Spellman SLM20-300, SLM1-300, SLM3-300, SLM15-300, SLM30-300 Instruction Manual

R

Instruction Manual

SLM SERIES

High Voltage Power Supply

MODEL :
SERIAL# :
DATE :

SPELLMAN
HIGH VOLTAGE ELECTRONICS
CORPORATION

475 Wireless Blvd.
Hauppauge, New York, 11788

[phone]*FAX: [phone]*
E-mail: [e-mail]
Website: www.spellmanhv.com

SLM MANUAL 118072-001 Rev A

PAGE 1 OF 3

SPELLMAN HIGH VOLTAGE ELECTRONICS CORPORATION

300W-1200W HIGH
VOLTAGE MODULE

Spellman’s SLM Series of high voltage modules are
designed for OEM applications up to 70kV at 1200 watts.
Its universal input, small package size and choice of three
standard digital interfaces simplifies integrating the SLM
into your system design. Models are available in either
positive or negative polarity. The SLM is fully arc and
short protected. Excellent regulation specifications are
provided along with outstanding stability performance.

TYPICAL APPLICATIONS

Capacitor Charging
HiPot Testing
CRT Testing
Electrostatics
E Beam Systems
CW Lasers

FIRMWARE CONFIGURATIONS

STANDARD BASED FEATURES

AOL Adjustable Overload Trip
AT Arc Trip
NAD No Arc Detect
NSS No Slow Start
PSS Programmable Slow Start
RFR Remote Fault Reset
RMI Remote Mode Indicators
ROV Remote Overvoltage Adjust

SPECIFICATIONS

Input Voltage:

Power factor corrected input, ≥0.98
90-264Vac, 47-63 Hertz, for 300 watt units
180-264Vac, 47-63 Hertz for 600 and 1200 watt units

Output Voltage:

11 models—1kV to 70kV

Output Polarity:

Negative or positive, specify at time of order

Local Indicators:

Arc, HV On, Temp Error, OVP, I Mode
Power On, OC, Reg Error

Power:

3 power ranges available—300, 600 and 1200 watts.
Other power levels available on special order.

Voltage Regulation:

≤0.01% of rated output voltage over specified
input voltage range
≤0.01% of rated output voltage for a full load change

Current Regulation:

≤0.01% of rated output current over specified
input voltage range

≤0.01% of rated output current for a ±100μA
for a full voltage change

Ripple:

≤0.2% rms of maximum rated voltage,
measured with a 10 foot long HV cable

Stability:

≤50ppm/hr after a 2 hour warm up

Temperature Coefficient:

≤100ppm per degree C

Environmental:

Temperature Range:

Operating: 0˚C to 40˚C
Storage: -40˚C to 85˚C

Humidity:

20% to 85% RH, non-condensing.

Control Interface

Local Interface:

Potentiometers are provided to adjust voltage and current.

Remote Interface: USB, Ethernet and RS-232 are standard,

implemented with 12 bits of resolution.
All digital monitors have an accuracy specification of 2%.

Control Software: A VB GUI will be provided for

RS-232/USB, the Ethernet interface will have an
embedded applet for control.

HV Control Enable/Interlock:

A dry contact, hardware based interlock is provided for
remote mode. In local mode this I/O is the enable.

Monitor Signals:

Voltage and current monitor signals are scaled 0-10Vdc
equals 0-100% of full scale, accuracy is 1%.

Cooling:

Forced air

Dimensions:

300/600 watts:

4.75˝ H X 6˝ W X 12˝ D (120.65mm x 152.4mm x 304.8mm)
1200 watts:

4.75˝ H X 12˝ W X 12˝ D (120.65mm x 304.8mm x 304.8mm)

Weight:

300/600 watts: 14 pounds (6.35kg)
1200 watts: 26 pounds (11.8kg)

• Compact & Lightweight

• Models from 1kV-70kV, 300W, 600W AND 1200W

• Universal Input, Power Factor Corrected

• Low Cost Modular Design

• Standard Digital Interfaces: USB,

Ethernet and RS-232

• CE Compliant, UL Recognized

SLM

1200W

300W-600W

www.spellmanhv.com/manuals/SLM

Corporate Headquarters

Hauppauge, New York USA

[phone] FAX: [phone]

e-mail: [e-mail]

www.spellmanhv.com

128035-001 REV. M

Spellman High Voltage is an ISO 9001:2008 and ISO 14001:2004 registered company

Copyright © 2006 Spellman High Voltage Electronics Corp.

ETHERNET DIGITAL INTERFACE—
J5 8 PIN RJ45 CONNECTOR

PIN SIGNAL SIGNAL PARAMETERS

1 TX+ Transmit Data +
2 TX- Transmit Data ­3 RX+ Receive Data +
4 NC No Connection
5 NC No Connection
6 RX- Receive Data ­7 NC No Connection
8 NC No Connection

PAGE 2 OF 3

SLM SELECTION TABLE- 300W

300 Watt

kV mA Model

1 300 SLM1*300
3 100 SLM3*300
5 60 SLM5*300
10 30 SLM10*300
15 20 SLM15*300
20 15 SLM20*300
30 10 SLM30*300
40 7.5 SLM40*300
50 6 SLM50*300
60 5 SLM60*300
70 4.28 SLM70*300

RS-232 DIGITAL INTERFACE—
J3 9 PIN FEMALE D CONNECTOR

PIN SIGNAL SIGNAL PARAMETERS

1 NC No Connection
2 TX out Transmit Data
3 RX in Receive Data
4 NC No Connection
5 SGND Ground
6 NC No Connection
7 NC No Connection
8 NC No Connection
9 NC No Connection

*Specify “P” for positive polarity or “N” for negative polarity

USB DIGITAL INTERFACE—
J4 4 PIN USB “B” CONNECTOR

PIN SIGNAL SIGNAL PARAMETERS

1 VBUS +5 Vdc
2

D- Data ­3 D+ Data +
4 GND Ground

SLM ANALOG INTERFACE—
J2 15 PIN MALE D CONNECTOR

PIN SIGNAL SIGNAL PARAMETERS

1 Power Supply Fault Open Collector, 35V @ 10mA Maximum
2

Current Program In 0 to 10V=0 to 100% Rated Output, Zin=10MΩ
3 Voltage Program In 0 to 10V=0 to 100% Rated Output, Zin=10MΩ
4 NC No Connection
5 Local Voltage Prog. Multi-turn front panel potentiometer
6 NC No Connection
7 Local Current Prog. Multi-turn front panel potentiometer
8 Voltage Monitor 0 to 10V=0 to 100% Rated Output, Zout =4.99k, 1%
9 Signal Ground Ground

