Watson Marlow Pumps 630 Series Installation guide

630 En/EnN Installation, operating, and maintenance manual
m-630en-en-01 1
Contents
1 Declaration of conformity 5
2 Declaration of incorporation 6
3 When you unpack your pump 7
3.1 Unpacking your pump 7
3.2 Packaging disposal 7
3.3 Inspection 7
3.4 Components supplied 7
3.5 Storage 7
4 Information for returning pumps 8
5 Peristaltic pumps - an overview 8
6 Warranty 9
7 Safety notes 10
8 Pump specifications 13
8.1 Specification ratings 13
8.2 Weights 13
8.3 Pumphead options 14
9 Good pump installation practice 15
9.1 General recommendations 15
9.2 Dos and don'ts 16
10 Pump operation 17
10.1 Keypad Layout and Key IDs 17
10.2 Starting and stopping 18
10.3 Using up and down keys 18
10.4 Maximum speed 18
10.5 Change rotation direction 18
11 Connecting to a power supply 19
11.1 Conductor colour coding 20

11.2 Wiring the NEMA module 20
11.3 Earth screening of control cables on NEMAmodule 20
11.4 Ethernet M12 connector screen connection 21
12 Start-up check list 22
13 Control wiring 23
13.1 Pump external interface parameters 24
13.2 Features on the rear of the pump 25
13.3 IP31 Wiring connections 26
13.4 Sensor Wiring - IP31 26
13.5 IP66 Wiring - N Module 30
13.6 Input/output connectors - IP66 33
13.7 Network topology 35
14 Switching the pump on for the first time 36
14.1 Selecting the display language 36
14.2 First-time start-up defaults 38
15 Switching the pump on in subsequent power cycles 39
16 Mode menu 40
17 Manual 41
17.1 START 41
17.2 STOP 41
17.3 INCREASING AND DECREASING FLOW RATE 42
17.4 MAX FUNCTION (Manual mode only) 42
18 Flow calibration 43
18.1 Setting the flow calibration 43
19 EtherNet/IP™ mode 45
19.1 Configure EtherNet/IP™ Settings 45
19.2 EtherNet/IP™mode 49
19.3 Example for http connection between pump and PC (peer-to-peer) 49
19.4 Setting up the PC 50
19.5 Connecting the PC to the pump 51
19.6 Connecting using the web browser 52
19.7 Connecting to a PLC 52
19.8 Pump parameters 56
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20 Sensors 68
20.1 Sensor wiring 68
20.2 Setting up the sensors 69
20.3 Start up delay 73
20.4 Generic Sensors 75
20.5 Flow Sensor Reading 81
21 Main menu 82
21.1 Security settings 84
21.2 General settings 95
22 Help 105
22.1 Help 105
23 Troubleshooting 106
23.1 Error codes 106
23.2 Technical support 107
24 Drive maintenance 108
25 Drive spares 109
26 Pumphead replacement 110
26.1 Pumphead replacement 110
27 Tube replacement 112
27.1 Continuous tubing 112
27.2 Tube elements 113
28 Ordering information 115
28.1 Pump part numbers 115
28.2 Tubing and element part numbers 116
28.3 CIP and SIP procedures 120
28.4 Pumphead spares 121
29 Performance data 125
29.1 620RE, 620RE4 and 620R performance data 125
30 Trademarks 129
31 Disclaimers 130
32 Publication history 131
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Original instructions
The original instructions for this manual have been written in English. Other language versions of this
manual are a translation of the original instructions
4 m-630en-en-01

