Gamma+ DIGITEL MPCq User manual

DIGITEL MPCq CONTROLLER
USERS MANUAL
Document 900034, Rev B
ISO 9001:2015 Certied

Page 2 of 28
Gamma Vacuum DIGITEL MPCq Users Manual
Document 900034, Rev B
CONTENT
1. GENERAL INFORMATION..................................................3
2. APPROVALS........................................................................3
3. WARNINGS........................................................................3
4. UNPACKING THE CONTROLLER ........................................4
5. SAFETY NOTICES...............................................................4
6. INSTALLATION...................................................................4
7. CONTROLLER CONFIGURATION.......................................5
8. HV CONTROL / ION PUMP OPERATION............................5
9. PRESSURE MEASUREMENT ................................................. 6
10. FRONT PANEL..................................................................6
11. TOUCHSCREEN USER INTERFACE ....................................7
12. ERROR / STATUS CODES................................................ 14
13. REAR PANEL ................................................................... 15
14. SERIAL COMMUNICATION ............................................ 17
15. ETHERNET COMMUNICATION...................................... 24
16. PROFIBUS COMMUNICATION....................................... 24
17. TECHNICAL SPECIFICATIONS.........................................25
18. WARRANTY & SERVICE................................................... 26
19. RETURN MATERIAL AUTHORIZATION FORM ..................28
TABLES
Table 1. Error / Status Codes ................................................. 14
Table 2. J104 Connector Pinout............................................. 16
Table 3. J112 Connector Pinout ............................................. 16
Table 4. Command Packet Structure Over Serial Connection... 17
Table 5. Response Packet Structure Over Serial Connection..... 18
Table 6. Response Code Error Codes..................................... 18
Table 7. Command CRC Checksum ....................................... 19
Table 8. Response CRC Checksum......................................... 19
Table 9. Gamma Protocol Commands....................................20
Table 10.Command Packet Struct. Over Ethernet Connection .. 24
FIGURES
Figure 1. MPCq Front Panel .....................................................6
Figure 2. Home Screen (two HV supplies installed) ....................7
Figure 3. Home Screen (with internal TSP supply installed) .........7
Figure 4. Home Screen With Control Buttons Invoked................7
Figure 5. Main Menu (Page 1)).................................................7
Figure 6. Main Menu (Page 2) .................................................7
Figure 7. Supply Setup Screen ..................................................8
Figure 8. Display Setup Screen.................................................8
Figure 9. System Setup Screen..................................................8
Figure 10. Analog Output Screen.............................................9
Figure 11. Digital Input Setup Screen ........................................9
Figure 12. Digital Output Setup Screen................................... 10
Figure 13. Relay Setup Screen................................................ 10
Figure 14. Serial Port Setup Screen......................................... 11
Figure 15. Profibus Setup Screen............................................ 11
Figure 16. Ethernet Setup Screen............................................ 11
Figure 17. TSP Sublimation View Screen (no control buttons) .... 12
Figure 18. TSP Sublimation View Screen With Controls ............ 12
Figure 19. TSP Setup Screen................................................... 13
Figure 20. TSP Pressure Window Screen ................................. 13
Figure 21. Display Error/Status Codes Screen.......................... 14
Figure 22. MPCq Rear Panel.................................................. 15

Page 3 of 28
Gamma Vacuum DIGITEL MPCq Users Manual
Document 900034, Rev B
1. GENERAL INFORMATION
The DIGITEL™ MPCq is an ion pump power supply controller.
It is designed to operate up to two independent ion pumps along
with a titanium sublimation pump (TSP).
It can accommodate any ion pump size up to 1200 l/s.
The front panel display provides direct readout of the ion pump
voltage, current, or pressure.
Individual model specification information is located on our website
at: www.gammavacuum.com.
WARNING: Do not use unauthorized parts.
Such parts may compromise safety. Contact
Gamma Vacuum with any questions.
NOTE: Read this entire manual and follow installation instructions.
Failure to do so may cause injury and/or may void warranty.