10 Current Monitor 0 to 10V=0 to 100% Rated Output, Zout =4.99k, 1%
11 HV Enable Input Connect to Pin 12 to HV Enable Supply
12 HV Enable Output +15V @ Open, ≤15mA @ Closed
13 NC No Connection
14 HV On Output Signal Open Collector, 35V @10mA Maximum
15 Spare No Connection

SPELLMAN HIGH VOLTAGE ELECTRONICS CORPORATION

300W-1200W HIGH
VOLTAGE MODULE

SLM

SLM SELECTION TABLE- 600W

600 Watt

kV mA Model

1 600 SLM1*600
3 200 SLM3*600
5 120 SLM5*600
10 60 SLM10*600
15 40 SLM15*600
20 30 SLM20*600
30 20 SLM30*600
40 15 SLM40*600
50 12 SLM50*600
60 10 SLM60*600
70 8.56 SLM70*600

*Specify “P” for positive polarity or “N” for negative polarity

SLM SELECTION TABLE- 1200W

1200 Watt

kV mA Model

1 1200 SLM1*1200
3 400 SLM3*1200
5 240 SLM5*1200
10 120 SLM10*1200
15 80 SLM15*1200
20 60 SLM20*1200
30 40 SLM30*1200
40 30 SLM40*1200
50 24 SLM50*1200
60 20 SLM60*1200
70 17.14 SLM70*1200

*Specify “P” for positive polarity or “N” for negative polarity

Input Line Connector:

IEC320 cord set with integrated EMI filter

Output Cable:

A detachable 10’ (3.3m) long shielded HV cable is provided

Regulatory Approvals:

Compliant to 204/108/EC, the EMC Directive and 2006/95/EC,
the Low Voltage Directive. UL/CUL recognized, File 227588.

Corporate Headquarters

Hauppauge, New York USA

[phone] FAX: [phone]

e-mail: [e-mail]

www.spellmanhv.com

128035-001 REV. M

Spellman High Voltage is an ISO 9001:2008 and ISO 14001:2004 registered company

Copyright © 2006 Spellman High Voltage Electronics Corp.

PAGE 3 OF 3

SPELLMAN HIGH VOLTAGE ELECTRONICS CORPORATION

300W-1200W HIGH
VOLTAGE MODULE

SLM

DIMENSIONS: in.[mm]

FRONT VIEW

BOTTOM VIEW

12.00 [304]

4.75 [120]

10.50 [266]

0.75 [19]

10-32 BLIND
PEMS
4 PLCS

6.00 [152]

1.06 [27]

3.88 [99]

DANGER

HIGH

VOLTAGE

SIDE VIEW

J2 CONTROL I/O

FILAM

ENT

J4

USB

J5

ETHERNET

J3

RS 232

FRONT VIEW

BOTTOM VIEW

4.75 [120]

10.50 [266]

0.75 [19]

1.06 [27]

9.875 [250.36]

SIDE VIEW

10-32 BLIND
PEMS
4 PLCS

DANGER

HIGH

VOLTAGE

J2 CONTROL I/O

FILAM

ENT

J4

USB

J5

ETHERNET

J3

RS 232

AIR

FLOW

AIR

FLOW

1200 Watt

300/600 Watt

Corporate Headquarters

Hauppauge, New York USA

[phone] FAX: [phone]

e-mail: [e-mail]

www.spellmanhv.com

128035-001 REV. M

Spellman High Voltage is an ISO 9001:2008 and ISO 14001:2004 registered company

Copyright © 2006 Spellman High Voltage Electronics Corp.

IMPORTANT SAFETY PRECAUTIONS

SAFETY

THIS POWER SUPPLY GENERATES VOLTAGES THAT ARE DANGEROUS AND MAY BE FATAL.

OBSERVE EXTREME CAUTION WHEN WORKING WITH THIS EQUIPMENT.

High voltage power supplies must always be grounded.

Do not touch connections unless the equipment is off and the

Capacitance of both the load and power supply is discharged.

Allow five minutes for discharge of internal capacitance of the power supply.

Do not ground yourself or work under wet or damp conditions.

SERVICING SAFETY

.

Maintenance may require removing the instrument cover with the power on.

Servicing should be done by qualified personnel aware of the electrical hazards.

WARNING note in the text call attention to hazards in operation of these units

that could lead to possible injury or death.

CAUTION notes in the text indicate procedures to be followed to avoid possible

damage to equipment.

Copyright © 2000, Spellman High Voltage Electronics Corporation. All Rights Reserved.

This information contained in this publication is derived in part from proprietary and patent data. This information has

been prepared for the express purpose of assisting operating and maintenance personnel in the efficient use of the

model described herein, and publication of this information does not convey any right to reproduce it or to use it for

any purpose other than in connection with installation, operation, and maintenance of the equipment described.

118004-001 REV. B

WICHTIGE SICHERHEITSHINWEISE

SICHERHEIT

DIESES HOCHSPANNUNGSNETZTEIL ERZEUGT LEBENSGEFÄHRLICHE HOCHSPANNUNG.

SEIN SIE SEHR VORSICHTIG BEI DER ARBEIT MIT DIESEM GERÄT.

Das Hochspannungsnetzteil muß immer geerdet sein.

Berühren Sie die Stecker des Netzteiles nur, wenn das Gerät ausgeschaltet ist und die elektrischen

Kapazitäten des Netzteiles und der angeschlossenen Last entladen sind.

Die internen Kapazitäten des Hochspannungsnetzteiles benötigen ca. 5 Minuten, um sich zu entladen.

Erden Sie sich nicht, und arbeiten Sie nicht in feuchter oder nasser Umgebung.

SERVICESICHERHEIT

Notwendige Reparaturen können es erforderlich machen, den Gehäusedeckel während des Betriebes zu

entfernen.

Reparaturen dürfen nur von qualifiziertem, eingewiesenem Personal ausgeführt werden.

“WARNING” im folgenden Text weist auf gefährliche Operationen hin, die zu Verletzungen oder zum Tod

führen können.

“CAUTION” im folgenden Text weist auf Prozeduren hin, die genauestens befolgt werden müssen, um

eventuelle Beschädigungen des Gerätes zu vermeiden.

118004-001 REV. B

PRECAUTIONS IMPORTANTES POUR VOTRE SECURITE

CONSIGNES DE SÉCURITÉ

CETTE ALIMENTATION GÉNÈRE DES TENSIONS QUI SONT DANGEUREUSES ET PEUVENT ÊTRE FATALES.

