Hioki SM7860-01 User manual

POWER SOURCE UNIT
Instruction Manual
SM7860-21 to -27
February 2012 Revised edition 1 SM7860A981-01 12-02H
SM7860-01 to -07

Contents
i
1
2
3
4
5
6
7
8
9
10
付
録
索
引
11
12
Contents
Introduction.................................................................................1
Confirming Package Contents....................................................1
Safety Information......................................................................2
Operating Precautions................................................................3
Chapter 1
Overview___________________________________ 7
1.1 Product Overview and Features .........................................7
1.2 Names and Functions of Parts ............................................8
1.3 Screen Layout ...................................................................10
Chapter 2
Preparing to Use the Device and
Supplying Power ___________________________ 11
2.1 Installation & Connection Procedures ...............................11
2.2 Connecting the Power Cord ..............................................12
2.3 Connecting the Device to the Measuring Instrument ........13
2.4 Pre-Operation Inspection ..................................................14
2.5 Turning the Power On and Off ..........................................15
2.6 Setting the Operating Conditions ......................................16
Chapter 3
Communication (GP-IB/RS-232C Interface)______ 17
3.1 Overview and Features .....................................................17
3.2 Specifications ....................................................................18
3.3 Connect a cable to the GP-IB
connector or RS-232C connector 19
3.4 Configuring the Communications Protocol ........................21
3.5 Communication Methods ..................................................22
Status Byte Register .........................................................................24
Event Registers ................................................................................26
Error Registers ..................................................................................28
3.6 Message List .....................................................................29
3.7 Listener Specification Precautions ....................................32
Input buffer size ................................................................................32
Reading from the output buffer .........................................................32

Contents
ii
Chapter 4
External Control ____________________________33
4.1 External Input/Output Connector and Signals ..................33
Connector Type and Signal Pinouts ................................................. 34
Signal Descriptions ..........................................................................35
4.2 Timing Chart .....................................................................36
4.3 Internal Circuitry ................................................................38
Chapter 5
Specifications______________________________39
5.1 General Specifications ......................................................39
5.2 Basic Specifications ..........................................................40
5.3 Input / Output Functions ...................................................44
Chapter 6
Maintenance and Service ____________________45
6.1 Troubleshooting ................................................................45
Inspection and Repair ......................................................................45
6.2 Replacing the Power Fuse ................................................47
6.3 Error Displays ...................................................................48
6.4 Cleaning ............................................................................48

Introduction
1
Thank you for purchasing the HIOKI Model SM7860 series Power Source Unit.
To obtain maximum performance from the device, please read this manual first,
and keep it handy for future reference.
When you receive the device, inspect it carefully to ensure that no damage
occurred during shipping. In particular, check the accessories, panel switches,
and connectors. If damage is evident, or if it fails to operate according to the
specifications, contact your dealer or Hioki representative.
Options □Model 9637 RS-232C Cable (9pin-9pin/Cross/1.8m)
□Model 9638 RS-232C Cable (9pin-25pin/Cross/1.8m)
□Model 9151-02 GP-IB Connector Cable (2 m)
Notes on
Transportation • To ensure safe handling, when transporting the device, please use the original
box and packing materials, but do not use if the box is damaged or warped, or
if the packing materials are in poor condition or incomplete.
• When packing the device, make sure to disconnect the power cords from the
main device.
• When transporting, avoid dropping or other excessive impact.
Introduction
Confirming Package Contents
Confirm that these contents are provided.
□SM7860 series Power Source Unit (1)
□Power Cord (1)
□Instruction Manual (1)
□Voltage output connector
SM7860-01, -02, -21, -22 .............2
SM7860-03, -04, -05, -06, -07,
-23, -24, -25, -26, -27......4