2. APPROVALS
The DIGITEL MPCq is shown to meet the intent of Directive 89/336/
EEC for Electromagnetic Compatibility and Low Voltage Directive
73/23/EEC for product Safety. Compliance was demonstrated to
the following specifications as listed in the Official Journal of the
European Communities:
• IEC 61010-1
• EN 61010-1
• UL 61010-1
• CAN/CSA-C22.2 No. 61010-1
3. WARNINGS
WARNING:
SHOCK HAZARD. CAN
CAUSE INJURY OR DEATH.
REMOVE POWER BEFORE
SERVICING.
ALERTE:
RISQUE DE CHOC. PEUT
CAUSER DES BLESSURES
OU LA MORT. RETIRER LA
SOURCE D’ALIMENTATION
AVANT LE SERVICE.
警 告：
点検・修理の際は 必
ず全ての電源を お
切りください。 使
用者が感電した り、
死亡、または 重傷
を負う危険が あり
ます。
安全 警告:
触电危险。触 电可 能导
致受伤或死亡。 请于维
修前去掉电 源。
ADVERTENCIA:
PELIGRO POR DESCARGA. PUEDE
CAUSAR LESIÓN O INCLUSO LA
MUERTE. RETIRE Y DESCONECTE
LA FUENTE DE ALIMENTACION
ELECTRICA, ANTES DE PROCEDER
AL SERVICIO DE REPARACIÓN,
MANTENIMIENTO O REVISION
INTERNA.
ACHTUNG:
GEFAHR ELEKTRISCHER
SCHLÄGE. VERLETZUNGS- ODER
LEBENSGEFAHR. TRENNEN
SIE ALLE ELEKTRISCHEN
ANSCHLÜSSE VON DER
SPANNUNGSVERSORGUNG
BEVOR SIE ARBEITEN AN DEM
GERÄT AUSFÜHREN.
WARNING:
HEAVY OBJECT. TO AVOID
MUSCLE STRAIN OR BACK
INJURY, USE LIFTING AIDS
AND PROPER LIFTING
TECHNIQUES WHEN
REMOVING OR REPLACING.
ALERTE:
OBJET LOURD. POUR
EVITER UNE TENSION
MUSCULAIRE OU UN MAL
DE DOS, UTILISER DES
AIDES ET DES TECHNIQUES
DE LEVAGE APPROPRIEES
POUR L’ENLEVEMENT OU LE
DEPLACEMENT.
警告:
大 変 重 い 装 置 で す。
筋挫傷、背部損
傷等を防ぐ為、移
動や移設の際は適
切な技術や補助機
器 等 を使 用してく
ださい。
安全 警告:
重物。为避免肌肉
拉伤或背部受伤，
当移动或归位时请
使用起重设备以及
适当的起重技术。
ADVERTENCIA:
OBJETO PESADO. PARA EVITAR UN
SOBRE-ESFUERZO MUSCULAR O
DAÑO FÍSICO, UTILIZE LA AYUDA
DE ELEVADORES Y TÉCNICAS
APROPIADAS PARA EL MANEJO
DE OBJETOS PESADOS, CUANDO
LO TRANSPORTE, DESPLAZE O
CONSIDERE REEMPLAZARLO.
ACHTUNG:
SCHWERES OBJEKT.
ZUR VERMEIDUNG VON
MUSKELZERRUNGEN ODER
RÜCKENSCHÄDEN BEIM
TRANSPORT GEEIGNETE
HUBVOR-RICHTUNGEN UND
HEBETECHNIKEN VERWENDEN.
WARNING:
READ AND UNDERSTAND
OPERATOR’S MANUAL
BEFORE USING THIS
MACHINE. FAILURE TO
FOLLOW OPERATING
INSTRUCTIONS COULD
RESULT IN INJURY OR
DAMAGE TO EQUIPMENT.
