BUSCH PLUS Master Control User manual

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Instruction Manual
PLUS Master Control
R5 RA 0760 A PLUS
0870232791/-_en / Original instructions / Modifications reserved 16/09/2021

Table of Contents
2 / 44 Instruction Manual PLUS Master Control R5 PLUS_EN_en
Table of Contents
1 Safety .......................................................................................................................................3
2 Introduction..............................................................................................................................4
3 Bottom Bar ...............................................................................................................................4
4 Role and User ...........................................................................................................................6
5 Installation and Commissioning ...............................................................................................7
5.1 Vacuum Pumps Installation .............................................................................................. 7
5.2 Ethernet Network............................................................................................................. 9
5.3 Setting of the PLUS Vacuum Pumps................................................................................. 11
5.4 Setting of the PLUS Master Control.................................................................................. 14
6 In Operation .............................................................................................................................16
6.1 System Activation............................................................................................................. 16
6.2 Week Planner................................................................................................................... 18
6.3 Ecomode .......................................................................................................................... 19
6.4 Warm-up / Cool-down Modes......................................................................................... 20
6.5 Optional Inlet Valve Control............................................................................................. 22
6.6 Vacuum pumps control .................................................................................................... 24
6.7 Trend ............................................................................................................................... 26
6.8 Dysfunction...................................................................................................................... 27
6.8.1 Warnings / Alarms ................................................................................................ 27
6.8.2 Warnings / Alarms Thresholds............................................................................... 28
6.8.3 Modbus Communication Loss ............................................................................... 28
6.9 Stop the System ............................................................................................................... 29
7 Settings.....................................................................................................................................31
7.1 PLUS Master Control Settings .......................................................................................... 31
7.1.1 Settings Screen 1 ...................................................................................................31
7.1.2 Settings Screen 2 ...................................................................................................32
7.1.3 Settings Screen 3 ...................................................................................................33
7.1.4 Settings Screen 4 ...................................................................................................33
7.2 Local Settings of the PLUS Pumps .................................................................................... 34
8 Maintenance.............................................................................................................................35
9 Troubleshooting .......................................................................................................................37
10 Data Logger..............................................................................................................................40

Safety | 1
Instruction Manual PLUS Master Control R5 PLUS_EN_en 3 / 44
1 Safety
This supplement for installation shall give further information concerning individual set-
ting or data analysis to experienced and trained users. Prior to handling the product, this
document should be read and understood. If anything needs to be clarified please con-
tact your Busch representative.
Read carefully before use and keep for future reference.
This document remains valid as long as the customer does not change anything on the
product.
The product is intended for industrial use. It shall be handled only by qualified personnel.
The product has been designed and manufactured according to state-of-the-art meth-
ods.
Nevertheless, residual risks may remain. This supplement for installation highlights po-
tential hazards where appropriate. Safety notes and warning messages are tagged with
one of the keywords DANGER, WARNING, CAUTION and NOTICE as follows:
DANGER
... indicates an imminent dangerous situation that will result in death or serious injuries if
not prevented.
WARNING
... indicates a potentially dangerous situation that could result in death or serious injuries.
CAUTION
... indicates a potentially dangerous situation that could result in minor injuries.
NOTICE
... indicates a potentially dangerous situation that could result in damage to property.
NOTE
... indicates helpful tips and recommendations, as well as information for efficient and
trouble-free operation.