OYEZ EXTRÊMENT VIGILANTS LORSQUE VOUS UTILISEZ CET ÉQUIPEMENT.

S

Les alimentations haute tension doivent toujours être mises à la masse.

Ne touchez pas les connectiques sans que l’équipement soit éteint et que la capacité à la fois de la charge et de

l’alimentation soient déchargées.

Prévoyez 5 minutes pour la décharge de la capacité interne de l’alimentation.

Ne vous mettez pas à la masse, ou ne travaillez pas sous conditions mouillées ou humides.

CONSIGNES DE SÉCURITÉ EN CAS DE REPARATION

La maintenance peut nécessiter l’enlèvement du couvercle lorsque l’alimentation est encore allumée.

Les réparations doivent être effectuées par une personne qualifiée et connaissant les risques électriques.

Dans le manuel, les notes marquées « WARNING » attire l’attention sur les risques lors de la manipulation de ces

équipements, qui peuvent entrainer de possibles blessures voire la mort.

Dans le manuel, les notes marquées « CAUTION » indiquent les procédures qui doivent être suivies afin d’éviter

d’éventuels dommages sur l’équipement.

118004-001 REV. B

IMPORTANTI PRECAUZIONI DI SICUREZZA

SICUREZZA

QUESTO ALIMENTATORE GENERA TENSIONI CHE SONO PERICOLOSE E

POTREBBERO ESSERE MORTALI.

PONI ESTREMA CAUTELA QUANDO OPERI CON QUESO APPARECCHIO.

Gli alimentatori ad alta tensione devono sempre essere collegati ad un impianto di terra.

Non toccare le connessioni a meno che l’apparecchio sia stato spento e la capacità interna

del carico e dell’alimentatore stesso siano scariche.

Attendere cinque minuti per permettere la scarica della capacità interna dell’alimentatore

ad alta tensione.

Non mettere a terra il proprio corpo oppure operare in ambienti bagnati o saturi d’umidità.

SICUREZZA NELLA MANUTENZIONE.

Manutenzione potrebbe essere richiesta, rimuovendo la copertura con apparecchio

acceso.

La manutenzione deve essere svolta da personale qualificato, coscio dei rischi elettrici.

Attenzione alle AVVERTENZE contenute nel manuale, che richiamano all’attenzione ai

rischi quando si opera con tali unità e che potrebbero causare possibili ferite o morte.

Le note di CAUTELA contenute nel manuale, indicano le procedure da seguire per evitare

possibili danni all’apparecchio.

118004-001 REV. B

Table of Contents

PAGE

1. INTRODUCTION

1.1 Description of the SLM Series.............................................................................1

1.2 SLM Specifications..............................................................................................1

1.3 Standard Features.................................................................................................2

1.4 System Status and Fault Diagnostic Display .......................................................3

1.5 Interpreting the Model Number ...........................................................................4

2. INSPECTION & INSTALLATION

2.1 Initial Inspection ..................................................................................................5

2.2 Mechanical Installation........................................................................................5

3. OPERATING INSTRUCTIONS

3.1 Operation .............................................................................................................7

3.2 Standard Features.................................................................................................8

4. PRINCIPLES OF OPERATION

4.1 AC to DC Rectifier and Associated Circuits .......................................................13

4.2 High Frequency Inverter......................................................................................13

4.3 High Voltage Circuits..........................................................................................13

4.4 Control Circuits....................................................................................................14

4.5 Options.................................................................................................................14

5. OPTIONS

5.7 Custom Designed Models....................................................................................15

6. MAINTENANCE

6.1 Periodic Servicing................................................................................................16

6.2 Performance Test .................................................................................................16

6.3 High Voltage Dividers .........................................................................................16

7. FACTORY SERVICE

7.1 Warranty Repairs .................................................................................................17

7.2 Factory Service Procedures .................................................................................17

7.3 Ordering Options and Modifications ...................................................................17

7.4 Shipping Instructions ...........................................................................................17

APPENDIX

A. Specification Controls (Custom Models Only)

SLM MANUAL i 118073-001 Rev C

Chapter 1

 Output Voltage:

22 models: 1kv to 70kv

INTRODUCTION

1.1 Description of the SLM Series

he SLM Series of high voltage generator modules are
designed for OEM applications up to 70kV and up to

T

1200watts. Its universal input, small package size and
choice of three standard digital interfaces simplifies
integrating the SLM into your system. DSP based control
circuitry provides excellent regulation, along with
outstanding stability performance. User programmable
firmware option makes the operation of the SLM flexible.

The dramatically reduced size of the SLM module,
compared to traditional high voltage modules, is obtained
by a state of the art off-line resonant converter. The
resonant converter utilizes a unique control scheme,
which allows constant frequency operation while
maintaining high efficiency. The high efficiency is
obtained by zero current switching (ZCS) resonant
control. High operating frequency, typically 50 kHz,
allows for low ripple and excellent dynamic response
capabilities.

The DC output voltage and current are controllable over
the full range of operation. Monitoring and control
signals are provided for simple, yet flexible control of the
power supply. The SLM series operates from 90 ­265Vac, at 50/60 Hz single phase for the 300Watt models
and 180–264Vac, at 50/60 Hz single phase for the
600Watt and 1200Watt models. The input is power
factor corrected and the SLM series operates at full power
continuous. The ambient temperature must be kept below
the maximum rating as specified in 1.2. The standard
warranty applies to the modules. Consult factory about
the warranty for custom SLM modules.

1.2 SLM Specifications

 Input Voltage:

90-264Vac 47-63Hz, for 300watt models

180-264Vac 47-63Hz, for 600watt models

180-264Vac 47-63Hz, for 1200watt models

 Power Factor:

FL: ≥ 0.99

 Voltage Regulation:

≤ 0.01% of rated output voltage over specified input
voltage range
≤ 0.01% of rated output voltage for a full load

change

 Current Regulation:

≤ 0.01% of rated output current over specified input
voltage range
≤ 0.01% of rated output current for a ±100μA for a
full voltage change

 Ripple: ≤ 0.2% rms of maximum rated voltage,

measured with a 10 foot long HV cable

 Polarity: Positive or Negative polarity with respect

to ground. (Specify at time of ordering).

 Stability: ≤ 50ppm/hr after a 2 hour warm up
 Temperature Coefficient: ≤ 100ppm / C.
 Temperature:

Operating: 0C to 40C
Storage: -40C to +85
Humidity: 20% to 85% RH, non-condensing

Control Interface

 Local Interface: Voltage and current are externally

programmable over the entire range from zero to
maximum rating via 0-10VDC input.