1 Declaration of conformity
Watson-Marlow Limited
Falmouth
Cornwall
TR11 4RU
England
1. 530 Cased pumps (Models: S, SN, U, UN, Du, DuN, Bp, BpN, En, EnN)
630 Cased pumps (Models: S, SN, U, UN, Du, DuN, Bp, BpN, En, EnN)
730 Cased pumps (Models: SN, UN, DuN, BpN, En, EnN)
2. Manufacturer:
Watson Marlow Ltd
Bickland Water Road
Falmouth
TR11 4RU
UK
3. This declaration of conformity is issued under the sole responsibility of the manufacturer
4. All models and versions of the 530, 630 and 730 series of cased peristaltic pump with all
approved pump heads, tubing and accessories.
5. The object of the declaration described above is in conformity with the relevant Union
harmonisation legislation:
Machinery Directive 2006/42/EC
EMC Directive 2014/30/EC
ROHS Directive 2015/863
6. Harmonised standards used:
BS EN61010-1:2010 third edition Safety requirements for electrical equipment for
measurement, control, and laboratory use Part 1: General requirements
EN61326-1:2013 Electrical equipment for measurement, control and laboratory use – EMC
requirements Part 1: General requirements
BS EN 60529:1992+A2:2013 Degrees of protection provided by enclosures (IP code)
7. Intertek Testing and Certification Ltd, No: 3272281, performed compliance testing to BS EN
61010-1:2010, IEC 61010-1:2010, UL 61010-1:2010 and CAN/CSA C22.2 Bo
61010-1:2010 and issued certification of compliance to these standards.
Signed for and behalf of:
Watson Marlow Ltd
Falmouth, November 2019
Simon Nicholson, Managing Director, Watson-Marlow Limited
EC Declaration of Conformity
m-630en-en-01 5

2 Declaration of incorporation
Watson-Marlow Ltd
Falmouth
Cornwall
TR11 4RU
England
In accordance with the Machinery Directive 2006/42/EC that if this unit is to be installed into a machine
or is to be assembled with other machines for installations, it shall not be put into service until the
relevant machinery hasbeen declared in conformity.
We herebydeclare that:
Peristaltic Pump
Series: 530,630 and 730 cased pumps
the following harmonised standards have been applied and fulfilled for health and safety
requirements:
Safety of Machinery – EN ISO 12100
Safety of Machinery – Electrical Equipment of Machines BS EN 60204-1
Quality Management System – ISO 9001
and the technical documentation is compiled in accordance with Annex VII(B) of the Directive.
We undertake to transmit, in response to a reasoned request by the appropriate national authorities,
relevant information on the partly completed machinery identified above. The method of transmission
shall be by mail or email.
The pump head is incomplete and must not be put into service until the machinery into which it is to be
incorporated has been declared in conformity with the provisions of the Directive.
Person authorised to compile the technical documents:
Nancy Ashburn, Head of Design & Engineering, Watson-Marlow Ltd
Place and date of declaration: Watson-Marlow Ltd, 20.04.2020
Responsible person:
Simon Nicholson, Managing Director, Watson-Marlow Ltd
Declaration of Incorporation
6 m-630en-en-01

3 When you unpack your pump
3.1 Unpacking your pump
Unpack all parts carefully, retaining the packaging until you are sure all components are present and in
good order. Check against the components supplied list, below.
3.2 Packaging disposal
Dispose of packaging materials safely, and in accordance with regulations in your area. The outer carton
is made of corrugated cardboard and can be recycled.
3.3 Inspection
Check that all components are present. Inspect components for damage in transit. If anything is missing
or damaged, contact your distributor immediately.
3.4 Components supplied
630 Components
l630 pump drive unit, fitted with 620R or other pumphead if specified as a pump
lThe designated power cable (attached to the pump drive unit)
lA 630N module providing pump ingress protection to IP66, NEMA 4X. if a EnN.
lNote: the module is attached for transit, but must be removed to allow wiring up, voltage selection
and fuse inspection and then re-affixed before the pump is operated.
lProduct safety information booklet incorporating quick start manual
3.5 Storage
This product has an extended shelf life. However, care should be taken after storage to ensure that all
parts function correctly. Please observe the storage recommendations and use-by dates which apply to
tubing you may wish to bring into service after storage.
m-630en-en-01 7