Safety Information
2
This manual contains information and warnings essential for safe operation of
the device and for maintaining it in safe operating condition. Before using it, be
sure to carefully read the following safety precautions.
The following symbols in this manual indicate the relative importance of cautions
and warnings.
Safety Information
This device is designed to comply with IEC 61010 Safety Standards, and
has been thoroughly tested for safety prior to shipment. However, mishan-
dling during use could result in injury or death, as well as damage to the
device. Using the device in a way not described in this manual may negate
the provided safety features.
Be certain that you understand the instructions and precautions in the
manual before use. We disclaim any responsibility for accidents or injuries
not resulting directly from device defects.
Safety Symbols
In the manual, the symbol indicates particularly important information that
the user should read before using the device.
The symbol printed on the device indicates that the user should refer to a
corresponding topic in the manual (marked with the symbol) before using
the relevant function.
Indicates a grounding terminal.
Indicates DC (Direct Current).
Indicates AC (Alternating Current).
Indicates the ON side of the power switch.
Indicates the OFF side of the power switch.
Indicates that incorrect operation presents an extreme hazard that
could result in serious injury or death to the user.
Indicates that incorrect operation presents a significant hazard that
could result in serious injury or death to the user.
Indicates that incorrect operation presents a possibility of injury to the
user or damage to the device.
Indicates advisory items related to performance or correct operation
of the device.
Other symbols
Indicates a prohibited action.
*Indicates that descriptive information is provided below.
PAGE UP
(Bold) Bold characters within the text indicate operating key labels.
( p. ) Indicates the location of reference information.

Operating Precautions
3
Follow these precautions to ensure safe operation and to obtain the full benefits
of the various functions.
Before using the device for the first time, verify that it operates normally to
ensure that no damage occurred during storage or shipping. If you find any dam-
age, contact your dealer or Hioki representative.
Operating temperature and humidity
: 0 to 40°C at 80%RH or less (non-condensing)
Temperature and humidity range for guaranteed accuracy
: 23±5°C, 80%RH or less (non-condensing)
Operating Precautions
Preliminary Checks
Device Installation
Avoid the following locations that could cause an accident or damage
to the device.
Exposed to direct sun-
light
Exposed to high tem-
perature
In the presence of cor-
rosive or explosive gas-
es
Exposed to water, oil,
other chemicals, or
solvents
Exposed to high hu-
midity or condensa-
tion
Exposed to strong elec-
tromagnetic fields
Near electromagnetic
radiators
Exposed to high lev-
els of particulate dust
Near electromagnetic
radiators (e.g., high-fre-
quency induction heat-
ing systems and IH
cooking utensils)
Subject to vibration
• Do not slant the device or place it on top of an uneven surface. Dropping or
knocking down the device can cause injury or damage to the device.
• Ventilation holes for heat radiation are provided on the side and rear panels of
the device. Leave sufficient space around the ventilation holes and install the
device with the holes unobstructed. Installation of the device with the ventila-
tion holes obstructed may cause a malfunction or fire.

Operating Precautions
4
Installing To prevent overheating, be sure to leave the specified clearances around the
unit.
• Vents must not be obstructed.
• When rack-mounting the device, fans must be installed above or on top of the
rack to ensure proper ventilation. Be sure that the rack is adequately venti-
lated so that the internal temperature remains at or below 40°C. Continued
use of the device in a high-temperature environment will shorten its service
life. Keep the temperature as low as possible.
100 mm or more
50 mm or more 50 mm or more
Handling the Device
•Do not allow the device to get wet, and do not take measurements with
wet hands. This may cause an electric shock.
•Touching any of the high-voltage points inside the device is very danger-
ous. Do not attempt to modify, disassemble or repair the device; as fire,
electric shock and injury could result.
• To avoid damage to the device, protect it from physical shock when transport-
ing and handling. Be especially careful to avoid physical shock from dropping.
Failure to observe the following precaution may result in bodily injury.
• The device weighs approximately 45 kg (SM7860-07, -27: approximately 32
kg). It should be moved by at least two people, who should grip it using the
handles on the left and right sides.
• The device is heavy. When transporting it, follow your company's workplace
safety standards to assure safety (for example, by wearing non-slip gloves and
protective footwear).