 +10Vdc Reference: A +10Vdc reference is provided

for local programming via two potentiometers to be
used to adjust voltage and current.

 Remote Interface: USB, Ethernet and RS232 are

standard, implemented with 12 bits of resolution.
All digital monitors have an accuracy specification of
2%.

 Control Software: A VB GUI will be provided for

RS-232/USB, the Ethernet interface will have an
embedded applet for control.

 Monitor Signals:

Voltage and current monitor signals are scaled 0­10Vdc equals 0-100% of full scale. Accuracy is 1

.

%.

SLM MANUAL 1 118073-001 Rev C

 HV Control Enable/Interlock:

A dry contact, hardware based interlock is provided

for remote mode. In local mode this I/O is the enable.

IMPORTANT

This control signal in not a safety

interlock and should not be used for

protection from high voltage generation

for safety purposes.

 Cooling:

Forced air

 Dimensions:

4.75˝ H X 6˝ W X 12˝ D (120.65mm x 152.4mm x

304.8mm)

 Weight:

14 pounds (5.44kg)

 Input Line Connector:

IEC320 cord set with integrated EMI filter

 Output Cable:

A detachable 10’ (3.3m) long shielded HV cable is

provided

1.3 Standard Features

The SLM series incorporates several standard features
designed to optimize user operation.

Standard Firmware Configurable
Features:

Slow Start:

Provides a gradual increase in high voltage output until
the maximum set point is reached. This ramp time can be
configured in the firmware from 0.1 seconds to 60
seconds, and is stored internally in the SLM memory. The
factory default setting is 5 seconds.

Adjustable Overload Trip: AOL

The overload trip protection feature shuts down the high
voltage output when the current exceeds the limit set by
the current control. The DSP inhibits the generation of
high voltage and reverts the unit to HV OFF mode,
illuminating the OVER CURRENT indicator. This can
be enabled in the firmware and is stored internally in the
SLM memory. When AOL is disabled the default
overcurrent trip point is 110% of full-scaled output. The
factory default setting for AOL is disabled.

Remote Overvoltage Adjust: ROV

The overvoltage trip protection feature shuts down the
high voltage output when the voltage exceeds the limit
configured in the firmware. The DSP inhibits the
generation of high voltage and reverts the unit to HV OFF
mode, illuminating the OVER VOLTAGE indicator.
This can be enabled in the firmware and is adjustable
from 0% to 110% of full-scaled output voltage. The select
values are stored internally in the SLM memory. When
ROV is disabled the default overvoltage trip point is
110% of full-scaled output. The factory default setting for
ROV is disabled.

ARC Trip: AT

The SLM provides firmware configurable arc detection.
The user can set the arc detection parameters to custom fit
their requirements. The follow parameters are
programmable in the firmware and are
the SLM memory:

Arc Count:
This sets how many arc’s are require within the selected
time period to cause an arc shutdown. It is programmable
from 1 arc to 20 arc. The factory default setting is 8 arc.

Time Period:
This sets the time period that the selected arc count must
occur within to cause an arc shutdown .It is
programmable from 1 second to 60 seconds.
default setting is 20 seconds.

Quench Time:
This sets the length of time that the high voltage is
shutdown to quench the arc after an arc occurs. It is
programmable from 100ms to 500ms. The factory default
setting is 500ms.

Re-Ramp:
After an arc occurs, the kV output will slow start at the
programmed ramp time. If Re-ramp is disabled then there
will be no ramping after an arc. The factory default
setting is enabled.

The SLM will not accept Arc Count and Time Period

setting that exceed 1 arc per second.

No Arc Detect: NAD

When No Arc Detect mode (NAD) is enabled, the HVPS
has no arc shutdown protection. The HVPS is designed to

handle an arc rate of 1 arc per second.

stored internally in

The factory

Exceeding 1 arc
per second could cause damage to the HVPS.
HVPS failure caused by excessive arc will not be
covered under the warranty

setting for NAD is disabled.

. The factory default

SLM MANUAL 2 118073-001 Rev C

Watchdog Timer

If there is no communication between the HVPS and the
host computer for more than 10 seconds the HV output
will shutdown and the Watchdog Timer fault will be sent
via the digital communication when and if
communication is resumed. This can be enabled via the
digital communication and is defaulted to disable upon
power up.

Standard Input Features:

Power Factor and Universal Input: The input voltage

of the SLM can operate within the range from 90Vac to
265Vac for the 300Watt model and at 180–264Vac, for
the 600Watt model. The power factor is actively
corrected across this entire range and is better than 0.99 at
full load.

Internal EMI Filter and Fuse Protection: An internal

EMI filter and fuse provide protection against line voltage
surges and power supply faults.

Remote Operating Features

Remote Control: USB, Ethernet and RS232 are standard.

A provided G.U.I allow user to control the unit via RS232
and USB interfaces. An imbedded Applet web browser
allow user to control the unit via Ethernet. Refer to SLM
digital protocol spec for details.

Remote Monitor: Allows remote monitoring of the

Output voltage, current, HV On clock counter, and user
configurable firmware features via the USB, Ethernet or
RS232.

Remote Programming: Allows remote programming of

the output voltage, current and user configurable firmware
features via the USB, Ethernet or RS232.

HV Enable/Interlock: In local mode, allows remote

ON/OFF control of the high voltage. In remote mode, the
hardware based dry contact closure must be closed in
order to enable the high voltage via the USB, Ethernet or
RS232.

 OVER CURRENT FAULT: Indicates the over

current protection circuitry has caused the high
voltage to turn off. This fault will occur if the output
current exceeds 110% of full scale. If AOL is enable
this fault will occur when the current exceeds the
current program set point. This fault is indicated by
illumination of over current LED status on the front
panel and via RS-232, USB or Ethernet as Over
Current.

 OVERVOLTAGE: Indicates the over voltage

protection circuitry has caused the high voltage to
turn off. This fault will occur if the output voltage
exceeds 110% of full scale. If ROV is enable this
fault will occur when the voltage exceeds the
programmed ROV setpoint. This fault is indicated by
over voltage LED status on the front panel and via
the RS-232, USB or Ethernet as Over Voltage.

 ARC FAULT: Indicates that the programmed arc

count was exceeded within programmed time period.
This fault is indicated by steady state illumination of
Arc Fault LED status on front panel and via RS-232,
USB or Ethernet as Arc Fault. The LED will pulse
for each arc, but will be a steady state ON if a
shutdown occurs.

