Elstat ems100 nexo Manuel utilisateur
ems100
PRODUCT MANUAL Issue 4
Copyright © Elstat Ltd
2014 All Rights Reserved
All information in this document is property of
Elstat Ltd
Commercial use and distribution of the contents
of this publication is not allowed without express
and prior written consent of Elstat Ltd
ems100 Product Manual, Issue 4
www.nexo.com
Page 3
CONTENTS
1. CONTROLLER WITH INTELLIGENCE
1.1 Functionality 5
1.2 User interface 6
1.3 Overall dimensions 7
1.4 Mounting 8
1.5 Electrical connections 9
1.6 Programming port cover 9
1.7 Wiring diagram 10
1.8 Relay ratings 11
1.9 Temperature input ranges 11
1.10 Environmental ratings 11
2. ACCESSORIES
2.1 Temperature sensors 13
2.2 Door switch 15
2.3 Motion sensor 17
2.4 Transformer 19
3. USER GUIDE
3.1 Power-up sequence 21
3.2 Function buttons 21
3.3 Indicators 22
3.4 Display codes 22
3.5 (GDC) Firmware menus 23
3.6 The menu arrangement 24
3.7 Menu access 25
3.8 Test routines (tSt) 25
3.9 Viewing the last three cooler faults witnessed by the controller (FLt) 32
3.10 Half reset (Hr) 33
3.11 Viewing statistics 35
CONTENTS
Product Manual, Issue 4 ems100
www.nexo.com
Page 4
4. TROUBLESHOOTING
4.1 ‘Limp home’ functionality 37
4.2 Door open alarms 37
4.3 Door alarms ‘Limp home’ mode 38
4.4 Not cooling problems 40
4.5 Temperature sensor alarms 41
4.6 Appliance sensor failure 41
4.7 Freeze-up protection (888) 42
4.8 Refrigeration system failure (rSF) alarms 42
4.9 Condenser high temperature (Ht) alarms 44
5. PARAMETERS
5.1 Parameters by function 45
5.2 Parameter validation 46
5.3 Parameters denition 46
6. APPROVALS
6.1 Product Approvals 59
6.2 Bluetooth Approvals 60
7. GLOSSARY OF TERMS
7.1 Acronyms 61
7.2 Controller and accessory terms 61
ems100 Product Manual, Issue 4
www.nexo.com
Page 5
1. CONTROLLER WITH INTELLIGENCE
The Nexo controllers are the rst
truly intelligent refrigeration solution
for the beverage industry that
delivers consumer insights from eld
data to optimize and take complete
control of cold drink marketing.
Elstat’s game-changing Nexo
platform is a powerful tool that
connects drink brands directly to
consumers at the point of sale,
wherever they are in the world, to
create sustainable and protable
relationships.
The energy management system (ems) controllers from Elstat are used in a variety of drinks coolers,
optimising energy savings, without compromising on drinks serving temperature.
The ems100 Nexo controller is designed for applications such as single door coolers, double door coolers
and vending machines.
1.1 Functionality
Feature Description
User and
diagnostic
information
3-digit, 7-segment display that displays the product temperature and other information
such as defrost or teach and alarm conditions. Also push buttons, that enable the end-
users to cancel alarms and service technicians to run test routines.
Product
temperature
An appliance sensor measures temperature of the refrigeration compartment. EMS
controllers use the refrigeration temperature to manage the product temperature.
Refrigeration
system high
temperature alarm
An optional condenser sensor measures the temperature of the refrigeration system.
EMS controllers use the temperature to alert to problems such as blocked condensers.
Motion detection A remote or integrated motion sensor enables EMS controllers to detect activity when
someone moves in front of the cooler.
Door open
detection
A door switch enables EMS controllers to detect cooler activity when someone opens the
cooler doors.
The controllers switch the following cooler components:
Feature Description
Compressor EMS controllers switch the compressor to manage the temperature of the refrigeration
compartment.
Evaporator fan EMS controllers can control the evaporator fan.
Lights EMS controllers can control the cooler lights to save energy.
Product Manual, Issue 4 ems100
www.nexo.com
Page 6
1.2 User interface
All Elstat controllers are made from food grade materials and are safe for internal installation. The
ems100 controllers are available with either an integrated or a remote motion sensor.