2 | Introduction
4 / 44 Instruction Manual PLUS Master Control R5 PLUS_EN_en
2 Introduction
PLUS Master Control
The PLUS Master Control makes it possible to interconnect several PLUS units and makes
them work together optimally from the point of view of pressure regulation, overall
power consumption and operating hours.
It is thus easy to create a vacuum system from several PLUS vacuum pumps without the
need for an additional control cabinet.
NOTICE
Installation, settings and operation of the pumps in PLUS Master control mode.
This mode requires the PLUS vacuum pumps to be interconnected with each other via
an Ethernet connection. A total number of 2 to 6 PLUS pumps is supported.
NOTE
Instruction manual for the PLUS Master Control.
This document is only delivered on request and intended for "Role 2" and “Role 3” peo-
ple, see Role and User [►6].
It contains additional information about advanced settings for the use of the “PLUS
Master control” function.
When mentioned, please refer to the specific document “Pump Control Instructions, art.
no. 0870213261”.
Please also refer to the original instruction manual of the corresponding machine which
content remains valid.
NOTE
Illustrations
In this instruction manual the illustrations may differ from the machine appearance.
3 Bottom Bar
The bottom bar provides different pieces of information, in particular the machine state
and warning/alarm status.
?
01.08.2020 - 15:00
OFF
RUNNING
WARNING
ALARM
Machine state
Warnings and alarms
status Date and hour Screen brightness
Help
PLUS Master Control icon
PLUS Vacuum pump icon
The PLUS Master Control interface is accessible on the Master pump control touchscreen
(see Installation and Commissioning [►7] / Setting of the PLUS Vacuum Pumps
[►11]).
On this particular pump, which can be freely selected among all pumps in the system, an
additional icon in the status bar toggles between the “PLUS Vacuum pump” interface
and the “PLUS Master Control” interface.

Bottom Bar | 3
Instruction Manual PLUS Master Control R5 PLUS_EN_en 5 / 44
• When the “PLUS Vacuum pump” control interface is displayed, the “PLUS Master
Control” icon is visible.
>
>
>
01.08.2020 - 15:00 ?
HOME
MAIN
OPERATIONS
MONITORING
MAINTENANCE SYSTEM
ALARM
Inlet pressure
< 5 mbar
Rotation speed
0 %
Operating mode
Speed control
Control mode
Local Manual
4000 h
Next service in
60 Hz
Target speed
OFF
PLUS Master Control icon
• When the “PLUS Master Control” interface is displayed, the “PLUS Vacuum pump”
icon is visible.
01.08.2020 - 15:00 ?
HOME OPERATIONS TREND SETTINGS
Instant absorbed power
Inlet pressure Target pressure
17.0 kW
20 mbar
< 5 mbar
Run
PLUS Master regulation
Running
70%
VP1 VP2 VP3 VP4 VP6VP5
Running
70%
Running
70%
Auto
0%
Auto
0% N/A
OFF
PLUS Vacuum pump icon
• Press on the icon to switch from one control interface to the other.

4 | Role and User
6 / 44 Instruction Manual PLUS Master Control R5 PLUS_EN_en
4 Role and User
Three roles of user rights are predefined in the system:
– Role 1 ► Operator
This role is intended for machine operators to control the machine (limited rights) or
monitor operating values. It does not require any password.
– Role 2 ► Installation/Maintenance technician
This role is intended for installation/maintenance technicians to configure the machine
according to the application. The password for this role can be found in the separate
sheet attached to this instruction manual and allows an access to the following features:
– change operating mode,
– reset hours before the next service,
– set the remote control and monitoring parameters, refer to the specific document
"Pump Control Instructions, art. no.: 0870213261".
– Role 3 ► Busch Service
Only authorized personnel from Busch Service have this level of access rights.
NOTE
In case of any questions related to the machine settings:
• Please contact Busch Service.
When a password is required, the display shows this screen:
Password
CANCEL
***
SAVE
• Press on the three stars.
• Fill the correct password in the number pad according to your access right.
• Save it.
• From now on, the specific rights are open for a limited period ► delay of 5 minutes.