 REGULATION ERROR: Indicates a failure in the

voltage, current or power regulation circuitry. This
fault usually occurs when there is a lack of output
power to maintain regulation. This fault is indicated
by illumination of the Regulation Error LED status
on front panel and via RS-232, USB or Ethernet as
Under Current.

 OVER TEMPERATURE: Indicates either a failure

in the cooling system that would cause the internal
heat sink temperature to exceed the operating range
or the ambient temperature to exceed 40 degrees C,
resulting in shutdown of HV. This fault is indicated
by Over Temperature LED status on the front panel
and via RS-232, USB or Ethernet as Over
Temperature.

1.4 System Status and Fault
Diagnostic Display

If a fault occurs, the power supply will revert to the
Shutdown mode indicated by extinguishing of HV ON
LED and via RS-232 as HV OFF. To reset a fault in local
mode the enable must be reset. To reset a fault in remote
mode a HV ON or a RESET FAULTS command must be
sent via the RS-232, USB or Ethernet.

SLM MANUAL 3 118073-001 Rev C

 PS Fault Indication: PS Faults an open collector

output with a 1k ohm impedance on J2-1, indicates
that a faults has occurred. High = no faults

 HV On Indication: HV On Signal is an open

collector output with a 1k ohm impedance on J2-14,
indicates that HV is enabled. High = HV OFF

 HV On LED: When the high voltage status is “On”

state it is indicated by HV ON LED status on the
front panel.

 Power On LED: When the input power is applied to

the unit it is indicated by PWR ON LED status on the
front panel.

 I MODE: Indicates the output current regulator

circuit is maintaining current regulation. This is

indicated by I Mode LED status on the front panel
and via RS-232, USB or Ethernet as I Mode.

1.5 Interpreting the Model Number:

The model number of the power supply describes its
capabilities. After the series name is:

(1) The maximum voltage in kilovolts.
(2) The polarity of the output – positive (P), or

negative (N).

(3) The maximum output in watts.
(4) Custom “X” number representing details listed

in a separate specification control drawing.

SLM 70 P 600/X(#)

Serie
Nam

Maximu
Voltag

Polarity

Maximu
Powe

Custo

"X" Number

WARNING

TOP COVER

FRONT PANEL

J6

HV OUT

J1 AC INPUT

CURRENT MODE

HV 0N

OVER CURRENT

OVER TEMPERATURE

STATUS LIGHTS

J2 CONTROL I/O

J3

RS232

REGULATION ERROR
PWR ON

LOCAL CURRENT ADJ

LOCAL VOLT ADJ

ARC
OVER VOLTAGE

J5

ETHERNET

J4

USB

Figure 1.1 LED Legend and Connector Assignment

(shown 300W and 600W)

SLM MANUAL 4 118073-001 Rev C

Chapter 2

INSPECTION AND
INSTALLATION

nitial inspection and preliminary checkout procedures
are recommended. For safe operation, please follow

I

the step-by-step procedures described in Chapter 3,

Operating Instructions.

2.1 Initial Inspection

Inspect the package exterior for evidence of damage due
to handling in transit. Notify the carrier and Spellman
immediately if damage is evident. Do not destroy or
remove any of the packing material used in a damaged
shipment. After unpacking, inspect the panel and chassis
for visible damage.

Fill out and mail the Warranty Registration card
accompanying the unit. Standard SLM high voltage
power supplies and components are covered by warranty.
Custom and special order models (with an X suffix in the
model number) are also covered by warranty.

1KV - 50KV

2.2 Mechanical Installation

The SLM series module power supplies are
designed for installation into existing or newly
developed OEM equipment. The power supply
can also easily fit into bench top applications or
test set requirements. Standard unit dimensions
are shown in Figure 2.1

For custom mounting requirements or specific
package size requirements consult Spellman’s
Sales Department. Spellman has many package
designs available, or can design a specific
enclosure for your requirements.

60KV - 70KV

1.06 3.88

12.00

4.75

6.00

4.75

10.50

.75

12.00

4X 10-32 FEMALE THD

BOTTOM VIEW

6.00

Figure 2.1 Unit Dimensions (300W and 600W)

SLM MANUAL 5 118073-001 Rev C

Figure 2.2 Unit Dimensions (1200W)

SLM MANUAL 6 118073-001 Rev C

Chapter 3

OPERATING INSTRUCTIONS

3.1 Operation

WARNING

THIS EQUIPMENT GENERATES

DANGEROUS VOLTAGES THAT MAY BE

FATAL. PROPER GROUNDING OF ALL HIGH

VOLTAGE EQUIPMENT IS ESSENTIAL.

IMPORTANT:

Before connecting the power supply to the

AC line, follow this step-by-step procedure.

Do not connect the power supply to the AC

line until Step F is reached.

Failure to follow these procedures may void

the warranty.

A) Insure that the high voltage cable is properly

installed and terminated to the load. Insure that all
circuits connected to the high voltage output are safely
interlocked against accidental contact. Insure external
load is discharged.

B) Check the input voltage rating on the serial

nameplate of the supply and make certain that this is the
rating of the available power source

C) PROPER GROUNDING TECHNIQUE: The

chassis of high voltage power supplies must be grounded,
preferably to a water system ground using copper pipe or
other earth ground. A ground stud is provided on the front
panel. See Figure 3.1 for a typical operating setup. The
return line from the load should be connected to the
power supply chassis. Using a separate external ground
at the load is not recommended. An IEC 320 connector is
provided for connection to the line voltage source. A
standard line cord is also provided.

D) Hook-up: Connect control and monitoring

connections as described in this manual.

E) For initial turn-on, program the voltage and

current for zero output. Connect the enable/disable signal
to disable.

F) The input power cable may now be connected to

the AC power line.

G) Enable the power supply via the enable/disable

hardware based, dry contact closure.

H) Slowly program the output voltage and current

to desired level. Monitor the output voltage and current
via the monitoring test points. Note equipment operation
is normal, i.e. load is behaving as predicted.

I) To turn high voltage off, use the enable/disable

signal. If equipment is to be kept off for extended
periods, disconnect power supply from line voltage
source.

WARNING

AFTER TURNOFF, DO NOT HANDLE THE LOAD

UNTIL THE CAPACITANCE HAS BEEN

DISCHARGED!

LOAD CAPACITANCE MAY BE DISCHARGED BY

SHORTING TO GROUND.

