iseg HPS Series User manual

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0)351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0)351 / 26 996 - 21
D - 01454 Radeberg/ Rossendorf
!
19“ / 1U – High Voltage Power Supplies
HPS-series 300 W and 800 W
Manual
1. Safety instructions
2. Description of operation
3. Technical Data
4. Description of CAN Interface
5. Description of RS232 Interface
6. Description of IEEE Interface
7. Command sets for RS232 and IEEE Interface
8. Description of analogue I/O
9. Trouble shooting
Attention!
It is forbidden to use the unit if the covers have been removed to avoid the possibility of lethal
shock to the operator!
We decline all responsibility for damages and injuries caused by an improper use of the
module. It is strongly recommended to read the operators manual before operation!
Note:
All information in this document is subject to change without notice. We take no responsibility for any error in
this document. We reserve the right to make changes in the product design without any notification to the users.
Filename HPx_300-800W_03_eng.___; Version 4.04 as of 2006-11-08

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0)351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0)351 / 26 996 - 21
2 D - 01454 Radeberg/ Rossendorf

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0) 351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0) 351 / 26 996 - 21
D - 01454 Radeberg/ Rossendorf 3
!
1. Safety instructions
This High Voltage Power Supply has to be installed by skilled personnel only.
Following instructions are made for the personal safety of the operator, the safe use of this product
and the connected units.
Caution
Dangerous Voltage
This unit is supplied from line voltage of 230V and generates an output voltage of up to
30 kV.
The disregard of this voltage condition can cause death, heavy injuries or material
damage.
Danger in case of missing connector at the HV output
The LEMO-HV connector will be used for units which generate output voltages > 6kV.
It is forbidden to switch on this unit without a suitable connector inclusive a cable which
is connected to the output connector and the load.
Before connecting to the local mains it must be proofed that the nominal line voltage of this unit is
equal to the local mains.
Caution: After system-assembly the guard connections have to be checked if they are connected
correctly !
The guard connection has to be proofed through a correct mains cable. An additional guard
connection is possible via the green-yellow guard connector next to the HV Output ( ⊥/PE-connector).
The shield of the HV output is always connected to the housing ( ⊥/PE-connector).
If this shield is intended to use as “reverse line“ , then a jumper has to be plugged between the “0 V“
(reverse current) and the “ ⊥/PE” connector.
If this jumper has been removed, the “0 V“ connector close to ground can be float to max. ±300 V. In
this case the user is responsible that - due to the voltage between “0 V“ and “ ⊥/PE“ connector - no
danger for the user may occur.
If the potential between “0 V“ and “ ⊥/PE“ connector is > ⎪300⎪V then - in order to avoid damages for
the unit - the connections are short circuited with help of electronically protection circuits.
The unit is prepared to be mounted into a 19“-cabinet. In this case the necessary air flow conditions
through the according air input and output slots have to be guaranteed.
If the unit will be used as desk top instrument then the enclosed unit bases have to be glued on the
bottom sheet in order to guarantee a certain distance to the desk.
Before the cover of the unit will be removed the mains connection has to be disconnected, the
discharge time of at least (> 15 s) of the output capacitance has to be kept and the discharge status
has to be checked afterwards.
Only skilled and authorised people are allowed to do any service, repair or maintenance for this unit.