4 Information for returning pumps
Before returning products, they must be thoroughly cleaned/decontaminated. The declaration
confirming this should be completed and returned to us in advance of the item being shipped.
You are required to complete and return a decontamination declaration stating all fluids that have been
in contact with the equipment being returned to us.
On receipt of the declaration, we will issue a Returns Authorisation Number. We reserve the right to
quarantine or refuse any equipment that is not displaying a Returns Authorisation Number.
Please complete a separate decontamination certificate for each product and use the correct form that
denotes the location you wish to return the equipment to. If you have any queries then please contact us
for further assistance.
.
5 Peristaltic pumps - an overview
Peristaltic pumps are the simplest possible pump, with no valves, seals or glands to clog or corrode. The
fluid contacts only the bore of a tube, eliminating the risk of the pump contaminating the fluid, or the
fluid contaminating the pump. Peristaltic pumps can operate dry without risk.
How they work
A compressible tube is squeezed between a roller and a track on an arc of a circle, creating a seal at the
point of contact. As the roller advances along the tube, the seal also advances. After the roller has
passed, the tube returns to its original shape, creating a partial vacuum which is filled by fluid drawn
from the inlet port.
Before the roller reaches the end of the track, a second roller compresses the tube at the start of the
track, isolating a packet of fluid between the compression points. As the first roller leaves the track, the
second continues to advance, expelling the packet of fluid through the pump’s discharge port. At the
same time, a new partial vacuum is created behind the second roller into which more fluid is drawn from
the inlet port.
Backflow and siphoning do not occur, and the pump effectively seals the tube when it is inactive. No
valves are needed.
The principle may be demonstrated by squeezing a soft tube between thumb and finger and sliding it
along: fluid is expelled from one end of the tube while more is drawn in at the other.
Animal digestive tracts function in a similar way.
Suitable applications
Peristaltic pumping is ideal for most fluids, including viscous, shear-sensitive, corrosive and abrasive
fluids, and those containing suspended solids. They are especially useful for pumping operations where
hygiene is important.
Peristaltic pumps operate on the positive displacement principle. They are particularly suitable for
metering, dosing and dispensing applications. Pumps are easy to install, simple to operate and
inexpensive to maintain.
8 m-630en-en-01

6 Warranty
Watson-Marlow Ltd ("Watson-Marlow") warrants this product to be free from defects in materials and workmanship for
five years from the date of shipment, under normal use and service.
Watson-Marlow's sole responsibility and the customer's exclusive remedy for any claim arising out of the purchase of
any product from Watson-Marlow is, at Watson-Marlow's option: repair, replacement or credit, where applicable.
Unless otherwise agreed in writing, the foregoing warranty is limited to the country in which the product is sold.
No employee, agent or representative of Watson- Marlow has the authority to bind Watson- Marlow to any warranty
other than the foregoing unless in writing and signed by a director of Watson- Marlow. Watson- Marlow makes no
warranty of the fitness of its products for a particular purpose.
In no event:
i. shall the cost of the customer's exclusive remedy exceed the purchase price of the product;
ii. shall Watson- Marlow be liable for any special, indirect, incidental, consequential, or exemplary damages,
however arising, even if Watson-Marlow has been advised of the possibility of such damages.
Watson-Marlow shall not be liable for any loss, damage, or expense directly or indirectly related to or arising out of the
use of its products, including damage or injury caused to other products, machinery, buildings, or property. Watson-
Marlow shall not be liable for consequential damages, including without limitation, lost profits, loss of time,
inconvenience, loss of product pumped, and loss of production.
This warranty does not obligate Watson- Marlow to bear any costs of removal, installation, transportation, or other
charges which may arise in connection with a warranty claim.
Watson-Marlow shall not be responsible for shipping damage of returned items.
Conditions
oProducts must be returned by pre-arrangement to Watson-Marlow, or a Watson-Marlow approved
service centre.
oAll repairs or modifications must have been made by Watson- Marlow Ltd, or a Watson- Marlow
approved service centre or with the express permission in writing of Watson-Marlow, signed by a
manager or director of Watson-Marlow.
oAny remote control or system connections must be made in accordance to Watson- Marlow
recommendations.
oAll PROFIBUS systems must be installed or certified by a PROFIBUS approved installation engineer.
oAll EtherNet/IP™ systems must be installed or certified by a suitably trained installation engineer.
Exceptions
oConsumable items including tubing and pumping elements are excluded.
oPumphead rollers are excluded.
oRepairs or service necessitated by normal wear and tear or by lack of reasonable and proper
maintenance are excluded.
oProducts which, in the judgement of Watson-Marlow, have been abused, misused, or subject to
malicious or accidental damage or neglect are excluded.
oFailure caused by electrical surge is excluded.
oFailure caused by incorrect or sub-standard system wiring is excluded.
oDamage by chemical attack is excluded.
oAncillaries such as leak detectors are excluded.
oFailure caused by UV light or direct sunlight.
oAny attempt to disassemble a Watson-Marlow product will invalidate the product warranty.
Watson-Marlow reserves the right to amend these terms and conditions at any time.
m-630en-en-01 9