WARNING

THE VOLTAGE MONITOR ON THE POWER

SUPPLY FRONT PANEL DOES NOT READ THE

OUTPUT VOLTAGE WHEN THE POWER IS

TURNED OFF, EVEN IF A CHARGE STILL

EXISTS ON THE LOAD.

CAUTION

ALWAYS OPERATE THE UNIT WITH THE COVER

ON. DO NOT ATTEMPT TO ACCESS OR REPAIR

ANY INTERNAL CIRCUITS. DANGEROUS AND
LETHAL VOLTAGES ARE GENERATED INSIDE

THE MODULE.

SLM MANUAL 7 118073-001 Rev C

J2 CONTROL I/O

USB

J4

J5

ETHERNET

HV OUT

OUTPUT

LOAD

OUTPUT RETURN

Figure 3.1 Proper Grounding Technique

3.2 Standard Features

A note on remote interface circuitry and remote signal
grounding: whenever possible, electrical isolation should
be provided when interfacing with any high voltage
power supply. For enable/disable signal connections, an
isolated relay or optocoupler should be used. For PS
Fault indication an optocoupler should be used. If
possible, analog programming and monitoring signals
should be isolated via analog isolation amplifiers.
Spellman application engineers are available to assist in
interface circuitry design. All interface cables should be
properly shielded. All power supply signals should be
referenced to the power supplies signal ground or power
supply chassis ground

Local Programming potentiometers: The voltage and

current controls on the front panel can be used as follows:
For local current control, jump J2-2 to J2-7. For local
voltage control, jump J2-3 to J2-5. See Figure 3.2.

LOCAL PROGRAMMING: Allows local adjustment

of the output voltage and current level via an external
voltage source. 0-10Vdc signal is supplied to pin 3 of the
J2 for voltage programming and 0-10 Vdc signal is
supplied to Pin 2 J2 for current programming.
Programming signals should be referenced to Pin 9 of J2,
signal ground. By adjusting the voltage source from 0
volts (zero output) to 10 Vdc (full rated output) the
desired output can be selected. See Figure 3.3 for wiring
diagram and specifications.

Local Monitoring: Monitor outputs are made available

for monitoring the voltage and current output. The
monitor outputs are always positive regardless of the
output polarity, where zero 0 to 10 Vdc equals 0-100% of

J3J6

HAZARDOUS VOLTAGE PRESENT

output. See Figure 3.4 for monitoring wiring and see data
sheet for pin outs.

HV Enable/Interlock: In Local Mode allows ON/OFF

control of the high voltage. The hardware based dry
contact closure must be closed in to enable the high
voltage. In Remote Mode this I/O acts as an Interlock.
The hardware based dry contact closure must be closed in
order to enable the high voltage via the USB, Ethernet or
RS232. This can be done by connecting pins 11 and 12
on J2. See Figure 3.5.

REMOTE PROGRAMMING:

After establishing communication with the UUT as per
the SLM Digital Protocol spec. Switch the UUT to Remote
Mode by sending a Program Local/Remote Mode
command (this is done automatically upon opening of the
Spellman GUI/APPLET).If the unit is in Local Mode and
enabled prior to switching it to Remote Mode, the UUT
will shutdown and a P.S Fault indictor will occur when it
is switch to Remote Mode. A clear command can be sent

to clear this fault.
Remote Control: USB, Ethernet and RS232 are standard

Refer to SLM Digital Protocol spec for Details.

Remote Monitor: Allows remote monitoring of the

Output voltage and current via the USB, Ethernet or
RS232.

Remote Programming: Allows remote programming of

the Output voltage and current via the USB, Ethernet or
RS232.

SLM MANUAL 8 118073-001 Rev C

WARNING

It is extremely dangerous to use this

circuit to inhibit high voltage generation

for the purpose of servicing or

approaching any area of load considered

unsafe during normal use.

Figure 3.2 Local Programming Via Internal Front Panel Pot Voltage Source.

SLM MANUAL 9 118073-001 Rev C

Figure 3.3 Local Programming via External Voltage Source

SLM MANUAL 10 118073-001 Rev C

Figure 3.4 Remote Monitoring

SLM MANUAL 11 118073-001 Rev C

RELAY

Figure 3.5 Enable/Interlock Logic Control

WARNING

It is extremely dangerous to use this

circuit to inhibit high voltage generation

for the purpose of servicing or

approaching any area of load considered

unsafe during normal use.

SLM MANUAL 12 118073-001 Rev C

Chapter 4

PRINCIPLES OF OPERATION

he SLM Series of high voltage power supplies
utilizes sophisticated power conversion technology.

T

Advanced analog and power conversion techniques
are used in the SLM series. The intention of the
Principles of Operation is to introduce the basic function
blocks that comprise the SLM power supply. For details
on a specific circuit, consult Spellman’s Engineering
Department.

The SLM power supply is basically an AC to DC power
converter. Within the power supply, conversions of AC
to DC then to high frequency AC, then to high voltage
DC take place.

Typical SLM power supplies comprise a few basic
building blocks. These are: 1) AC to DC rectifier, 2)
Power Factor correction boost circuitry 3) High frequency
quasi-resonant inverter, 4) High voltage transformer and
rectifier circuits, and 5) Control and monitoring circuits.
The following is a brief description of each building
block.

4.1 Power Factor and Associated
Circuits

The SLM series can operate from 90 - 265Vac, for the
300Watt model and 180 –264Vac for the 600 and
1200Watt models. The input voltage is connected via a
typical IEC 320 type input connector. An internal EMI
filter and fuse housing is an integral part of the SLM
module. The input circuits actively correct the power
factor.

The input line voltage is applied to a current limit device
to reduce the initial inrush current. The input line voltage
is converted to a 400Vdc voltage via an active PFC
Converter.

WARNING

The energy levels used and generated by the

power supply can be lethal! Do not attempt to

operate the power supply unless the user has a

sufficient knowledge of the dangers and hazards

of working with high voltage. Do not attempt to

approach or touch any internal or external

circuits or components that are connected or

have been connected to the power supply. Be

certain to discharge any stored energy that may

be present before and after the power supply is

used. Consult IEEE recommended practices for

safety in high voltage testing #510-1983.

4.2 High Frequency Inverter

The SLM is a resonant converter operating in a zero
current switching, series resonant, parallel loaded
topology. MOSFET transistors switch the 400 Vdc
voltage to the resonant tank circuit. Typical operating
frequency is in the range of 35-65 KHz depending on
model. Control of the resonant circuit output is done by
the low voltage control circuits, and are isolated by an
isolated pulse transformer. The output of the resonant
circuit is applied to the primary of the high voltage
transformer.