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0)351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0)351 / 26 996 - 21
4 D - 01454 Radeberg/ Rossendorf
mA
kV
ESC
KILL SETLOCAL
ON
OFF
POWER HV REM ERROR VOLTAGE CURRENT CURRENTVOLTAGE HV OUT
OV
CCCV
ENTER
LSTN
TALK HIGH VOLTAGE POWER SUPPLY
KILL
ENABLE
2. Description
The High Voltage PS of the HPx)1 - 300 W series provide an output voltage of 0 up to 30 kV-DC at
max. 300 W output power.
The High Voltage PS of the HPx)1 - 800 W series provide an output voltage of 0 up to 15 kV-DC at
max. 800 W output power.
Mains voltage is 85 - 264 V -AC 50/60 Hz (PFC is standard).
The output voltage and current are limited due to the hardware circuitry. The polarity is factory fixed
( )1x=p: positive; )1x=n: negative).
The shield of the HV output is always connected to the housing ( ⊥/PE-connector).
If this shield is intended to use as “reverse line“ , then a jumper has to be plugged between the “0 V“
(reverse current) and the “⊥/PE” connector.
If this jumper has been removed, the “0 V“ connector close to ground can be float up to max. ±300 V.
In this case the user is responsible that - due to the voltage between “0 V“ and “⊥/PE“ connector - no
danger for the user may occur.
If the potential between “0 V“ and “⊥/PE“ connector is > ⎪300⎪V then - in order to avoid damages for
the unit - the connections are short circuited with help of internal electronically protection circuits.
After “POWER ON“ the unit is ready to use, the displays are flashing.
The mode is “LOCAL“ now, the KILL-function is “disable“.
In “LOCAL“ mode the output voltage and the output current can be set via the 10 turn potentiometers
on the front panel. The generation of High Voltage at the HV output (on front or rear side) is starting
after pushing the button „ON/OFF“, the green LED “HV“ is flashing.
CAUTION ! The High Voltage which has been selected with help of the 10-turn potentiometer
is going to ramp with 3 kV/s to the chosen voltage, this ramp is a factory setting.
After pushing the button “ON/OFF“ again the HV will be shut OFF, the LED is off.
There are 2 control modes:
1. Voltage control “CV”:
Control of the output voltage according to the value “Voltage” (IOUT < value “Current“), the
LED “CV” is flashing.
2. Current control “CC”
Control of the output current according to the value „Current ” (VOUT < value “Voltage“), the
LED “CC” is flashing.
The KILL-function will be set with button “KILL” .
Disable: The output voltage will be limited after reaching IOUTmax .
Enable: The yellow LED “KILL ENABLE” is flashing.
The output voltage will be shut off permanently without ramp, if IOUT ≥IOUTmax.
The re-setting of the output voltage is possible after pushing button “HV-ON“ again.

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0) 351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0) 351 / 26 996 - 21
D - 01454 Radeberg/ Rossendorf 5
The Standard units of the HPx)1 - 300 W and 800 W series are with CAN- and RS232-Interface.
Available as options are:
- additionally IEEE-Interface and
- indirect coupled analogue I/O with VSET/MON = 0 up to 5 V instead of RS232-Interface.
In menu “SET“ under function 09 the interface of your choice has to be selected.
If an existing interface has been selected by menu „SET“ the control of the device will be activated
automatically due to receipt of the according commands coming in ( e.g. from a PC ) and the yellow
LED is flashing.
By pushing the push button „LOCAL“ the remote control will be stopped and the device will be
switched into „HV-OFF“. In case of receipt of remote commands the device will be reactivateted
immediately.
Analogue control via analogue I/O can be selected by push button „LOCAL“ (exception see menu
„SET“, function 08), the yellow LED „REM“ is flashing. By pushing „LOCAL“ again the devices runs
back to the mode „HV-OFF“ and manual mode.
In menu “SET“ further configurations are possible. You can access the Menu by pushing button “SET“
into “OFF“ mode.
With push button “SET“ all function are available by scrolling. The desired function will be selected by
pushing “SET“ and “LOCAL“ simultaneously ⇒Function “ENTER”.
The selected values will be stored and activated by the “ENTER“ function. If this has been made
successfully the unit is back in “HV-OFF“ mode.
Pushing the button “ESC“ is going back to menu “SET“ without any change of the pre-selected
values.
Pushing button “LOCAL“ is always leading back to manual mode. In this case the HV will be shut off.
( ⇒HV-OFF).
If no push button of the menu will be switched the display is automatically going back to the mode
„HV-OFF“ after a delay time of 30 sec.