7 Safety notes
This safety information should be used in conjunction with the rest of this operating manual.
In the interests of safety, this pump and pumphead should only be used by competent, suitably trained
personnel after they have read and understood the manual and considered any hazard involved. If the
pump is used in a manner not specified by Watson-Marlow Ltd, the protection provided by the pump
may be impaired. Any person who is involved in the installation or maintenance of this equipment
should be fully competent to carry out the work. This person should also be familiar with all relevant
health and safety protocols, regulations and guidance.
This symbol, used on the pump and in the manual, means: An appropriate
safety instruction should be followed or caution to a potential hazard exists..
This symbol, used on the pump and in the manual, means: Do not allow
fingers to contact moving parts.
This symbol, used on the pump and in the manual, means: Caution, hot
surface.
This symbol, used on the pump and in the manual, means: Caution, risk of
electric shock.
This symbol, used on the pump and in the manual, means: Personal
Protective Equipment (PPE) must be worn.
This symbol, used on the pump and in the manual, means: Recycle this
product under the terms of the EU Waste Electrical and Electronic Equipment
(WEEE) Directive.
Within the 630 and 730 pumps there are thermal fuses which self-reset; if they
trip, error code "Err17 Under Voltage" is displayed.
10 m-630en-en-01

Fundamental work with regard to lifting, transportation, installation,
starting-up, maintenance and repair should be performed by qualified
personnel only. The unit must be isolated from mains power while work is
being carried out. The motor must be secured against accidental start-up.
Some pumps weigh more than 18kg (the exact weight depends on the model
and pumphead - see on the pump). Lifting should be performed according to
standard Health and Safety guidelines. Finger recesses are built into the sides
of the lower shell for convenience in lifting; in addition, the pump can
conveniently be lifted by grasping the pumphead and (where fitted) the 'N'
module at the rear of the pump.
There is a user-replaceable fuse located at the rear of the pump. Some
country specific mains plugs contain an additional replaceable fuse. Fuses
must be replaced with parts with the same rating.
There are no user-serviceable fuses or parts inside this pump.
Note - the mains power supply cable is supplied hardwired into the pump and
is not customer replaceable.
Observe voltage selector switch setting for your region
IP66 pumps are supplied with a mains plug. The gland at the NEMA Module
end of the cable is IP66 rated. The mains plug at the opposite end of the
cable is NOT IP66 rated. It is the user's responsibility to ensure that the
connection to the mains supply is IP66 rated.
This pump must be used only for its intended purpose.
The pump must be accessible at all times to facilitate operation and maintenance. Access points must not
be obstructed or blocked. Do not fit any devices to the drive unit other than those tested and approved
by Watson-Marlow. Doing so could lead to injury to persons or damage to property for which no liability
can be accepted.
The pump's main plug is the disconnecting device (for isolating the motor drive from the mains supply
in an emergency). Do not position the pump so that it is difficult to disconnect the mains plug.
m-630en-en-01 11

If hazardous fluids are to be pumped, safety procedures specific to the
particular fluid and application must be put in place to protect against injury
to persons.
This product does not comply with the ATEX directive and must not be used in
explosive atmospheres.
Ensure the chemicals to be pumped are compatible with the pumphead,
lubricant (where applicable), tubing, pipework and fittings to be used with
the pump. Please refer to the chemical compatibility guide which can be
found at: www.wmftg.com/chemical. If you need to use the pump with any
other chemical please contact Watson-Marlow to confirm compatibility.
There are moving parts inside the pumphead. Before opening the tool-
unlockable guard or tool-unlockable track, ensure that the following safety
directions are followed:
1. Ensure the pump is isolated from the mains power.
2. Ensure that there is no pressure in the pipeline.
3. If a tube failure has occurred, ensure that any fluid in the pumphead
has been allowed to drain to a suitable vessel, container or drain.
4. Ensure that appropriate Personal Protective Equipment (PPE) is worn.
Primary operator protection from rotating parts of the pump is provided by
the pumphead safeguard. Note that safeguards differ, depending on the type
of pumphead. See the pumphead section of the manual.
12 m-630en-en-01