4.3 High Voltage Circuits

The high voltage transformer is a step-up type. The
secondary of the high voltage transformer is connected to
the high voltage output circuit. The output circuit will
vary depending upon the rated output voltage and a full
wave Cockroft-Walton multiplier is used. A feedback
signal is generated by the high voltage resistor divider.
This feedback signal is sent to control circuits to provide
voltage regulation and monitoring. A current sense
resistor is connected at the low voltage end of the output
circuit. The circuit sense signal is sent to the control
circuits to provide current regulation and monitoring.

The high voltage output is connected to the output
limiting resistors. These resistors limit the peak surge
current in the event an arc or discharge occurs. The
limiting resistor output is connected to the output
connector provided.

WARNING

THE HVPS IS DESIGNED TO HANDLE AN

ARC RATE OF 1 ARC PER SECOND,

EXCEEDING 1 ARC PER SECOND COULD

CAUSE DAMAGE TO THE HVPS. HVPS

FAILURE CAUSED BY EXCESSIVE ARC

WILL NOT BE COVERED UNDER THE

WARRANTY.

SLM MANUAL 13 118073-001 Rev C

4.4 Control Circuits

Control circuits are used for regulation, monitoring,
pulse-width, control, slow-start and inhibit control.
Feedback signals are calibrated and buffered via general
purpose OP-AMPS. Pulse width control is accomplished
by a typical PWM type control I.C. Logic enable/disable
is provided by a logic gate I.C. Regulators generate ±
15Vdc and 10Vdc. DSP based control circuitry provides
excellent regulation, along with outstanding stability
performance

WARNING

LINE VOLTAGE IS PRESENT

WHENEVER THE POWER SUPPLY IS

CONNECTED TO EXTERNAL LINE
VOLTAGES. BE SURE TO DISCONNECT
THE LINE CORD BEFORE OPENING THE

UNIT. ALLOW 5 MINUTES FOR

INTERNAL CAPACITANCE TO

DISCHARGE BEFORE REMOVING ANY

COVER.

4.5 Options

Due to the variations of models and options provided in
the SLM series, details of actual circuits used may differ
slightly from above descriptions. Consult Spellman’s
Engineering Department for questions regarding the
principles of operations for the SLM series.

SLM MANUAL 14 118073-001 Rev C

Chapter 5

5.1 Custom Designed Models X (#)

Units built to customer specifications are assigned an X
number be the factory. If this unit is an X model,
specification control sheet is added at the end of this
instruction manual.

SLM MANUAL 15 118073-001 Rev C

Chapter 6

MAINTENANCE

his section describes periodic servicing and
performance testing procedures.

T

WARNING

THIS POWER SUPPLY GENERATES VOLTAGES

THAT ARE DANGEROUS AND MAY BE FATAL.

OBSERVE EXTREME CAUTION WHEN

WORKING WITH HIGH VOLTAGE.

6.1 Periodic Servicing

Approximately once a year (more often in high dust
environments), disconnect the power to the unit. Use
compressed air to blow dust out of the inside of the unit.
Avoid touching or handling the high voltage assembly.

6.2 Performance Test

WARNING

High voltage test procedures are described in Bulletin
STP-783, Standard Test Procedures for High Voltage
Power Supplies. Copies can be obtained from the
Spellman Customer Service Department. Test equipment,
including an oscilloscope, a high impedance voltmeter,
and a high voltage divider such as the Spellman HVD­100 is needed for performance tests. All test components
must be rated for operating voltage.

6.3 High Voltage Dividers

High voltage dividers for precise measurements of output
voltage with an accuracy up to 0.1% are available from
Spellman. The HVD-100 is used for voltages up to
100KV. The Spellman divider is designed for use with
differential voltmeters or high impedance digital
voltmeters. The high input impedance is ideal for
measuring high voltage low current sources, which would
be overloaded by traditional lower impedance dividers.

HIGH VOLTAGE IS DANGEROUS.

ONLY QUALIFIED PERSONNEL SHOULD

PERFORM THESE TESTS.

SLM MANUAL 16 118073-001 Rev C

Chapter 7

FACTORY SERVICE

7.1 Warranty Repairs

During the Warranty period, Spellman will repair all units
free of charge. The Warranty is void if the unit is worked
on by other than Spellman personnel. See the Warranty
in the rear of this manual for more information. Follow
the return procedures described in Section 7.2. The
customer shall pay for shipping to and from Spellman.

THE SLM HVPS IS DESIGNED TO HANDLE AN
ARC RATE OF 1 ARC PER SECOND. EXCEEDING
1 ARC PER SECOND COULD CAUSE DAMAGE
TO THE HVPS. HVPS FAILURE CAUSED BY
EXCESSIVE ARC WILL NOT BE COVERED

UNDER THE WARRANTY

7.2 Factory Service Procedures

Spellman has a well-equipped factory repair department.
If a unit is returned to the factory for calibration or repair,
a detailed description of the specific problem should be
attached.

For all units returned for repair, please obtain an
authorization to ship from the Customer Service
Department, either by phone or mail prior to shipping.
When you call, please state the model and serial numbers,
which are on the plate on the rear of the power supply,
and the purchase order number for the repair. A Return
Material Authorization Code Number (RMA Number) is
needed for all returns. This RMA Number should be
marked clearly on the outside of the shipping container.
Packages received without an RMA Number will be
returned to the customer. The Customer shall pay for
shipping to and from Spellman.

.

A preliminary estimate for repairs will be given by phone
by Customer Service. A purchase order for this amount is
requested upon issuance of the RMA Number. A more
detailed estimate will be made when the power supply is
received at the Spellman Repair Center. In the event that
repair work is extensive, Spellman will call to seek
additional authorization from your company before
completing the repairs.

7.3 Ordering Options and
Modifications

Many of the options listed in Chapter 5 can be retrofitted
into Spellman power supplies by our factory. For prices
and arrangements, contact our Sales Department.

7.4 Shipping Instructions

All power supplies returned to Spellman must be sent
shipping prepaid. Pack the units carefully and securely in
a suitable container, preferably in the original container, if
available. The power supply should be surrounded by at
least four inches of shock absorbing material. Please
return all associated materials, i.e. high voltage output
cables, interconnection cables, etc., so that we can
examine and test the entire system.

All correspondence and phone calls should be directed to:

Spellman High Voltage Electronics Corp.