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0)351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0)351 / 26 996 - 21
6 D - 01454 Radeberg/ Rossendorf
Menu Display Description
Software limit voltage F 01 ULt Set software-voltage limit with pot. “Voltage”.
VOUT will be limited to this value ( 0.0 ≅VOUTmax )
“SET“ “ENTER“
Software limit current F 02 ILt Set software-current limit with pot. “Current“
IOUT will be limited to this value ( 0.0 ≅IOUTmax )
“SET“ “ENTER“
Hardware limit Imax F 03 HCLt Not implemented
“SET“ “ENTER“
Pre-setting U-SET F 04 USEt Values > 0 with pot. “Voltage“ will be set automatically
with “HV-ON“, LED at the pot. is off.
“SET“ “ENTER“
Pre-setting I-SET F 05 ISEt Values > 0 with pot. “Current“ will be set automatically
with “HV-ON“, LED at the pot. is off.
“SET“ “ENTER“
Ramp set F 06 rSEt Set of Ramp with pot. “Voltage“ in a range of 10 up to
3000 V/s ( 0.0 ≅3000 V/s, factory setting)
“SET“ “ENTER“
Polarity set F 07 PSEt Not implemented
“SET“ “ENTER“
Control with analogue
I/O automatically F 08 Auto ON with “SET”:
Control is in remote control mode via analogue I/O
after “POWER-ON” and “HV-ON” automatically
The INHIBIT signal on analog I/O has the priority!
“INHIBIT“ High to Low: HV switch off always,
Low to High: HV switch on always,
LOW static, HV=0
Activate/Switch on with „HV-ON“ or „INHIBIT“
OFF with “SET”:
Control is in “LOCAL” control mode after “POWER-
ON” and “HV-ON”
“INHIBIT“ High to Low: HV switch off always,
LOW static, HV=0
Switch on with „HV-ON“ only
“SET“ “ENTER“
Change interface F 09 ChIF “CAn” remote control via CAN-Interface
“SET”
“r232” remote control via RS232-Interface
“SET”
“IEEE” remote control via IEEE-Interface
“SET”
“aIF” remote control via analogue I/O
“SET” back to “CAn”
“SET“ “ENTER“
Instruction set F 10 InSt “SCPI” control under SCPI-command set
(IEEE and RS232)
“SET”
“Et” control under command set of ET System
electronic GmbH (IEEE and RS232)
“SET” back to “SCPI”
“SET“ “ENTER“
Address IEEE F 11 AdrI “SET” ⇒IEEE-bus unit address of 01 to 31
“SET“ “ENTER“
Address CAN F 12 AdrC “SET” ⇒CAN-bus unit address of 00 up to 63
“SET“ “ENTER“
Echo on/off for RS232 F 13 ECHO On ⇒“Set”⇒Off⇒“Set” ⇒On
“SET“ “ENTER“
Back to F 01

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0) 351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0) 351 / 26 996 - 21
D - 01454 Radeberg/ Rossendorf 7
3. Technical Data
19“ / 1U - series HPx)1 300 W
HPx)1 10 307
HPx)1 20 157 HPx)1 30 107 HPx)1 40 756 HPx)1 60 506 HPx)1 80 356 HPx)1 120 256 HPx)1 150 206 HPx)1 200 156 HPx)1 300 106
Output voltage VOUT max [kV] 1 2 3 4 6 8 12 15 20 30
Output current IOUT [mA] 300 150 100 75 50 35 25 20 15 10
HV-connector SHV front side (opt. rear side) Lemo-HV-connector rear side
V
OUTmax ≤16kV: Lemo ERA.1Y.416.CLL
V
OUTmax > 16kV: Lemo ERA.3Y.425.CLL
Attention: Use with connected HV connector only !
Output power max. 300 W
Polarity Factory fixed ⇒)1x = p: positive ⇒)1x = n: negative
Ripple & noise < 1 ∗10-4 ∗VOUTmax (VP-P)
Voltage stability < 1 ∗10-4 ∗VOUTmax (load to no load, ∆VIN and repeatability)
in the output voltage range: 5 V ≤VOUT ≤VOUTmax
Current stability < 2 ∗10-3 ∗IOUTmax ( RLmin ≤RL< no load and ∆VIN)
in the output voltage range: 5 V ≤VOUT ≤VOUTmax
Accuracy voltage measurement ± (0,05% ∗Vout + 0,02% ∗Vout max + 1 digit) for one year
current measurement
± (0,05% ∗Iout + 0,02% ∗Iout max + 1 digit) for one year
Display 4-digit LED-Display for current and voltage
Resolution of voltage and current
measurement via Interface: VOUTmax / 50000 via Display: limited to 4 digit I
OUTmax / 50000
Resolution of settings LOCAL VOUTmax / 2000 and IOUTmax / 2000
Voltage / Current REmote VOUTmax / 50000 and IOUTmax / 50000
Switching of output voltage with button “ON/OFF” or via remote control
Control LOCAL 10-turn potentiometer for voltage and current
(REMote) CAN via CAN-Interface (also for diagnosis / software update)
RS232 via RS232-Interface
optional: aIF via indirect coupled analogue I/O instead of RS232-Interface
optional: IEEE via IEEE-Interface additionally
Supply VIN = 85 up to 264 V-AC with PFC
IIN = 1,7 A at 230V-AC / 3,5 A at 115 V-AC
via mains connector and switch “POWER“, isolated from HV-output,
fused with 2 ∗6,3 A / slow.
Dimension / Weight 1U -19“ compatible / depth: 450 mm / ca. 5,7 kg
Cooling Internal fan
Protection Over load and short circuit , voltage supply and temperature
Environment conditions Operating temperature: 5 up to 35 °C
Humidity: 30% up to 80 %, no condensation

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0)351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0)351 / 26 996 - 21
8 D - 01454 Radeberg/ Rossendorf
Storage temperature 0 up to 60 °C

