-M.ID and
CPC 20Z-MID For CPC 20-C.ID
Fig. 4.4
Dimensions of inductive
proximity switches (left)
and right-angle connector
A
B
C
G
F
D
E
PC20-2.CDR
Fig. 4.3 Dimensions for wall mounting
Length in mm
Variant A B C D E F G
CPC 20-M
CPC 20-C 260 254 260 379 30
CPC 20 Z 176 269 370 277 30
4 Installation autoclean CPC 20 / CPC 20 Z
10 Endress+Hauser

4.5 Pneumatic connection
Safety notes:
Warning:
•If faults cannot be remedied, the
equipment must be removed from
service and secured to prevent
accidental start-up.
•The pressure in the system is to
be released before carrying out
any service work. The applicable
safety rules are to be observed.
•Compressed air and water shutoff
valves are to be provided by the
operator.
•Couplings and lines under pressu-
re are to be checked at regular in-
tervals.
Note:
•The distance between the Autocle-
an CPC 20 and the retractable as-
sembly must not exceed 10 m.
•Connections number 5 and 6 on
all ID versions of the CPC 20 /
CPC 20Z are equipped with cable
glands for connection of retractab-
le assemblies with inductive
position feedback (e.g. CPA 465).
Autoclean
CPC 20 /CPC 20Z



5
3
6
2
2
6
5
3
2
3
6
5
To retractable assembly
PNEUM.CDR
CPA 463S-R
CPA 465
Connection block
Probfit CPA 463
Fig. 4.5 Pneumatic connections
04-PC20.CHP
autoclean CPC 20 / CPC 20 Z 4 Installation
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4.6 Electrical connection
4.6.1 Safety notes
Warning:
•Work under tension and connecti-
on to the mains may only be
performed by properly trained
specialist personnel.
•The device must be grounded
before start-up!
•Verify before connection that the
power supply ratings match the
data specified on the nameplate!
•Adherence to the applicable regu-
lations is mandatory for connecti-
on of units with explosion
protection (see section 4.6.3).
Caution:
•All lines conducting signals are to
be shielded according to VDE
0165 and to be routed separately
from other control lines.
•There is no galvanic separation be-
tween power supply input, control
and feedback connections on ver-
sions CPC 20-.8.. intended for con-
nection to 24 V DC.
Note:
Immunity to interference is only guar-
anteed if the screens are connected
to PE.
4 Installation autoclean CPC 20 / CPC 20 Z
12 Endress+Hauser

4.6.2 Installation in non-Ex area
Connection for version M
89
90
91
92
93
94
21
.22
Pressure moni-
toring option
Measurement
feedback
CPC 20-M.ID only
Service
feedback
CPC 20-M.ID only
Water
Y1
CYR 10
X1: 3 4 PE 5 6 PE PE 8 9 PE 11 12 30 31 32 33 34 35 36 37 38 39 PE
Cleaner
Y1
CPC 20 M
PC20-1.CDR
Mycom CPM 152
AC:L N PE
DC:L+ L- PE
Power supply
Fig. 4.6 Connection diagram for CPC 20-M
Terminals Assignment
L1 / N / PE Power supply: 230/110/100 V AC
L+/L
-/PE Power supply: 24 V DC
1 / 2 / PE Loop-through primary supply downstream from main switch
3 / 4 / PE Water valve CYR 10
5 / 6 / PE Cleaner valve CYR 10
8 / 9 (8+) (9-) proximity switch connection for Service feedback
11 / 12 (11+) (12-) proximity switch connection for Measurement feedback
30 / 31 Connection for optional pressure switch (make contact)
for compressed air monitoring
32-37 Control signal connection on CPM 152 variants
38 / 39 Power supply and feedback on CPM 152 variants
04-PC20.CHP
autoclean CPC 20 / CPC 20 Z 4 Installation
Endress+Hauser 13

CPC20-C.CDR
AC:L1 N PE 3 4 PE 5 6 PE PE 789PE101112 202122 23242526
DC:L+ L- −+−+External
stop
External
start Hold 2 Hold1
Power supply Water Cleaner
Control outputs
Service
feedback
CPC 20-C.ID only
Measurement
feedback
CPC 20-C.ID only
External control
inputs
CPC 20 C
Fig. 4.7 Connection diagram for CPC 20-C
Terminals Assignment
L1 / N / PE Power supply: 230/110/100 V AC
L+/L
-/PE Power supply: 24 V DC
1 / 2 / PE Loop-through primary supply downstream from main switch
3 / 4 / PE Water valve CYR 10
5 / 6 / PE Cleaner valve CYR 10
7 / 8 / 9 (7-) (8+) proximity switch connection for Service feedback
10 / 11 / 12 (10-) (11+) proximity switch connection for Measurement feedback
20 / 21 External stop
20 / 22 External start
23 / 24 and 25 / 26 Potential-free hold output
4 Installation autoclean CPC 20 / CPC 20 Z
14 Endress+Hauser