Operating Precautions
5
To ensure measurements are accurate,
• Warm up the device an hour or more before use.
• The device should be calibrated once a year.
Handling the Cords
Before using the device, make sure that the insulation on the Connection
Cable is undamaged and that no bare conductors are improperly exposed.
Using the device in such conditions could cause an electric shock, so con-
tact your dealer or Hioki representative for replacements.
• Avoid stepping on or pinching cables, which could damage the cable insula-
tion.
• To avoid breaking the cables, do not bend or pull them.
• To avoid damaging the power cord, grasp the plug, not the cord, when unplug-
ging it from the power outlet.
• Keep the cables well away from heat sources, as bare conductors could be
exposed if the insulation melts.
Use only the specified connection cables. Using a non-specified cable may
result in incorrect measurements due to poor connection or other reasons.
Before Connecting
•Before turning the device on, make sure the supply voltage matches that
indicated on its power connector. Connection to an improper supply volt-
age may damage the device and present an electrical hazard.
•To avoid electrical accidents and to maintain the safety specifications of
this device, connect the power cord only to a 3-contact (two-conductor +
ground) outlet.

Operating Precautions
6

1.1 Product Overview and Features
7
The SM7860-01 to -07 and SM7860-21 to -27 are power supply units designed
for use with the Model SM7810 or SM7810-20 Super MΩHiTester. They support
bipolar, multi-channel output and are compatible with multi-channel systems.
Used in combination with the Model SM7810 or SM7810-20 Super MΩHiTester,
they are ideal for use in automated testing and measurement of capacitors.
The device delivers an 8-channel, positive/negative power supply, allowing an
optimized testing line to be built using the smallest possible number of power
supplies.
Since each channel has its own output on/off switch, it is possible to control volt-
age application without an external circuit (allowing charging and discharging).
Use of semiconductor switches eliminates the need for maintenance. Addition-
ally, the ability to limit current (to 50 mA) for individual channels means the mea-
surement of other channels won't be affected when a target workpiece has a
short.
High-capacity capacitors can be charged rapidly, and the number of charges can
be reduced.
Devices are available with output voltages of up to ±1,000 V.
Devices ship standard with external I/O, GP-IB, and RS-232C interfaces for
sequencing. Interfaces are used to configure and power the devices.
Overview Chapter 1
1.1 Product Overview and Features
Bipolar, multi-channel output
Independent on/off output switching and current limitations
for all channels
Output current capacity: 50 mA/channel
Output voltage: 1,000 V/channel
Standard interfaces
Inter-lock Function

1.2 Names and Functions of Parts
8
1.2 Names and Functions of Parts
LCD screen
The screen uses a 2-page
layout to display setting val-
ues and setting status infor-
mation.
"1.3 Screen Layout" (p.10)
Front Panel Scroll keys (PAGE UP▲/ PAGE DOWN▼)
Used to scroll through the display pages.
"1.3 Screen Layout" (p.10)
The scroll keysare also used to set the GP-IB address.
(p.21)
Inter-lock indicator
Lights up when the interlock is
on.
Voltage output indicator
Lights up when a voltage is be-
ing output.
Power indicator
Lights up when the device is on.
Rear Panel
Power inlet
Connect the supplied power cord
here. (p.12)
Fuse holder
Allows the fuse to be replaced.
(p.47)
RS-232C connector
Connect to a computer when
using the RS-232C interface.
(p.19)
EXT I/O connector
The external I/O connector
can be used to control the
device.
(p.33)
Voltage output terminal
Connecttheincludedvoltage
output connector.
(p.13)
Vent
Keep clear of ob-
structions.
POWER switch
Turns the device on and off.
: Power On
: Power Off
(p.15)
GP-IB connector
Connect to a computer when using the
GP-IB interface.
(p.19)
GND terminal
Serves as the ground terminal.
The GND terminal is connected
to the device’s enclosure.