Controller with integrated motion detection
(IMD)
Controller with remote motion detection
(RMD)
10
911
1 2 3 4
57
8
6
This variant should always be installed where the
sensor can ‘see’ activity. It is recommended that the
controller is installed externally on the cooler.
This variant of the controller can be installed
internally on the cooler but the remote motion
sensor must be installed where it can ‘see’ activity.
Item LED Indicator Name Function Colour
1Compressor Compressor indicator Green
2Evaporator fan Evaporator fan indicator Green
3Saving temperature
disable
Saving temperature disable
indicator Red
4Motion Motion indicator Red
Item Push Button Name Function
5Set Accept/forward - selects menu options and parameters.
6Defrost Activates a manual defrost
(only applicable if temp is below termination temp).
7Up Scrolls up menus.
Increases parameter values.
8Down Scrolls down menus. Decreases parameter values. Cancels the
rSF, d0 and Ht alarms.
ems100 Product Manual, Issue 4
www.nexo.com
Page 7
Item On display Name Function
9Motion Sensor Detects motion
10 LED Display Displays the current status of the controller
11 Programmable Port Enables upload of parameters using a dongle
1.3 Overall dimensions
The overall dimensions of the controller are shown in the following diagram.
142 mm
127.8 mm
47.8 mm
63 mm
120 mm
41 mm
103 mm
Product Manual, Issue 4 ems100
www.nexo.com
Page 8
1.4 Mounting
ems100 Nexo
controllers are
designed for panel
mounting and are
secured using four
countersunk self-
tapping screws.
The aperture
and screw pitch
dimensions are as
shown.
Note
Mounting controllers vertically may result in water ingress.
In addition, incorrect installation may result in
the following conditions:
`If mounted vertically with the integrated
motion sensor close to the oor, the
motion sensor may not be able to detect
motion eectively.
`If mounted vertically with [parameter
programming port] close to the oor,
water ingress may occur.
`If mounted too close the oor, water
ingress may occur at the mains or line
voltage terminals.
Cable routing to the ems100 controller is critical as water can trace
or follow the cable downwards.
Therefore, immediately prior to the connection to the controller, a
drip loop must be formed in all wiring as shown.
An appropriate level of protection must be given for the eects of
water ingress due to condensation, product spillage, and so on.
Note
Cable routing looms must not be secured to hot pipes or vibrating components. Secure
cable routing looms with clips where ever possible.
121.3 -0.5
0.5
+ mm
41.3 -0.5
0.5
+ mm
24.5 -0.5
0.5
+ mm
24.5 -0.5
0.5
+ mm
64.2 -0.5
0.5
+ mm 64.2 -0.5
0.5
+ mm
ems100 Product Manual, Issue 4
www.nexo.com
Page 9
1.5 Electrical connections
Item Description Connectors
1 Compressor
61 23 4 578 9 10 11
2 Line in
3 Fan(s)
4 Light(s)
5 Product Sensor
6 12VAC
7 Evaporator Sensor
8 Door
9 Condenser Sensor
10 Appliance Sensor
11 Remote Motion Detector
(If applicable)
1.6 Programming port cover
When accessing the programming port on
the controller fascia, remove the rubber
cover and let it hang on the attaching strap.
This will prevent misplacing the port cover.
Note
Do not remove programming port cover fully. Detaching the cover from the controller
fascia can damage the attaching strap.
On completion of controller
programming, ensure that the
programming port cover is replaced
inserting the left edge rst then
securing the other edges in place
moving in clockwise direction.
Product Manual, Issue 4 ems100
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Page 10
1.7 Wiring diagram
Note
To remove the potential for damage occurring to, and the potential for failure of,
the crimped connection on the mating half of terminals 1 to 4 of the ems100 Nexo
controller it is recommended that only right angle insulated 6.3mm tab connectors,
complete with strain relief, are used to terminate these cables. Use of straight
connectors may exert excessive pressure on to that connector.
A - Controller I - Modem interface R - Lights out
B - Appliance sensor J - Motion sensor S - Line in
C - RMD K - 12VAC T - Transformer
D - Evaporator sensor L - Live U - Evaporator fan
E - Door switch N - Neutral V - Lights
F - RJ45 Port M - Stock / product sensor W - Compressor
G - Condenser sensor P - Fan out
H - Display Q - Compressor out
Note
An additional input has been inserted between 12AV and Auxiliary inputs. The order
does vary to Elstat’s ems55adv models.
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