8 Pump specifications
8.1 Specification ratings
Operating temperature 5C to 40C (41F to 104F)
Storage temperature 630: -25C to 65C (-13F to 149F)
Humidity (non-condensing) 80% up to 31C (88F) decreasing linearly to 50% at 40C (104F)
Maximum altitude 2000m (6560ft)
Power Rating 630: 250VA
Supply voltage 100-120V/200-240V 50/60Hz 1pH (Subject to regional cord sets and
supply)
Maximum voltage fluctuation +/-10% of nominal voltage. A well regulated electrical mains supply
is required along with cable connections conforming to the best
practice of noise immunity.
Full load current 630: <1.1A @ 230V; <2.2A @ 115V
Fuse rating T2.5AH250V (5x20mm)
Installation category
(overvoltage category)
II
Pollution degree 2
IP 630: IP31 to BS EN 60529, if supplied with N module then IP66 to
BS EN 60529. Equivalent to NEMA 4X to NEMA 250 *(indoor use -
protect from prolonged UV exposure)
dB rating 630: < 70dB (A) @ 1m
Control ratio 630: 0.1-265rpm (2650:1)
Maximum speed 630: 265rpm
8.2 Weights
630 Drive only + 620R, 620RE + 620RE4 + 620L, 620LG
IP31 16.5kg 36lb 6oz 19.6kg 43lb 3oz 20.1kg 44lb 5oz 24.3kg 53lb 9oz
IP66 17.4kg 38lb 8oz 20.5kg 45lb 3oz 21.0kg 46lb 5oz 25.2kg 55lb 9oz
m-630en-en-01 13

Some pumps weigh more than 18kg (the exact weight depends on the model
and pumphead - see on the pump). Lifting should be performed according to
standard Health and Safety guidelines. Finger recesses are built into the sides
of the lower shell for convenience in lifting; in addition, the pump can
conveniently be lifted by grasping the pumphead and (where fitted) the
module at the rear of the pump.
8.3 Pumphead options
630 pump range
620R, 620RE, 620L:
14 m-630en-en-01

9 Good pump installation practice
9.1 General recommendations
It is recommended that the pump is sited on a flat, horizontal, rigid surface, free from excessive
vibration, to ensure the correct lubrication of the gearbox and correct pumphead operation. Allow a
free flow of air around the pump to ensure that heat can be dissipated. Ensure that the ambient
temperature around the pump does not exceed the recommended maximum operating temperature.
The STOP key on pumps supplied with a keypad will always stop the pump. However, it is recommended
that a suitable local emergency stop device is fitted into the mains supply to the pump.
Do not stack the pumps more than the recommended maximum number. When the pumps are
stacked, ensure that the ambient temperature around all the pumps in the stack does not exceed the
recommended maximum operating temperature.
The pump may be set up so that the direction of rotor rotation is clockwise or counter- clockwise,
whichever is convenient.
Please note, however, that for some pumpheads the tube life will be greater if the rotor rotates
clockwise; and that performance against pressure will be maximised if the rotor rotates counter-
clockwise. To achieve pressure in some pumpheads the pump must rotate counter-clockwise.
Optimum
tube life
Maximum
pressure
Peristaltic pumps are self-priming and self-sealing against backflow. No valves are required in inlet or
discharge line, except those specified as below.
Users must fit a non-return valve between the pump and the discharge
pipework to avoid the sudden release of pressurised fluid in the event of a
pumphead or tube failure. This shall be fitted immediately after the
discharge of the pump.
Valves in the process flow must be opened before the pump operates. Users are advised to fit a pressure
relief device between the pump and any valve on the discharge side of the pump to protect against
damage caused by accidental operation with the discharge valve closed.
m-630en-en-01 15