Installation and Commissioning | 5
Instruction Manual PLUS Master Control R5 PLUS_EN_en 7 / 44
5 Installation and Commissioning
5.1 Vacuum Pumps Installation
NOTICE
Installation and electrical connection.
Risk of damage to the machine!
• For the installation and electrical connection of each vacuum pump in the vacuum sys-
tem, please refer to the instruction manual(s) of the respective pump(s).
WARNING
Vacuum line.
Risk of severe injury!
Risk of damage to the machines and the system!
• All PLUS vacuum pumps must be connected on the suction side to a common piping
line. The piping must be sized (diameter, length) according to the total capacity of the
vacuum system and the specificities of the process. Contact your Busch representative
for more information.
Vacuum line*
*not included in the scope of delivery of the vacuum pumps
External Pressure Sensor
Optionally, it is possible to control the system from the signal of an external pressure
sensor (not included in the scope of delivery of the vacuum pump), installed on a vacu-
um tank for example. In this case this sensor must be connected to the PLUS Master
pump. For the electrical connection and setting of the sensor, refer to the instruction
manual(s) of the respective pump(s).
NOTE
Contact Busch for more information.

5 | Installation and Commissioning
8 / 44 Instruction Manual PLUS Master Control R5 PLUS_EN_en
Isolation Valves
Optionally, isolation valves (not included in the scope of delivery of the vacuum pump)
can also be installed at the suction side of each pump to isolate them individually from
the process. In this case, the valves can be directly controlled by the PLUS Master Con-
trol.
NOTE
Contact Busch for more information.
Vacuum line*
*not included in the scope of delivery of the vacuum pumps
Isolation valve*
Vessel*
(vacuum
tank)
External pressure sensor*
Cable gland
NOTE
Installation of isolation valves.
The installation of controlled isolation valves at the suction side of the vacuum pumps
requires:
• the installation of an external pressure sensor located upstream of the valves, so that
the customer's process pressure information is known to the control system,
• the connection of the control signal of each valve to the control unit of the pump on
which it is mounted, to allow automatic actuation by the system.
ðFor more information, refer to the instruction manual(s) of the respective pump(s).
• Busch recommends the installation of an isolation valve in order to prevent the
machine from turning backwards.
• Busch recommends the installation of an isolation valve in order to prevent the oil
from flowing back to the vacuum system.
• Busch recommends the installation of an isolation valve in order to prevent the
process gases and debris flowing back to the vacuum system.

Installation and Commissioning | 5
Instruction Manual PLUS Master Control R5 PLUS_EN_en 9 / 44
5.2 Ethernet Network
DANGER
Live wires.
Risk of electrical shock.
• Electrical installation work must only be executed by qualified personnel.
• Install the Ethernet switch (not included in the scope of delivery of the vacuum
pumps) and supply it with electricity.
• Two configurations are possible:
– The Ethernet switch can be installed inside the Master pump and be powered
with 24V DC from the terminal board.
Or
– The Ethernet switch can be installed directly in the utility room and powered in-
dependently. This type of installation is recommended because it facilitates the
substitution of the Master pump in case of maintenance requiring the power
supply to the Master pump to be shut down.
• Connect all the PLUS pumps in the system to the Ethernet switch using ethernet ca-
bles (not included in the scope of delivery of the vacuum pumps).
12345678
Ethernet switch*
Ethernet cables*
*not included in the scope of delivery of the vacuum pumps
NOTE
Recommendation and guidelines about hardware and installation of the Ethernet switch
can be found in the Schematics T579234654 and T579234587.
• Use the LAN ports located on the right side of the control cabinets of the PLUS
pumps. For pumps with sound reduction enclosure, route the cable through one of
the two holes provided for this purpose, on the upper side or on the lower left side at
the back of the cabinet, using the cable glands provided.