ALERTE:
LIRE ET COMPRENDRE LE
MANUEL D’OPERATION
AVANT D’UTILISER CETTE
MACHINE . NE PAS SUIVRE
LES INSTRUCTIONS
D’OPERATION PEUT CAUSER
DES BLESSURES OU DES
DEGATS A L’EQUIPEMENT.
警 告：
この 装 置を 使 用さ
れる前に必ず取 扱
説明書を熟読し理
解した上でご使 用
く だ さ い 。取 扱 説
明書 の 通り操作を
しなかった場合、
装 置 が 損 傷 、破 損
することがありま
す。
安全 警告:
在使用这台机器前，
请务必阅读并理解
“操作员手册
（ 指 南 ）”。如 果
未能遵循操作步骤
说明 ，将 可 能 导致
设备的损坏。
ADVERTENCIA:
LEA, ESTUDIE, Y ENTIENDA BIEN EL
MANUAL DE OPERACION, ANTES
DE USAR ESTA MAQUINARIA.
UNA FALLA POR NO SEGUIR LAS
INSTRUCCIONES OPERATIVAS,
PUDIERA RESULTAR EN DAÑO O
PERJUICO DEL EQUIPO.
ACHTUNG:
LESEN UND VERSTEHEN SIE
DIE BEDIENUNGSANLEITUNG
BEVOR SIE DAS GERÄT IN BETRIEB
NEHMEN. FEHLBEDIENUNGEN
KÖNNEN ZU VERLETZUNGEN
FÜHREN ODER DIE AUSRÜSTUNG
BESCHÄDIGEN.

Page 4 of 28
Gamma Vacuum DIGITEL MPCq Users Manual
Document 900034, Rev B
4. UNPACKING THE CONTROLLER
4.1 Inspect For Any Obvious Damage
If the controller is damaged in any way, a claim should be filed with
the carrier immediately and notification given to customer center
where the order originated, and/or Gamma Vacuum.
If equipment must be retuned for inspection or repair, obtain a return
authorization from Gamma Vacuum prior to shipping. Contact
Gamma Vacuum for authorization and return instructions.
4.2 Check The Equipment Received
Ensure that all items shipped have been received. If any items are
missing, notify the carrier and Gamma Vacuum. Save all packaging
material for inspection.
5. SAFETY NOTICES
1. Gamma vacuum controllers designed for ion pump operation
are capable of delivering 7kV under open-circuit or low-pressure
operating conditions. Gamma vacuum products are designed
and manufactured to provide protection against electrical and
mechanical hazards for the operator and the area surrounding the
product.
2. Installation procedures are for use by qualified, authorized
personnel who have experience working with 50 volts or greater.
To avoid personal injury, do not perform any installation or service
unless qualified to do so.
3.There are no serviceable parts inside the controller power-supply,
and voltages as high as 7kV may be present. Do not open the
supply case under any circumstances. In the event of the power-
supply requiring attention, return it to Gamma Vacuum.
4. Do not disconnect the high-voltage cable with the power on.
After turning the power off, allow at least one minute before
disconnecting electrical equipment.
5.Do not operate the controller without a proper electrical ground or
near water. The controller may be damaged and its safety reduced
if it is operated outside of its specifications.
6. INSTALLATION
The DIGITEL MPCq is a full 19 inch rack controller. No additoinal
hardware needed to install in a standard 19 inch wide device rack.
Maintain a 2.52 in. (64 mm) clearance behind controllers for cable
bend radius and proper airflow.
CAUTION: This equipment uses a detachable
power supply cord. Do not replace with
inadequately rated supply cords.
6.1 Required Items
You will need the following items to install the controller:
1. A 3-wire, detachable, universal input power cable (included).
2. A high voltage (HV) cable for each pump (ordered separately).
3.A safety ground cable for each pump (ordered separately).
6.2 Installation Procedure
1. Place the controller in its location and secure as necessary.
2. Connect the safety ground cable to the pump and the safety
ground stud at the DIGITEL rear panel.
3.Connect the high voltage cable to the ion pump and the high
voltage connector on the DIGITEL rear panel (J501–J504).