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0) 351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0) 351 / 26 996 - 21
D - 01454 Radeberg/ Rossendorf 9
19“ / 1U - series HPx)1 800 W
HPx)1 10 807
HPx)1 20 407 HPx)1 30 257 HPx)1 40 207 HPx)1 60 137 HPx)1 80 107 HPx)1 120 656 HPx)1 150 506
Output voltage VOUT max [kV] 1 2 3 4 6 8 12 15
Output current IOUT [mA] 800 400 250 200 130 100 65 50
HV-connector SHV front side (optional rear side) Lemo-HV-connector
rear side: Lemo ERA.1Y.416.CLL
Attention: Use with connected HV connector only !
Output power max. 800 W
Polarity Factory fixed ⇒)1x = p: positive ⇒)1x = n: negative
Ripple & noise < 1 ∗10-4 ∗VOUTmax (VP-P)
Voltage stability < 1 ∗10-4 ∗VOUTmax (load to no load, ∆VIN and repeatability)
in the output voltage range: 5 V ≤VOUT ≤VOUTmax
Current stability < 2 ∗10-3 ∗IOUTmax ( RLmin ≤RL< no load and ∆VIN)
in the output voltage range: 5 V ≤VOUT ≤VOUTmax
Accuracy voltage measurement ± (0,05% ∗Vout + 0,02% ∗Vout max + 1 digit) for one year
current measurement
± (0,05% ∗Iout + 0,02% ∗Iout max + 1 digit) for one year
Display 4-digit LED-Display for current and voltage
Resolution of voltage and current
measurement via Interface: VOUTmax / 50000 via Display: limited to 4 digit I
OUTmax / 50000
Resolution of settings LOCAL VOUTmax / 2000 and IOUTmax / 2000
Voltage / Current REmote VOUTmax / 50000 and IOUTmax / 50000
Switching of output voltage with button “ON/OFF” or via remote control
Control LOCAL 10-turn potentiometer for voltage and current
(REMote) CAN via CAN-Interface (also for diagnosis / software update)
RS232 via RS232-Interface
optional: aIF via indirect coupled analogue I/O instead of RS232-Interface
optional: IEEE via IEEE-Interface additionally
Supply VIN = 85 up to 264 V-AC with PFC
IIN = 4,5 A at 230 V-AC / 9 A at 115 V-AC
via mains connector and switch “POWER“,
isolated from HV-output, fused with 2 ∗10 A / slow.
Dimension / Weight 1U -19“ compatible / depth: 450 mm / ca. 5,7 kg
Cooling Internal fan
Protection Over load and short circuit , voltage supply and temperature
Environment conditions Operating temperature: 5 up to 35 °C
Humidity: 30% up to 80 %, no condensation
Storage temperature 0 up to 60 °C

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0)351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0)351 / 26 996 - 21
10 D - 01454 Radeberg/ Rossendorf
4. Description of the CAN Interface.
The integrated CAN-Interface of the HPS series offers 2 functions.
Either the interface gives access to the implemented firmware of the processor controlled unit, this is
important for the service outside and for the update of software generally
or a remote control can be established via this robust and simple industry interface for up to 64 HV
units at one serial CAN-Bus line. A Command structure similar to the CAN-Open version (CAL-based
Draft Standard 301 / Ver. 3.0) has been used.
Function of the CAN-Interface
The use of the CAN-Interface can be selected by menu “F09“ “CAn“.
As soon as the unit receives the according commands via the interface the unit is running under
remote control and the yellow LED „REM“ is flashing.
Switching the push button „LOCAL“ again the control runs back to „HV-OFF“. The receipt of
commands via interface activates the remote mode again.
The electrical transmission of all CAN-commands is indirect coupled under signal CAN_L and
CAN_H, related to CAN_GND.
The pin assignment of the D-Sub-9 connector on the rear side of the unit is written in following table.
The CAN-Bus on the first and last unit has to be connected between CAN_H and CAN_L with an
impedance of 120 Ω.
PIN 2 3 5 7
Signal CAN_L CAN_GND (GND) CAN_SHLD (shield) CAN_H
During Power ON-Reset the HPS-unit is in CAN-Status “INIT“ mode ,
afterwards it changes to CAN-Status “Operational“.
The bit rate can be selected between 20, 50, 100 and 125 kBit/s ( factory fixed 125 kBit/s ).
Only through the global command “STOP“ the CAN-Interface can be switched to CAN-Status
“Pre-operational“ .
Only in “INIT“ or “Pre-operational“ mode the access to the service of the Network-Management (NMT)
and Distribution-Management (DBT) is possible.
The global command “ADJUST“ is able to change ADC-, DAC- , SUB-Identifier and Inhibit-time in
EEPROM in the DBT.
After using “Adjust“ the global command „ADJUST“ has to be locked again.
Only in status “Operational“ the HPS unit can be controlled via CAN-Bus (read values and status, set
values).
After Power ON-Reset or after global command “START“ the interface of the unit is automatically in
status “Operational“.