5 | Installation and Commissioning
10 / 44 Instruction Manual PLUS Master Control R5 PLUS_EN_en
2
¼
2x
3
1
12345678
Power supply
1~ 110/230V 50/60Hz
or 24V DC
Quarter turn key
(delivered loose)
Remove central
front cover
LAN Port
Ethernet Switch*
*not included in the scope of delivery of the vacuum pumps
Ethernet cable*
Cable gland
• Refer to the chapter “Ethernet Settings” in the specific document “Pump Control In-
structions, art.0870213261” to set the ethernet parameters in the control interface of
each PLUS vacuum unit.
• A different IP address must be set for each vacuum unit.
192.168.0.22 192.168.0.23 192.168.0.27192.168.0.24
HOME
SETTINGS
OPERATIONS
CONTACT
MAINTENANCE SYSTEM
MODEL ETHERNET
Off
Ethernet settings
Current IP address
192 . 168 . 0 . 22 0 . 0 . 0 . 0
New IP address
Change settings
0 . 0 . 0 . 0
New subnet maskCurrent subnet mask
0 . 0 . 0 . 0
New gatewayCurrent gateway
255 . 255 . 255 . 0
192 . 168 . 0 . 1
/!\ For a modification of the IP address,
an active Ethernet connection is necessary.

Installation and Commissioning | 5
Instruction Manual PLUS Master Control R5 PLUS_EN_en 11 / 44
5.3 Setting of the PLUS Vacuum Pumps
The PLUS Master Control function must be activated in each of the PLUS vacuum pumps
in the system for the PLUS Master Control to operate.
• Go to “SYSTEM” > “SETTINGS”.
>
>
>
>
>
HOME
SETTINGS
OPERATIONS
CONTACT
MAINTENANCE SYSTEM
MODEL
Date Language
Time Units
mbar
Warnings and alarms thresholds
°C
English01 / 08 / 2020
13 : 48
ETHERNET
Advanced settings
• Press on “Advanced Settings”.
• Enter the password ► Role 3 for visualization and/or modification, see Role and User
[►6].
• Access to the third screen.
HOME
SETTINGS
OPERATIONS
CONTACT
MAINTENANCE SYSTEM
MODEL
Vacuum pump model
ETHERNET
RA 0760 A PLUS
NEXT
Oil type
PREVIOUS
Cooling type
Synthetic Oil Water cooling
PLUS Master control
On
• Switch on the «PLUS Master control» function in the control interface of all PLUS
pumps in the system.
ðFor further information, refer to the chapter “Advanced Settings” in the specific doc-
ument “Pump Control Instructions, art.0870213261”.

5 | Installation and Commissioning
12 / 44 Instruction Manual PLUS Master Control R5 PLUS_EN_en
• Then define one of the vacuum pumps as the “PLUS Master” and the other pumps as
“PLUS Controlled” pumps, in the control mode menu of each pump. The “PLUS Mas-
ter Control” interface will be displayed on the screen of the Master pump, see Bottom
Bar [►4].
In the control interface of the Master vacuum unit:
• Go to “OPERATIONS” > “MODE”.
• Access to the third screen.
PREVIOUS
HOME
MODE
OPERATIONS
PARAMETERS
MAINTENANCE SYSTEM
WEEK PLANNER
Control mode
Manual Auto
Modbus control
Start / Stop
Local
Remote Analog speed control
Digital speed control
Plus Master Plus Controlled
• Switch to « Remote / PLUS Master », password required ► Role 2, see Role and User
[►6].
ðFor further information, refer to the chapter “Remote Control” in the specific docu-
ment “Pump Control Instructions, art.0870213261”.
• A new icon appears in the bottom status bar of the user interface. This icon is used to
toggle between the "Home" menus of the pump control interface and the system
control interface display.
01.08.2020 - 15:00 ?
01.08.2020 - 15:00 ?
OFF
OFF
PLUS Master Control icon
(appears when the PLUS Vacuum Pump control interface is displayed)
PLUS Vacuum Pump icon
(appears when the PLUS Master control interface is displayed)