1.2 Names and Functions of Parts
9
Side Panel
Handle
Itshouldbemovedbyatleasttwopeople,whoshouldgripit using
the handles on the left and right sides.
Vent
Keep clear of obstructions.

1.3 Screen Layout
10
The LCD screen consists of two display pages. When the SM7860 is turned on,
page 1 is shown.
The scroll keys on the front of the device (PAGE UP▲/PAGE DOWN▼) are
used to scroll among the display pages, which can also be selected directly by
sending the “PAG” command from the GP-IB or RS-232C interface.
See: Message List "PAG" (p.30)
1.3 Screen Layout
VA (+) IR:1000.0
VB (+) IR: 250.0
TERMINAL:
OUT1:11100000
OUT2:11100000
OUT3:11100000
OUT4:11100000 VMA:1000.0 OK
VMB: 250.0 OK
■Screen P1: Displays output voltage settings.
■Screen P2: Alarm/GP-IB address setting display
Output voltage setting
VA: Displays the power supply A circuit voltage setting.
VB: Displays the power supply B circuit voltage setting.
Temperature error display
When a temperature error is detected,
"TEMP" flashes in reverse video.
Terminal output setting state
The setting is 0 or 1.
From left to right, OUTn row 1 →row 8
0: High-impedance
1: ON
Monitor voltage value
VMA: Displays the voltage
monitor value for the
power supply A circuit.
VMB: Displays the voltage
monitor value for the
power supply B circuit.
*Fixed-point, zero-suppressed.
Voltage error alarm results
VA ALARM: 19
VB ALARM: 19
GPIB ADDR: 1
Voltage error alarm setting
VA: Power supply A circuit voltage error alarm setting ±(%)
VB: Power supply B circuit voltage error alarm setting ±(%)
OK: The monitor voltage error
relative to the output volt-
age setting falls within the
normal range relative to
the voltage error alarm
setting.
NG: The monitor voltage error
relative to the output volt-
age setting indicates an
errorrelativetothevoltage
error alarm setting.
Temperature error display
When a temperature error is
detected, "TEMP" flashes in re-
verse video.
GP-IB address
L
Key lock display
When the keys are
locked, flashes
in reverse video.
L
TEMP
TEMP
L
TEMP
TEMP

2.1 Installation & Connection Procedures
11
Be sure to read the "Operating Precautions" (p.3) before installing and connecting
this device.
Preparing to Use the Device
and Supplying
Power Chapter 2
2.1 Installation & Connection Procedures
8
Install this device (p.3)
1
Rear PanelFront Panel
Turn the power on (p.15)
6
Connect the external interface
4• Using the GP-IB or RS-232C interface
(p.17)
• Using the EXT I/O (p.33)
Connect the power cord (p.12)
2
Make device settings (p.16)
(via the external interface)
7
Connect the device to the mea-
suring instrument. (p.13)
3
Be sure to complete the pre-oper-
ation inspection (p.14) before
using the device
5
Activate the power source
2
46
3

2.2 Connecting the Power Cord
12
Turn off the power before disconnecting the power cord.
Connection Methods
2.2 Connecting the Power Cord
•Before turning the device on, make sure the supply voltage matches that
indicated on its power connector. Connection to an improper supply volt-
age may damage the device and present an electrical hazard.
•To avoid electrical accidents and to maintain the safety specifications of
this device, connect the power cord only to a 3-contact (two-conductor +
ground) outlet.
•Before using the device, make sure that the insulation on the power cord
is undamaged and that no bare conductors are improperly exposed.
Using the device in such conditions could cause an electric shock, so
contact your dealer or Hioki representative for replacements.
To avoid damaging the power cord, grasp the plug, not the cord, when unplug-
ging it from the power outlet.
Rear Panel
1Confirm that the device is turned off.
2Confirm that the mains supply voltage
matches the device, and connect the
power cord to the power inlet on the
device.
3Plug the power cord into the mains outlet.
Power inlet