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0) 351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0) 351 / 26 996 - 21
D - 01454 Radeberg/ Rossendorf 11
Table 1.0
Services ID DLC DATA_1
(with RTR=0)
Network - Management
(NMT)
START / STOP /
RESET/ADJUST
global
0 1
Bit 0 = 1 ⇒Start
Bit 1 = 1 ⇒Stop
Bit 2 = 1 ⇒Reset CAN-Interf.
Bit 4 = 1 ⇒Adjust
Bit 5 = 1 ⇒INIT
These identifiers have been fixed via the ID - Distribution (DBT) Service:
Table 2.0
ID – Distribution (DBT) ID DLC DATA_1 DATA_n Remarks
Service
DBT – Master - Request 2024d
7E8h
(RTR=1)
0 Request from host only at
one connected module:
message address and ID´s
of modules
DBT - Slave - Service 2023d
7E7h
(RTR=0)
8 Mod.-Adr. 2 3 4 5 6 7 8 Message with module
address and the according
ID´s
DBT - Master - Service 2024d
7E8h
(RTR=0)
8 Mod.-Adr. ADC
-ID DAC -ID Sub- ID t Allocate new ID´s tIN ... Inhibit-time:
tIN ≈15 ∗(ADC mux) ∗t ms
DBT - Master - Service
⇓
2024d
7E8h
(RTR=0)
2 0x80 Mod.-Adr. Request from Host
to module address
message of ID´s on
address.
DBT - Slave - Service 2023d
7E7h
(RTR=0)
8 Mod.-Adr. 2 3 4 5 6 7 8 Message with module
address and the according
ID´s

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0)351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0)351 / 26 996 - 21
12 D - 01454 Radeberg/ Rossendorf
Table 3.0
Sub-Identifier (Sub-ID)
E-
command ID R T
R
D
L
C
r
/
w
command DATA_n remarks
Multiplex-
commands Sub-ID 0 x x 0 x x x x x x Work on multiplexed DAC/ADC – channels of the selected modules (Sub-ID)
DAC Sub-ID 0 1 1 0 0 0 0 0 0 0 2 Byte DAC-value Read set voltage
Sub-ID 0 1 1 0 0 0 0 0 0 1 2 Byte DAC-value Read set current
Sub-ID 0 3 0 0 0 0 0 0 0 0 2 Byte DAC-value Write for voltage channel 1
Sub-ID 0 3 0 0 0 0 0 0 0 1 2 Byte DAC-value Write for current channel 1
ADC Sub-ID 0 3 1 0 0 0 0 1 0 0 2 Byte ADC-value Read output voltage (Vmeas1)
Sub-ID 0 3 1 0 0 0 0 1 0 1 2 Byte ADC-value Read output current (Cmeas1)
Status Sub-ID 0 2 0 0 0 0 1 0 0 0 1 Byte Status Set status
Sub-ID 0 3 1 0 0 0 1 0 0 0 2 Byte Status Read status
Ramp Sub-ID 0 3 1 0 0 0 1 1 0 0 2 Byte value Read ramp
Sub-ID 0 3 0 0 0 0 1 1 0 0 2 Byte value Set ramp
Status Sub-ID 0 2 0 0 0 0 1 0 0 0 1 Byte Status Set status
Sub-ID 0 3 1 0 0 0 1 0 0 0 2 Byte Status Read status
Module
command Sub-ID 0 x x 1 x x x x x x
EEPROM Sub-ID 0 2 1 1 0 0 0 0 0 0 EEPROM-Address Read / Write Access, ( Request from host)
Sub-ID 0 3 1 1 0 0 0 0 0 0 Data_1:
EEPROM-Address Read data of EEPROM-address
Sub-ID 0 3 0 1 0 0 0 0 0 0 Data_2:
Data on address Write data on EEPROM-address only in CAN-status “Initialisation“ !
Bit rate Sub-ID 0 2 1 1 0 0 0 0 1 1 old Bit-rate Read Bit-Rate
Sub-ID 0 2 0 1 0 0 0 0 1 1 new rate Only values of 20, 50, 100, 125 for Bit rate
in kBit/s accepted
Unit-ID Sub-ID 0 6 1 1 0 0 0 1 1 0 3 byte serial no. and 2 byte software-release