Installation and Commissioning | 5
Instruction Manual PLUS Master Control R5 PLUS_EN_en 13 / 44
NOTICE
PLUS Master pump.
Only one pump should be declared as “PLUS Master”, the other PLUS pumps in the
system should be defined as “PLUS Controlled” pumps.
• Any pump can be chosen as “PLUS Master”. As the control interface of the PLUS sys-
tem appears only on the touchscreen of the Master pump, it is advisable to select the
pump that is most easily accessible.
In the control interface of the other vacuum units:
• Go to “OPERATIONS” > “MODE”.
• Access to the third screen.
PREVIOUS
HOME
MODE
OPERATIONS
PARAMETERS
MAINTENANCE SYSTEM
WEEK PLANNER
Control mode
Manual Auto
Modbus control
Start / Stop
Local
Remote Analog speed control
Digital speed control
Plus Master Plus Controlled
• Switch to « Remote / PLUS Controlled », password required ► Role 2, see Role and
User [►6].
ðFor further information, refer to the chapter “Remote Control” in the specific docu-
ment “Pump Control Instructions, art.0870213261”.
NOTICE
PLUS Controlled pumps.
All vacuum pumps, except the “PLUS Master” pump, must be declared as “PLUS Con-
trolled” pumps in a PLUS system.
• Any pump can be chosen as “PLUS Master”. As the control interface of the PLUS sys-
tem appears only on the touchscreen of the Master pump, it is advisable to select the
pump that is most easily accessible.

5 | Installation and Commissioning
14 / 44 Instruction Manual PLUS Master Control R5 PLUS_EN_en
5.4 Setting of the PLUS Master Control
Once all the PLUS vacuum pumps have been configured, the PLUS Master Control sys-
tem itself must be configured to complete the installation.
• In the control interface of the Master pump, press on the PLUS Master Control icon in
the status bottom bar to display the PLUS Master Control interface, see Bottom Bar
[►4].
• Go to "SETTINGS".
• Access to the third screen.
HOME OPERATIONS TREND SETTINGS
NEXTPREVIOUS
Ethernet settings VP1
192 . 168 . 0 . 22
MasterIP address
Ethernet settings VP3
192 . 168 . 0 . 24
MasterIP address
Ethernet settings VP5
192 . 168 . 0 . 26
MasterIP address
Ethernet settings VP4
192 . 168 . 0 . 25
MasterIP address
Ethernet settings VP2
192 . 168 . 0 . 23
MasterIP address
Ethernet settings VP6
000 . 000 . 0 . 00
MasterIP address
• Enter the IP addresses of all the PLUS vacuum pumps, as defined in the Ethernet set-
tings menu of each pump, by pressing in the address fields highlighted in dark gray,
password required ► Role 2, see Role and User [►6].
• Define one of the PLUS vacuum pumps as the Master pump by checking the "Mas-
ter" button for this pump. The button is displayed in orange when the pump is select-
ed.
NOTE
When Modbus communication is established between the PLUS pumps and the PLUS
Master Control system, the communication status LED are displayed in green in the Eth-
ernet settings menu.
If they are displayed in red, communication is not established.
• In this case, check the Ethernet settings in the control interface of the corresponding
pump(s) and acknowledge alarms related to communication if any. Refer to the Warn-
ing/Alarm Acknowledgment procedure described in the instruction manual(s) of the
respective pump(s).
Then activate all PLUS vacuum pumps to be integrated into the system in the PLUS Mas-
ter Control interface.
• Go to "OPERATIONS > PUMPS".