4.6.3 Installation in Ex area
General notes for installation in hazardous areas
Versions of the unit identified by the letter Z
(which stands for the German term ‘Zertifikat’,
i.e. ‘certificate’) in the type designation have
been manufactured and tested according to
the harmonised European regulations
(CENELEC) for »Electric equipment for explo-
sive atmospheres«. These units comply with
the basic requirements stipulated in directive
94/9/EC of March 23, 1994. A copy of the
certificate of conformity (BVS) is supplied with
the device.
Installation and operation are subject to the
applicable national regulations.
The Autoclean CPC 20 Z control system built
according to Ex regulations may be installed
in Ex zone 1.
Note:
The Endress+Hauser basic informati-
on brochure GI 003/11/e, »Explosion
protection of electric equipment and
systems« contains helpful informati-
on on installation and operation of
electric equipment in hazardous
areas.
This brochure can be ordered from
the Endress+Hauser sales offices.
Warning:
Only the CYR 10 Z-E12 injector with
12 V piezoelectric valves may be
connected to the CPC 20 Z.
04-PC20.CHP
autoclean CPC 20 / CPC 20 Z 4 Installation
Endress+Hauser 15

GND
+12V +12V
GND
CPC20-Z.CDR
PE12 3 4 5 6 7 8 9101112 17 18 19 20 2526
Measurement
Service
+– +–
Namur proximity
switch for
CPA 465
Compressed air
monitoring
89 90 91 92 93 94 +-+-
Cleaner Water
CYR 10 Z-E12
Mycom CPM 152
term. FCXI
(current input)
21+ 22-
Mycom CPM 152
CPC 20 Z
Fig. 4.8 Connection diagram for for CPC 20 Z
Terminals Assignment
1 / 2 Pressure switch connection (make contact) for compressed air monitoring
3 / 4 (3+) (4-) proximity switch connection for Service feedback
5 / 6 (5+) (6-) proximity switch connection for Measurement feedback
7-12 Connection of binary control signals from CPM 152
17 / 18 (17+) (18-) piezoelectric cleaner valve
19 / 20 (19+) (20-) piezoelectric water valve
25+ / 26- Current input / feedback to CPM 152
4 Installation autoclean CPC 20 / CPC 20 Z
16 Endress+Hauser

4.7 Packaging and disposal
Packaging
Packaging must provide shock and moisture
protection. Optimal protection is provided by
the original packaging materials.
Disposal
Note:
Electronic components to be dispo-
sed of are considered special wa-
ste! Please observe local regulations
for disposal!
04-PC20.CHP
autoclean CPC 20 / CPC 20 Z 4 Installation
Endress+Hauser 17

5 Installation and start-up
Caution:
Check that all connections have
been properly made before power-
ing up the system!
5.1 Installation for version C
1. Mounting of control cabinet, assembly and
injector CYR 10.
2. Establish hose connections between assem-
bly and control cabinet.
3. Establish hose or pipe connections between
injector CYR 10 and cleaning port of assem-
bly.
4. Establish drive water connection to injector
CYR 10.
5. Connection of injector CYR 10 to terminal
strip in control cabinet:
−Water valve to terminals 3 and 4
−Cleaner valve to terminals 5 and 6.
6. Connection of power supply (optionally
230/110/100 V AC or 24 V DC) to terminal
strip in control cabinet:
−Terminals PE, L1 and N (for AC).
−Terminals PE, L+ and L– (for DC).
7. Where applicable, connection of:
−Hold 1 to terminals 25/26
−Hold 2 to terminals 23/24
−External start to 20/ 21
−External stop to 20/22
8. Version -.CID...:
Connection of proximity switches to terminals
7-, 8+ and 9 and 10-, 11+ and 12
9. Connection of compressed air to control ca-
binet and injector.
10. Connection of compressed air to control
cabinet.
5.2 Installation for non-Ex version (version M)
1. Mounting of control cabinet, assembly and
injector CYR 10.
2. Establish hose connections between assem-
bly and control cabinet.
3. Establish hose or pipe connections between
injector CYR 10 and cleaning port of assem-
bly.
4. Establish drive water connection to injector
CYR 10.
5. Connection of injector CYR 10 to terminal
strip in control cabinet:
−Water valve to terminals 3 and 4
−Cleaner valve to terminals 5 and 6.
6. Connection of power supply (optionally
230/110/100 V AC or 24 V DC) to terminal
strip in control cabinet:
−Terminals PE, L1 and N (for AC).
−Terminals PE, L+ and L– (for DC).
7. Connection of measuring transmitter to
terminals 32-37 (for version M).
8. Version -MID..:
Connection of proximity switches to terminals
8+ and 9- and 11+ and 12-.
9. Connection of compressed air to control ca-
binet.
5 Installation and start-up autoclean CPC 20 / CPC 20 Z
18 Endress+Hauser

5.3 Installation for Ex version
1. Mounting of control system CPC 20 Z,
assembly and injector CYR 10 Z-E12.
2. Establish hose connections between assem-
bly and control cabinet.
3. Establish hose or pipe connections between
injector CYR 10 Z-E12 and cleaning port of
assembly.
4. Establish drive water connection to injector
CYR 10 Z-E12.
5. Connection of injector CYR 10 Z-E12 to
terminal strip in control cabinet:
−Water valve to terminals 19 and 20
−Cleaner valve to terminals 17 and 18.
6. Connection of measuring transmitter to
terminals 25/26 and 7-12.
7. Version Z-MID...
Connection of proximity switches to terminals
3+ and 4- and 5+ and 6-
8. Connection of compressed air to control ca-
binet and injector.
5.4 Start-up
Caution:
Check that all connections have
been properly made before power-
ing up the system!
Note:
Please familiarise yourself with the
operation of the Mycom CPM 152
before power-up.
1. Switch on the power supply.
2. Manual test of all functions.
3. Adjust cleaning times on built-in
program sequencer or measuring
transmitter CPM 152.
4. Test of automatic functions.
05PC20.CHP
autoclean CPC 20 / CPC 20 Z 5 Installation and start-up
Endress+Hauser 19