9.2 Dos and don'ts
lDo not build a pump into a tight location without adequate airflow around the pump.
lDo keep delivery and suction tubes as short and direct as possible - though ideally not shorter than
one metre - and follow the straightest route. Use bends of large radius: at least four times the tubing
diameter. Ensure that connecting pipework and fittings are suitably rated to handle the predicted
pipeline pressure. Avoid pipe reducers and lengths of smaller bore tubing than the pumphead
section, particularly in pipelines on the suction side. Any valves in the pipeline must not restrict the
flow. Any valves in the flow line must be open when the pump is running.
lDo ensure that on longer tube runs at least one metre of smooth bore, flexible tubing is connected
to the inlet and discharge port of the pumphead to help to minimise impulse losses and pulsation in
the pipeline. This is especially important with viscous fluids and when connecting to rigid pipework.
lDo use suction and delivery pipes equal to or larger than the tubing diameter bore. When pumping
viscous fluids use pipe runs with a bore several times larger than the pump tube.
lDo site the pump at or just below the level of the fluid to be pumped if possible. This will ensure
flooded suction and maximum pumping efficiency.
lDo run at slow speed when pumping viscous fluids. Flooded suction will enhance pumping
performance, particularly for materials of a viscous nature.
lDo recalibrate after changing tubing, fluid or any connecting pipework. It is also recommended that
the pump is recalibrated periodically to maintain accuracy.
lDo not pump any chemical not compatible with the tube or pumphead.
lDo not run the pump with no tube or element fitted to the pumphead.
lDo not strap the control and mains cables together.
lDo ensure if your product has an N module, that the module is fitted with the seals intact and
properly located. Ensure that the holes for the cable glands are properly sealed to maintain the
IP/NEMA rating.
Tube selection: The chemical compatibility guide published on the Watson Marlow website is for
guidance. If in any doubt about the compatibility of a tube material and the duty fluid, request a
Watson-Marlow tube sample card for immersion trials.
When using Marprene or Bioprene continuous tubing, do re-tension the tube after the first 30 minutes
of running.
16 m-630en-en-01

10 Pump operation
10.1 Keypad Layout and Key IDs
Change value /
move selection bar
Home
Colour TFT display
Mode
Direction of ow
Stop
Max
Function keys
Start
HOME key
When the HOME key is pressed it will return the user to the last known operating mode. If modifying
pump settings when the HOME key is pressed, it will disregard any setting changes and return you to the
last known operating mode.
FUNCTION keys
FUNCTION keys, when pressed, will perform the function displayed on the screen directly above the
relevant function key.
∧and ∨keys
These keys are used to change the programmable values within the pump. These keys are also used to
move the selection bar up and down in the menus.
MODE key
To change modes or mode settings, press the MODE key. The MODE key can be pressed at any time to
enter the mode menu. If modifying pump settings when the MODE key is pressed, it will disregard any
setting changes and return you to the MODE menu.
m-630en-en-01 17

10.2 Starting and stopping
10.3 Using up and down keys
10.4 Maximum speed
10.5 Change rotation direction
18 m-630en-en-01

11 Connecting to a power supply
A well regulated electrical mains supply is required along with cable connections conforming to the best
practice of noise immunity. It is not recommended to site these drives alongside electrical devices that
may generate mains-borne noise, for example 3-phase contactors and inductive heaters.
Set the voltage selector to 115V for 100-120V 50/60Hz supplies or 230V for 200-
240V 50/60Hz supplies. Always check the voltage selector switch before
connecting to the mains supply or the pump will be damaged.
Make suitable connection to an earthed single-phase mains electricity supply.
If the pump type is one with an 'N' module, the voltage selector is not visible while the module
is in place. It is mounted in the switch plate at the rear of the pump, protected from water by
the 'N' module. The module must be removed to allow access to the switch plate. Do not switch
the pump on unless you have checked that it is set to suit your power supply by removing the
module and inspecting the switch and then refitting the module.
1. 2. 3.
4.
We recommend using a commercially available supply voltage surge
suppression where there is excessive electrical noise.
Ensure that all power supply cables are adequately rated for the equipment.
Only use with supplied power cable.
The pump must be positioned so that the disconnection device is easily
accessible when the equipment is in use.
IP66 pumps are supplied with a mains plug. The gland at the NEMA Module
end of the cable is IP66 rated. The mains plug at the opposite end of the
cable is NOT IP66 rated. It is your responsibility to ensure that the connection
to the mains supply is IP66 rated.
m-630en-en-01 19

11.1 Conductor colour coding
Conductor type European colour North American colour
Line Brown Black
Neutral Blue White
Ground Green/Yellow Green
11.2 Wiring the NEMA module
EtherNet/IP™ pumps
The NEMA 4X modules fitted to 530, 630 and 730 En cased pumps have two pairs of wiring ports. Two
M16 ports are provided, together with glands to seal circular cross-section cables ranging in diameter
from 4mm to 10mm (5/32in to 13/32in. EtherNet connection is via the two M12 connectors mounted to
the rear of the NEMA module.
11.3 Earth screening of control cables on NEMAmodule
1
2
20 m-630en-en-01