Installation and Commissioning | 5
Instruction Manual PLUS Master Control R5 PLUS_EN_en 15 / 44
• In the page specific to each of the PLUS pumps in the system (VP1, VP2,...), switch
the pump to the “Auto” mode, password required ► Role 2, see Role and User [►6].
HOME OPERATIONS TREND SETTINGS
Running hours
15792 h
RA 0760 A PLUS
Master
Auto
0%
VP1 VP2 VP3 VP4 VP6VP5
VP1
Next service
2340 h
Serial number
CHM120400012 Disabled
Auto
PUMPS ECOMODE WEEK PLANNER PARAMETERS
NEXTPREVIOUS
Once Ethernet communication is established and the pumps are set to “Auto” mode, the
setting of the PLUS Master Control system is completed.
All vacuum pumps in the system and their status are displayed in the main screen of the
PLUS Master Control interface. The PLUS pumps in “Auto” status are integrated into the
system and ready for operation. The vacuum pumps with “N/A” status are not parame-
terized, and correspond to pumps that can be added to the system at a later stage in
case of extension.
?
01.08.2020 - 15:00
HOME OPERATIONS TREND SETTINGS
Instant absorbed power
Inlet pressure Target pressure
17.0 kW
50 mbar
49 mbar
PLUS Master regulation
VP1 VP2 VP3 VP4 VP6VP5
Auto
0%
Auto
0% N/A
RUNNING
Stop
Auto
0%
Auto
0%
Auto
0%

6 | In Operation
16 / 44 Instruction Manual PLUS Master Control R5 PLUS_EN_en
NOTE
If one or more pumps are in “Auto” mode and the button indicating the pump name
(VP1, VP2,...) under the pump symbol flashes.
This indicates a communication problem.
• In this case, check the Ethernet settings in the control interface of the corresponding
pump(s) and acknowledge alarms related to communication if any. Refer to the Warn-
ing/Alarm Acknowledgment procedure described in the instruction manual(s) of the
respective pump(s).
6 In Operation
CAUTION
During operation the surface of the suction and exhaust connections may reach temper-
atures of more than 70°C.
Risk of burns!
• Avoid contact with these surfaces during and directly after operation.
NOTE
In the following CAUTION message(s), the term “machine” refers to each of the PLUS
pumps integrated into the system.
CAUTION
Remove covers during operation.
Risk of burns!
• If a cover is removed when the machine is operating, avoid contact with surfaces in-
side the acoustic cabinet.
CAUTION
Noise of running machine.
Risk of damage to hearing!
If persons are present in the vicinity of a non noise insulated machine over extended pe-
riods:
• Make sure that ear protection is being used.
6.1 System Activation
WARNING
The machines may start without notice.
Risk of severe injury!
As soon as the “PLUS Master regulation” button is switched to “Run”:
• Make sure that the machines are fully operational.

In Operation | 6
Instruction Manual PLUS Master Control R5 PLUS_EN_en 17 / 44
The “PLUS Master Control” is an automatic system. It controls the PLUS pumps inte-
grated to the system according to a user-defined target pressure and the actual pressure
measured in the system.
HOME OPERATIONS TREND SETTINGS
Instant absorbed power
Inlet pressure Target pressure
17.0 kW
20 mbar
< 5 mbar
Run
PLUS Master regulation
Running
70%
VP1 VP2 VP3 VP4 VP6VP5
Running
70%
Auto
0%
Auto
0% N/A
Running
70%
To set the target pressure:
• Go to “HOME”
• Enter the target pressure that the system should regulate, password required ► Role 2,
see Role and User [►6]. The value must be between 0 and 400 mbar(a).
To start the system and activate the PLUS Master Control, switch the “PLUS Master reg-
ulation” button to Run.
NOTE
- When the PLUS Master regulation is activated, the system automatically controls the
pumps and starts/stops them according to the vacuum demand from the process. Acti-
vating the function will therefore only cause one or more pumps to start if the pressure
in the system is higher than the target pressure.
- The PLUS Master Control optimizes power consumption and overall operating hours of
system. It also controls the running hours of each pump individually. Therefore, the first
pump to start will not necessarily be the Master pump and will not always be the same
at each system restart.
- When a vacuum pump is in “Auto” mode in the PLUS Master Control interface, it is
not possible to start it or stop it locally by pressing the Start/Stop button located next to
the touchscreen on the pump. The pump is configured to be automatically started and
stopped by the PLUS Master Control only.