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0) 351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0) 351 / 26 996 - 21
D - 01454 Radeberg/ Rossendorf 13
5. Description of the RS232-Interface
The RS232-Interface is also connected to a SubD-connector on the rear side of the unit. Before
working with RS232-Interface the menu„F09“ „r232“ has to be selected.
As soon as the device receives according commands via the interface the device is under remote
control and the LED „REM“ is flashing.
Pushing „LOCAL“ again the device is back in manual mode and „HV-OFF“ . The receipt of
commands activates the devise again under remote control.
The data transfer is character oriented, while the synchronization in direction "Computer to HV PS
unit” (Input direction) is made by echoes. The transfer direction “HV-PS to computer“ (Output
direction) is free running.
It is able to disable the Echo function since software release 4.04:
1st On control panel via menu F13 “ECHO”.
2nd Common command via interface, see chapter 7.3.
Standard setting ex works is „Echo ON“.
Programming information:
The delay time between write and read instruction has to be at least 35ms (without echo) or 70ms
(with echo).
Example: Write(“Status,u”) write instruction,
wait the delay time (35 ms without Echo/ 70ms with Echo),
send read instruction
Read(String) Answer: U, RANGE=x.xxx kV, VALUE=x.xxxx kV
The unit need a time between setting new values for voltage or current control and reading out of the
updated actual values for output voltage or current.
This minimal waiting time is given through the rate of change of output voltage (according to the
command “ramp speed”) + 130ms.
The RS232-Interface is set to 9600 Bit/s, 8 Bit/character, no parity, 1 Stop-Bit.
The electrical transfer is working indirectly coupled via RxD and TxD related to GND. The pin
assignment of the D-Sub 9 is in the following table .
The cable connection to the computer is 1:1 (no zero modem-cable !). If no 9-pole cable is available ,
then the bridges mentioned in the table have to be made.
Signal HV-PS PC PC Connection
RS 232 DSUB9 Intern DSUB9 DSUB25 3-pol. cable
RxD 2 2 3
TxD 3 3 2
GND 5 5 7
4
─┐ 4 20 ─┐
6
─┤ 6 6 ─┤
8
─┘ 8 5 ─┘
Syntax
The transfer of commands works in ASCII-code. The end of a set of characters is made by
<CR><LF> ($0D $0A or 13 10). On input side the leading zeros are useless, the output side is in
fixed format without leading zero.

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0)351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0)351 / 26 996 - 21
14 D - 01454 Radeberg/ Rossendorf
6. Description of the IEEE-Interface
The IEEE 488.2 bus interface was implemented with an IEEE controller compatible to the NEC 7210
controller. The following functions are available according IEC 625:
SH1 Source Handshake : all functions (no polling)
AH1 Acceptor Handshake : all functions (no polling)
T6 Talker : standard equipment
L4 Listener : standard equipment
The transmission is made with ASCII-commands.
The end of transmission is made by „Line feed“ (“\n”; $0A,10). On input side the leading zeros are
useless, the output side is in fixed format without leading zero.
The unit need a time between setting new values for voltage or current control and reading out of the
updated actual values for output voltage or current.
This minimal waiting time is given through the rate of change of output voltage (according to the
command “ramp speed”) + 130ms.
The IEEE-Interface is connected to the 24-pin connector according IEEE 488.2 standard on the rear.
Before working under IEEE-Interface the menu “F09“ “IEEE“ has to be selected and the menu “F11”
“AdrI” has to be set the IEEE unit address.
As soon as the device receives according commands via the interface the device is under remote
control and the LED „REM“ is flashing.
By pushing „LOCAL“ the remote control will be stopped and the device runs into the mode „HV-OFF“.
The receipt of commands activates the remote control again.
7. Command sets
7.1 ET-command set
The menu „F10“ „ET“ has to be selected.
Setting commands:
Command to set the HV:
U,<voltage>kV example U,2.458kV
Command to set the HV limit:
UL,<voltage>kV example UL,2.850kV
Command to set the output current :
I,<current>mA example I,89mA
Command to set the output current limit:
IL,<current>mA example IL,100mA
Command to set the ramp speed of the output voltage:
RAMP,<rampspeed>V/s example RAMP,1000V/s