4. If high voltage cable has an optional safeconn feature (HV
interlock), an additional connector is part of the high voltage
cable. Connect it to the safeconn connector (J401–J404),
otherwise, use safeconn shorting jumper cable to connect to
safeconn connector (J401-J404). Safeconn interlock must be
satisfied, otherwise HV cannot be turned on.
5.Verify correct input voltage requirements. Connect mains AC
power cable to input power receptacle on the controller rear panel.

Page 5 of 28
Gamma Vacuum DIGITEL MPCq Users Manual
Document 900034, Rev B
7. CONTROLLER CONFIGURATION
Following configuration options are specified at order time:
7.1 Input Mains AC Voltage (110Vac vs. 220Vac)
Controller does not have universal power input, thus input mains AC
voltage is part of the controller configuration.
Care must be taken when connecting controller to mains AC voltage
to avoid connecting controller to wrong input voltage.
7.2 Supply configuration
Following controller configurations are valid:
a. One HV supply/channel
b. Two HV supplies/channels
c. One HV supply/channel and one internal TSP or NEG supply
7.3 Output voltage polarity for each HV channel
(positive vs. negative)
In case of positive polarity, output voltage is set to 7kV by default.
In case of negative polarity, output voltage is set to -5.6kV by default.
Output voltage is fixed (linear power supply, transformer tap).
7.4 Type of the HV output connectors
Following are standard HV connector types for J501 - J504:
a. SHV-10kV (matching safeconn connector type is SMB style)
b. Fisher (matching safeconn connector type is mini banana style)
Other HV connector types are available per request.
7. 5 Number of HV output connectors per HV supply
There can be more than one HV output connector tied to the same
HV supply. In such case, connectors are tied in parallel.
Controller can have maximum of 4 HV output connectors in any
configuration. For example, 2 HV output connectors per 1 HV supply.
7.6 Communication interface
Controller comes standard with Serial and Ethernet interface.
Profibus interface is optional.
7.7 Remote TSP control
Controller comes standard with connector J505 CTRL installed.
Connector can be used to connect and control Remote TSP/NEG
Controller.
See rear panel section for connector location.
If internal TSP/NEG supply is installed, connector J505 is not
availble.
8. HV CONTROL / ION PUMP OPERATION
8.1 Prior to using an ion pump
Confirm following:
- Rough pump down to 1x10-4 Torr or less (the lower the better).
1x10-6 Torr is recommended. See Rough Pump user manual for
details.
NOTE: Use the full extent of available rough pumping before
starting an ion pump to extend pump’s lifetime, improve
system ultimate pressure, and get accurate current readings.
- Evacuate the Vacuum System
- Ensure contaminants do not exist in the system.
- If necessary (i.e. ion pump exposed to atmospheric pressure) bake
the ion pump and system into roughing pump to achieve lowest
pressure. See Ion Pump user manual for details.
8.2 Prior to turning on HV and starting an ion pump
Confirm following:
- Verify high voltage cable is installed and connecting controller’s
high voltage (HV) output connector (rear panel, J501-J504) to the
ion pump.
- Verify controller and connected ion pumps are grounded using
redundant ground wire.
- Verify controller’s high voltage output has correct polarity for the
connected ion pump (positive for diode pump, negative for triode
pump).
- Verify safeconn interlock is satisfied.
If high voltage cable has optional safeconn interlock feature, an
additional connector is part of the high voltage cable. Connect
it to controller’s safeconn connector (J401-J404). If high voltage
cable does not have safeconn interlock feature, use safeconn
shorting jumper cable to connect to controller’s safeconn connector
(J401-J404).
Safeconn interlock must be satisfied, otherwise HV cannot be turned
on.
If safeconn interlock is not satisfied, controller will display error 20
(safeconn interlock not satisfied) for that HV channel.
- Verify proper pump size is configured. HV cannot be turned on if
pump size is set to 0. By default pump size is set to 0.
If pump size is set to zero, controller will display error 22 (Pump size
not configured) for that HV channel.