475 Wireless Boulevard
Hauppauge, New York 11788
TEL: [phone] FAX: [phone]
E-Mail: [e-mail]
http://www.spellmanhv.com

SLM MANUAL 17 118073-001 REV C

SPELLMAN HIGH VOLTAGE ELECTRONICS

WARRANTY

Spellman High Voltage Electronics (“Spellman”) warrants that all power supplies it manufactures will be

free from defects in materials and factory workmanship, and agrees to repair or replace, without charge, any
power supply that under normal use, operating conditions and maintenance reveals during the warranty
period a defect in materials or factory workmanship. The warranty period is twelve (12) months from the
date of shipment of the power supply. With respect to standard SL power supplies (not customized) the
warranty period is thirty-six (36) months from the date of shipment of the power supply.

This warranty does not apply to any power supply that has been:

• Disassembled, altered, tampered, repaired or worked on by persons unauthorized by Spellman;

• subjected to misuse, negligent handling, or accident not caused by the power supply;

• installed, connected, adjusted, or used other than in accordance with the original intended application and/or

instructions furnished by Spellman.

THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
THOSE OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

The buyer’s sole remedy for a claimed breach of this warranty, and Spellman’s sole liability is limited, at

Spellman’s discretion, to a refund of the purchase price or the repair or replacement of the power supply at
Spellman’s cost. The buyer will be responsible for shipping charges to and from Spellman’s plant. The

buyer will not be entitled to make claim for, or recover, any anticipatory profits, or incidental, special or
consequential damages resulting from, or in any way relating to, an alleged breach of this warra nty.

No modification, amendment, supplement, addition, or other variation of this warranty will be binding unless
it is set forth in a written instrument signed by an authorized officer of Spellman.

For an authorization to ship contact Spellman’s Customer Service Department. Please state the model and
serial numbers, which are on the plate on the rear panel of the power supply and the reason for return. A
Return Material Authorization Code Number (RMA number) is needed from Spellman for all returns. The
RMA number should be marked clearly on the outside of the shipping container. Packages received without
an RMA Number may delay return of the product. The buyer shall pay shipping costs to and from Spellman.
Customer Service will provide the Standard Cost for out-of-warranty repairs. A purchase order for this
amount is requested upon issuance of the RMA Number (in-warranty returns must also be accompanied by
a “zero-value” purchase order). A more detailed estimate may be made when the power supply is received
at Spellman. In the event that the cost of the actual repair exceeds the estimate, Spellman will contact the
customer to authorize the repair.

Spellman will warrant for three (3) months or balance of product warranty, whichever is longer, the repaired
assembly/part/unit. If the same problem shall occur within this warranty period Spellman shall undertake all
the work to rectify the problem with no charge and/or cost to the buyer. Should the cause of the problem be
proven to have a source different from the one that has caused the previous problem and/or negligence of
the buyer, Spellman will be entitled to be paid for the repair.

For a complete listing of Spellman’s Global Service facilities please go to:
http://www.spellmanhv.com/customerservice/service.asp

Factory Service Procedures

Factory Service Warranty

Spellman Worldwide Service Centers

101520-007 REV D

SLM Digital Interface

Manual

Ethernet

Serial – RS-232

Universal Serial Bus - USB

Copyright © 2007, Spellman High Voltage Electronics Corporation. All Rights Reserved.

This information contained in this publication is derived in part from proprietary and patent data. This information has

been prepared for the express purpose of assisting operating and maintenance personnel in the efficient use of the

model described herein, and publication of this information does not convey any right to reproduce it or to use it for

any purpose other than in connection with installation, operation, and maintenance of the equipment described.

475 Wireless Boulevard • Hauppauge, New York 11788, USA • www.spellmanhv.com • T:+1 631.630.3000 • F:+1 631.435.1620

118080-001 REV A

Table Of Contents

1.0 Scope .......................................................................................................................3

2.0 Functional Description ...........................................................................................3

3.0 Getting Started - Interface Wiring and Pin-outs ...................................................3

3.1 RS232 Interface .................................................................................................................... 3

3.2 Ethernet Interface.................................................................................................................. 5

3.3 Universal Serial Bus Interface..............................................................................................6

3.4 RS-232 Cabling..................................................................................................................... 6

3.5 Ethernet Cabling ................................................................................................................... 6

3.6 USB Cabling......................................................................................................................... 8

4.0 Getting Started - Software....................................................................................10

4.1 RS-232 ................................................................................................................................ 10

4.2 Ethernet............................................................................................................................... 12

4.3 USB..................................................................................................................................... 29

5.0 Ethernet Commands............................................................................................. 37

5.1 TCP/IP Format.................................................................................................................... 37

5.2 Command Arguments......................................................................................................... 38

5.3 Command Overview........................................................................................................... 38

5.4 Response Overview ............................................................................................................ 40

5.5 Command Structure............................................................................................................ 41

6.0 Serial Commands – RS-232 / USB .......................................................................67

6.1 Serial Interface Protocol ..................................................................................................... 67

6.2 Command Arguments......................................................................................................... 67

6.3 Checksums.......................................................................................................................... 67

6.4 Command Overview........................................................................................................... 69

6.5 Response Overview ............................................................................................................ 70

6.6 Command Structure............................................................................................................ 72

6.7 Spellman Test Commands .................................................................................................. 95

6.8 Serial Command Handling.................................................................................................. 95

118080-001 REV A Page 2 of 95

WARNING

THIS EQUIPMENT GENERATES DANGEROUS VOLTAGES THAT MAY BE FATAL.

PROPER GROUNDING OF ALL HIGH VOLTAGE EQUIPMENT IS ESSENTIAL.SEE SLM

OWNERS MANUAL FOR PROPER GROUNDING TECHNIQUE AND SAFETY

PRECAUTIONS BEFORE APPLING AC INPUT POWER TO THE SLM UNIT.

TO PREVENT DAMAGE TO THE HOST COMPUTER ,THE COMPUTER SHOULD BE

GROUNDED TO THE UNIT.

1.0 SCOPE

This document applies to the communications interfaces on the SLM, assembly

460067.

2.0 FUNCTIONAL DESCRIPTION

The SLM provides 3 different types of digital communications interfaces:

• RS-232 on J3

• Ethernet (10/100-Base-T) on J5

• Universal Serial Bus on J4.

3.0 GETTING STARTED - INTERFACE WIRING AND PIN-OUTS

3.1 RS232 INTERFACE

The RS232C interface has the following attributes:

• 115K bits per second

• No Parity

• 8 Data Bits

• 1 Stop Bit

• No handshaking

• DB-9 connector as shown

118080-001 REV A Page 3 of 95