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0) 351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0) 351 / 26 996 - 21
D - 01454 Radeberg/ Rossendorf 15
Command to set the ON and OFF switch of the HV.
HV,ON
HV,OFF
Command to set the KILL-Function of „ Enable“ and „Disable“
KILL,ENable
KILL,DISable
Command for „Emergency OFF“ (The HV generation will be switched OFF permanently and
EMCY<space> OFF the set-values for voltage and current have been set to 0.)
Read out of the setting commands
Read out of set HV:
STATUS,U response example U, RANGE=3.000kV, VALUE=2.458kV
Read out of set HV limit:
STATUS,UL response example UL, RANGE=3.000kV, VALUE=2.850kV
Read out of set current :
STATUS,I response example I, RANGE=100mA, VALUE=89.0mA
Read out of set current limits:
STATUS,IL response example IL, RANGE=100mA, VALUE=100mA
Read out of set ramp speed:
STATUS,RAMP response example RAMP, RANGE=3000V/s, VALUE=1000V/s
Commands to read the actual measurement values
Measuring of the actual output voltage
STATUS,MU response example UM, RANGE=3000V, VALUE=2.459kV
Measurement of the output current:
STATUS,MI response example IM, RANGE=100mA, VALUE=89.1mA

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0)351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0)351 / 26 996 - 21
16 D - 01454 Radeberg/ Rossendorf
Read out of unit status
STATUS,DI response DI, b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
0 1
#define IpErr b15 no input error input error
#define Ramp b14 no ramp ramp
#define CutOut b13 - emergency off
#define TpErr b12 no trip error trip error
#define F3 b11 reserved
#define F2 b10 reserved
#define menu1 b9 submenu off submenu on
#define menu0 b8 menu off menu on
#define err b7 no error error
#define Creg b6 no current control current control
#define Vreg b5 no voltage control voltage control
#define pol b4 negative positive
#define inh b3 no ext. inhibit external inhibit
#define local b2 remote local
#define kilena b1 kill disable kill enable
#define on b0 off high voltage is ON
Read of LAM Status
STATUS,LAM response LAM,ERROR (Inhibit during Kill enable,
no voltage and no current loop
is locked)
LAM,INHIBIT (external inhibit has been scanned)
LAM,TRIP ERROR (software current trip occurred)
LAM,INPUT ERROR (wrong input string has been
scanned from interface)
LAM,OK (no Look At Me status has been
found )
Read of unit identifier
ID response example ID, iseg Spezialelektronik r3.02 sn.680041 Type HPN 30 107

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0) 351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0) 351 / 26 996 - 21
D - 01454 Radeberg/ Rossendorf 17
7.2 SCPI-set of commands
In menu „F10“ „SCPI“ has to be selected.
Setting commands:
Command to set the HV:
:VOLTage <space><voltage>kV example :VOLT 2.458kV
Command to set the HV:
:LIMIT:VOLTage<space> <voltage>kV example :LIMIT:VOLT 2.850kV
Command to set the output current:
:CURRent <space ><current>mA example :CURR 89mA
Command to set the output current limit:
:LIMIT:CURRent <space ><current>mA example :LIMIT:CURR 100mA
Command to set the ramp speed of output voltage:
:CONFigure:RAMP<space> <ramp speed>V/s example RAMP 1000V/s
Command to switch the HV ON and OFF:
:VOLTage<space> ON
:VOLTage<space> OFF
Command for „Emergency OFF“ (The HV generation has been shut off permanently and
:VOLTage<space> EMCY<space> OFF the set-values for voltage and current have been set to 0.)
Command to set the KILL-Function on „Enable“ or „Disable“
:CONFigure:KILL<space> ENable
:CONFigure:KILL<space> DISable
Read out of the settings commands
Read out of SET HV:
:READ:VOLTage? Response example U, RANGE=3.000kV, VALUE=2.458kV
Read out of SET HV limit:
:READ:LIMIT:VOLTage? Response example UL, RANGE=3.000kV, VALUE=2.850kV
Read out of SET current :
:READ:CURRent? Response example I, RANGE=100mA, VALUE=89mA
Read out of SET current limit:
:READ:LIMIT:CURRent? Response example IL, RANGE=100mA, VALUE=100mA
Read out of SET Ramp:
:READ:RAMP? Response example Ramp, RANGE=3000 V/s, VALUE=1000 V/s
Read out of unit identifier:
:READ:IDNT? Response example ID, iseg Spezialelektronik r3.02 sn.680043 Type HPN 30 107