8.3 Turn HV on/off
Turning HV on/off can be achieved:
- Using front panel touchscreen.
- Using remote communication (Serial, Ethernet or Profibus).
- Using rear panel connector J104, Misc. I/O. (Digital Inputs)

Page 6 of 28
Gamma Vacuum DIGITEL MPCq Users Manual
Document 900034, Rev B
9. PRESSURE MEASUREMENT
Pressure value is determined using following equation
Where:
I - Current in amps.
V - Voltage in volts.
U - Pressure units conversion factor (1 for Torr, 1.33 for mBar and 133 for Pascal).
F - Configured pump pressure factor. Typically set to 1. See “11.4 Supply Setup” on page 8.
S - Configured pump size in l/s. See “11.4 Supply Setup” on page 8.
10. FRONT PANEL
Figure 1. MPCq Front Panel
10.1 Description
Front panel containts:
- Main power on/off rocker type switch (hard switch, when in off position main power is completely cut off from the unit)
- Main power indicator lamp (color green)
- 7” TFT WVGA (800x480) Color LCD, 16:9 aspect ratio, touchscreen capable (primary user interface)
- Two supply HV on/off indicator lamps (color red). Note, both lamps are installed even in single supply configuration.

Page 7 of 28
Gamma Vacuum DIGITEL MPCq Users Manual
Document 900034, Rev B
11. TOUCHSCREEN USER INTERFACE
11.1 Home Screen
Touch anywhere on the screen to invoke button controls.
Figure 2. Home Screen (two HV supplies installed)
Figure 3. Home Screen (with internal TSP supply installed)
Figure 4. Home Screen With Control Buttons Invoked
Available options:
View TSP - Switches home screen to TSP view. Button is available
only if Remote TSP Controller is connected to the MPCq Controller.
Menu - Invokes main menu.
Exit - Clears screen/hides control buttons.
Turn On/Off - Turns HV on/off for respective HV channel.
11.2 Main Menu (Page 1)
Figure 5. Main Menu (Page 1))
Page 1 of main menu is accessed by pressing the “PAGE ½” button.
Exit button will exit main menu and show home screen.
11.3 Main Menu (Page 2)
Figure 6. Main Menu (Page 2)
Page 2 of Setup Screen is accessed by pressing the “PAGE ½”
button.
Exit button will exit main menu and show home screen.

Page 8 of 28
Gamma Vacuum DIGITEL MPCq Users Manual
Document 900034, Rev B
11. 4 Supply Setup
Figure 7. Supply Setup Screen
Available setup:
Pump name - Configures pump name. Max of 15 characters.
Pump size - Configures pump size (0-1200).
Auto restart - Configures supply auto restart option (on/off).
Main display value - Configures main display value (voltage, current
pressure).
Pressure factor - Configures pump pressure factor. See “9. Pressure
Measurement” on page 6 for details.
Supply calibration - Invokes supply calibration (zeroing) process.
11. 5 Display Setup
Figure 8. Display Setup Screen
Available setup:
Brigtness Level - Configures screen brightness level (1-10).
Screensaver - Configures screen-saver on/off state. Turning screen-
saver off is not recomended as this will shorten screen backlight
lifetime.
Touchscreen calibration - Invokes touchscreen calibration process.
11.6 System Setup
Figure 9. System Setup Screen
Available setup:
Language - Configures user interface language.
Pressure Units - Configures system pressure units (Torr,
mBar, Pascal).
Fan Control - Configures fan control (On, Auto).
Restore Default Settings - Resets all settings to system defaults.
Setpoint view - Turns on/off setpoint view button on the home
screen.

Page 9 of 28
Gamma Vacuum DIGITEL MPCq Users Manual
Document 900034, Rev B
11.7 Analog Output
Figure 10. Analog Output Screen
Total of four analog outputs on connector J104:
Analog Output 1 (J104, pin 30)
Analog Output 2 (J104, pin 32)
Analog Output 3 (J104, pin 34)
Analog Output 4 (J104, pin 36)
By default, all analog outputs are turned off (function set to off).