6 | In Operation
18 / 44 Instruction Manual PLUS Master Control R5 PLUS_EN_en
6.2 Week Planner
The "week planner" function is only available for “Role 2” people, password required ►
see Role and User [►6]. It allows definition of a weekly schedule for starting or stop-
ping the PLUS system automatically. A single start and stop a day is possible.
To configure the weekly schedule:
• Go to “OPERATIONS” > “WEEK PLANNER”.
• Press on the days when automatic start and stop are required.
• Set up the starting and stopping times.
To activate the week planner:
• Switch on the “Week-planner” button.
HOME OPERATIONS TREND SETTINGS
PUMPS ECOMODE WEEK PLANNER PARAMETERS
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Day
00 :
6 : 50
8 : 15
7 : 30
8 : 0
Start at Stop at
17 : 15
0:17
17 : 15
59:23
16 : 0
On
Week-planner
↴
↳
NOTE
To allow the system to operate non-stop from one day to the next one, select 23:59 as
the stop time on the first day and 00:00 as the start time on the second day. Arrows ap-
pear in the weekly schedule table to show that the system will continuously run between
the two days.
NOTE
The Week planner does not define time periods in which the system will operate contin-
uously, but the time periods in which it will operate if the pressure value is higher than
the Target pressure. Outside these time periods, the system will be automatically deacti-
vated and will not start, regardless of the pressure value.

In Operation | 6
Instruction Manual PLUS Master Control R5 PLUS_EN_en 19 / 44
6.3 Ecomode
The Ecomode stops the system when the inlet pressure has reached the preset "Ecomode
pressure" within a defined time delay and will restart once the inlet pressure exceeds the
"Restart pressure".
This mode is only available for “Role 2” people, password required ► see Role and User
[►6].
To active and set the Ecomode:
• Go to “OPERATIONS” > “ECOMODE”.
• Press on the Ecomode switch button (password required).
HOME OPERATIONS TREND SETTINGS
VP1 VP2 VP3 VP4 VP6VP5
PUMPS ECOMODE WEEK PLANNER PARAMETERS
NEXTPREVIOUS
Ecomode
Ecomode pressure
20 mbar
On
Time delay
10 s
Restart pressure
100 mbar
• Press a value to change it.
Parameter Default value Adjustment range
Ecomode pressure 20 mbar 5 … 400 mbar
Restart pressure 100 mbar 100 … 1000 mbar
Time delay 10 s 1 … 999 s

6 | In Operation
20 / 44 Instruction Manual PLUS Master Control R5 PLUS_EN_en
6.4 Warm-up / Cool-down Modes
The warm-up mode allows the machines to obtain a suitable operating temperature for
the process.
The cool-down mode allows the evacuation of any condensable vapours, refer to the in-
struction manual(s) of the respective pump(s) for more information.
During these phases, the pumps operate at maximum speed, with the gas ballast valve
open, in order to warm up and evacuate a maximum of humidity.
• The warm-up and cool down modes must be set with a target time. They are only
available for “Role 2“ people, password required ► see Role and User [►6].
To activate these two modes:
• Go to “OPERATIONS” > “PARAMETERS”.
• Access to the first screen.
• Press on warm-up and/or cool-down switch button (password required).
HOME OPERATIONS TREND SETTINGS
PUMPS ECOMODE WEEK PLANNER PARAMETERS
NEXTPREVIOUS
Warm-up Enable Time
On 30 min
Cool down Enable Time
On 30 min
• Press a value to change it.
Parameter Default value
Warm-up time 30 min
Cool-down time 30 min
The Warm-up mode requires the activation of the Week-planner, see Week Planner
[►18]. When the Warm-up mode is activated, all pumps in the system will perform a
warm-up cycle for the time defined by the user at each system start time defined in the
calendar.
The Cool-down mode does not require the activation of the Week-planner. When the
Cool-down mode is activated, each pump will perform a cool-down cycle before being
switched off by the PLUS Master control. If the vacuum demand increases before the
end of the cool-down cycle and the pump is required again in the system, the cool down
phase will be stopped and the pump will be activated again in the system.