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0)351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0)351 / 26 996 - 21
18 D - 01454 Radeberg/ Rossendorf
Commands to read the actual measurement values
Measurement of the output voltage:
:MEASure:VOLTage? Response example UM, RANGE=3.000kV, VALUE=2.459kV
Measurement of the output current:
:MEASure:CURRent? Response example IM, RANGE=100mA, VALUE=89.1mA
Read out of the unit Status
:READ:STATus? response DI, b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
0 1
#define IpErr b15 no input error input error
#define Ramp b14 no ramp ramp
#define CutOut b13 - emergency off
#define TpErr b12 no trip error trip error
#define F3 b11 reserved
#define F2 b10 reserved
#define menu1 b9 submenu off submenu on
#define menu0 b8 menu off menu on
#define err b7 no error error
#define Creg b6 no current control current control
#define Vreg b5 no voltage control voltage control
#define pol b4 negative positive
#define inh b3 no ext. inhibit external Inhibit
#define local b2 remote local
#define kilena b1 kill disable kill enable
#define on b0 off high voltage is on
Read out of the LAM Status
:READ:LAM? response LAM,ERROR (Inhibit during Kill enable,
no voltage and no current loop
is locked)
LAM,INHIBIT (extern Inhibit has been scanned)
LAM,TRIP ERROR (software current trip occurred)
LAM,INPUT ERROR (wrong input string has been
scanned from interface)
LAM,OK (no Look At Me status has been
found)

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0) 351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0) 351 / 26 996 - 21
D - 01454 Radeberg/ Rossendorf 19
7.3 Common commands
*RST reset the device
*IDN? Response example
ID, iseg Spezialelektronik r3.02 sn.680034 Type HPN 30 107
*GTL go to local, local-button is enabled
*LLO local logout, Local-Button is disabled
*CLS clear Status
Software release 4.02:
*INSTR? Response example
Instruction type,SCPI
*INSTR,SCPI to change SCPI-instruction
*INSTR,ET to change ET-instruction
Software release 4.03:
*ECHO*ON Echo on
Response example Echo on (only RS232)
*ECHO*OFF Echo off
Response example Echo off (only RS232)

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: [email protected] Tel ++ 49 (0)351 / 26 996 - 0
Bautzner Landstr. 23 http://www.iseg-hv.de Fax ++ 49 (0)351 / 26 996 - 21
20 D - 01454 Radeberg/ Rossendorf
8. Description of analogue I/O
ATTENTION ! All control inputs and outputs are indirect-coupled to the HV-OUT.
All control inputs and outputs are available at the connector on the rear side of the unit (instead
RS232 connector).
You can choose the analogue interface “aIF” in the menu 09 “Change interface” and then switch push
button “LOCAL” in order to switch to remote control , the yellow LED “REM” is flashing now. (
exception see menu “SET” , function 08 ).
By pushing LOCAL again the mode runs back to manual mode and „HV-OFF” .
Analog I/O with male SUB - D - 9 connector
Pin 1 @GND
Pin 2 VI-MON Current monitor
Pin 3 INHIBIT TTL-level / Input Low = active: ⇒VOUT = 0 High / open:⇒VOUT according setting
Pin 4 VI-SET Current control
Pin 5 Cmode TTL-level / Output Low = Current control mode (CC) High = Voltage control mode (CV)
Pin 5 n.c. Option: Cmode
TTL-level / Output actual control mode of the unit,
Low = Current control mode (CC) High = Voltage control mode (CV)
Pin 6 @GND
Pin 7 VV-MON Voltage monitor
Pin 8 VV-SET Voltage control
Pin 9 VREF Internal reference voltage VREF = 5 V / 1 mA
Control Inputs
Remote Control Voltage (CV): VV-SET = 0 to 5 V
The output voltage is proportionally to the external control voltage of 0 to 5 V DC. For this purpose
following connections have to be provided: control voltage pos. (+) to pin 8 (VV-SET), control voltage
GND to pin 6 (@GND-analogue indirect-coupled to GND-HV and metal box) .
Example: HPp 40 756
Maximum voltage = 4 kV
5.0 V control voltage corresponds to 4 kV output voltage
2.5 V control voltage corresponds to 2 kV output voltage
1.0 V control voltage corresponds to 0,8 kV output voltage
Remote Control Current (CC): VI-SET = 0 to 5 V
The output current can be set proportionally to an external control voltage of 0 to 5 V DC. For this
purpose following connections have to be provided: control voltage pos. (+) to pin 4 (VI-SET), control
voltage GND to pin 6 (@GND-analogue indirect-coupled to GND-HV and metal box).
Example: HPp 40 756
Maximum current = 75 mA
5.0 V control voltage corresponds to 75 mA output current (“KILL” must be disable!)
2.5 V control voltage corresponds to 37,5 mA output current
1.0 V control voltage corresponds to 15 mA output current