Analog output signal range 0-10V.
Available Functions:
OFF
Pressure, logarithmic
Current, logarithmic
Current, 1V / 1nA
Current, 1V / 10nA
Current, 1V / 100nA
Current, 1V / 1uA
Current, 1V / 10uA
Current, 1V / 100uA
Current, 1V / 1mA
Current, 1V / 10mA
Current, 1V / 50mA
Voltage, 1V / 1kV
Supply Source - Selects supply driving analog output.
Options applicable to ‘Pressure, logarithmic’ and ‘Current,
Logarithmic’ functions:
Offset: Valid range from -15 to +15
Output State: Normal vs. Inverted (see examples below for details)
Logarithmic Current Example:
Current = 2X10-8 (20nA), Offset = 8, Output state = Normal
Step 1: Calculate the log of the current (Log (2X10-8) = -7.7).
Step 2: If ‘Output state = Inverted’ multiply current log value in
step 1 by (-1).
Step 3: Add the offset value (-7.7 + 8 = 0.3 Volts).
The analog output pin will read 0.3V.
Logarithmic Pressure Example:
Pressure = 1x10-9 Torr, Offset = 11, Output state = Normal
Step 1: Calculate log of pressure (Log (1x10-9) = -9)
Step 2: If ‘Output state = Inverted’ multiply current log value in
step 1 by (-1).
Step 3: Add offset value(-9 + 11 = 2V)
The analog output pin will read 2V.
11.8 Digital Input Setup
Figure 11. Digital Input Setup Screen
Total of four digital inputs on connector J104.
Digital Input 1 (J104, pin 22)
Digital Input 2 (J104, pin 23)
Digital Input 3 (J104, pin 24)
Digital Input 4 (J104, pin 25)
By default all digital inputs are turned off (function set to off).
Available Functions:
OFF
HV Interlock
HV Switch
TSP 1 Interlock
TSP 2 Interlock
HV Interlock Function
Ground pin to satisfy interlock. If interlock is not satisfied, HV cannot
run.
HV Switch Function
Ground pin to turn on HV, otherwise HV is off.
TSP 1 Interlock Function
Ground pin to satisfy TSP 1 interlock. If interlock is satisfied, TSP 1
cannot run.
TSP 2 Interlock Function
Ground pin to satisfy TSP 2 interlock. if interlock is not satisfied, TSP
2 cannot run.
Supply Source - Selects supply that will be controlled by this setup.

Page 10 of 28
Gamma Vacuum DIGITEL MPCq Users Manual
Document 900034, Rev B
11.9 Digital Output
Figure 12. Digital Output Setup Screen
Total of four digital outputs on connector J104:
Digital Output 1 (J104, pin 15)
Digital Output 2 (J104, pin 17)
Digital Output 3 (J104, pin 19)
Digital Output 4 (J104, pin 37)
By default, all digital outputs are turned off (function set to off).
Digital output signal 0-5V.
Available Functions:
OFF
Pressure setpoint
HV Error
HV Output state
Pressure Setpoint Function
ON Pressure - When pressure value gets below this point, digital
output is asserted.
OFF Pressure - When pressure value gets above this point, digital
output is deasserted.
HV Error Function
Digital output is asserted when supply error is detected.
HV Output State Function
Digital output is asserted when supply is on (HV on), or de-asserted
when supply is off (HV off).
Supply source - Selects supply driving digital output.
11.10 Relay Setup
Figure 13. Relay Setup Screen
Total of four relays on connector J104:
Relay 1 (J104, pins 1, 2, 3)
Relay 2 (J104, pins 4, 5, 6)
Relay 3 (J104, pins 7, 8, 9)
Relay 4 (J104, pins 10, 11, 12)
By default, all relays are turned off (function set to off).
Setup is identical to digital output setup. See digital output setup.
For relay pinout details see “Table 2. J104 Connector Pinout” on
page 16.