2.3 Connecting the Device to the Measuring Instrument
13
Connection Methods
Specifications
2.3 Connecting the Device to the Measuring
Instrument
To avoid electric shock or damage to the equipment, always observe the
following precautions when connecting to voltage output terminal.
•Always turn off the power to the device and to any devices to be con-
nected before connecting the voltage output connectors.
To avoid damaging the device, be sure to observe the following precautions:
• Do not connect the device to a load with a charge in excess of the output volt-
age range.
• Do not connect the device to a load with a charge that has the opposite polarity
of the output voltage range.
• Do not connect the device to a load that has a charge when the device's power
supply is turned off.
Rear Panel
1Confirm that the device is turned off.
2Connect the included voltage output con-
nector to the voltage output terminal on
the rear of the device.
Voltage output terminal
6 5 47
32
10 8
9
1
Voltage output pin assignments
(View of terminal on device)
*1 On the SM7860-05, -06, -25, and -26, serves as the discharging
terminal.
*2 On the SM7860-05, -06, -07, -25, -26 and -27, serves as the dis-
charging terminal.
Pin No. OUT1
Circuit A OUT2*1
Circuit A OUT3 Circuit B OUT4*2 Circuit B
1CH1 CH1 CH1 CH1
2 CH2 CH2 CH2 CH2
3CH3 CH3 CH3 CH3
4 CH4 CH4 CH4 CH4
5CH5 CH5 CH5 CH5
6 CH6 CH6 CH6 CH6
7CH7 CH7 CH7 CH7
8 CH8 CH8 CH8 CH8
9NC NC NC NC
10 COM COM COM COM

2.4 Pre-Operation Inspection
14
2.4 Pre-Operation Inspection
Do not use a damaged cordbecause
doing so may result in electric
shock. (Replace the cord with a new
one.)
Metal Exposed
•Is the power cord insulation torn, or is
any metal exposed?
•Is the connection cord insulation torn, or
is any metal exposed?
1
No Metal Exposed
Before using the device the first time, verify that it operates normally to ensure that the no
damage occurred during storage or shipping. If you find any damage, contact your dealer or
Hioki representative.
Peripheral Device Inspection
If damage is evident, request re-
pairs.
Yes
Is damage to the device evident?
Device Inspection
2
No
Inspection complete
Please read the "Operating Precautions" (p.3) before use.
Use of a supply voltage outside the
specified range may damage the de-
vice or cause electric shock.
No
Does the supply voltage of your power
source match the supply voltage indicated
above the power source inlet on the rear of
the device?
Yes

2.5 Turning the Power On and Off
15
Turning Power On
Turning Power Off
2.5 Turning the Power On and Off
•Before turning the device on, make sure the supply voltage matches that
indicated on its power connector. Connection to an improper supply volt-
age may damage the device and present an electrical hazard.
•When turning the device on and off, do not touch the voltage output ter-
minals. Doing so may cause electric shock.
When turning the device on and off, do not connect a load to the voltage output
terminals. Turning the device on or off with a load connected may damage the
load.
Rear Panel
POWER switch
Turn the POWER switch on ( ).
The power indicator and LCD screen on the front of the device will light up.
Before Starting Measurement
To obtain precise measurements, provide about an hour warm-up after turning power on.
Turn the POWER switch off ( ).

2.6 Setting the Operating Conditions
16
This section describes how to set the operating conditions according to the man-
ner in which the device is to be used.
Settings are configured via either of the device’s external interfaces:
See: GP-IB/RS-232C Interface (p.17)
The device cannot be configured directly in a standalone manner.
2.6 Setting the Operating Conditions
Setting function Description of operation and settings See page
Output voltage Sets the output voltage.
Setup ranges: 1.0 to 1000.0 V (0.1 V resolution) p.29
Voltage error alarm Generates an alarm when the monitor voltage error relative to the output voltage setting falls outside the set value range.
Setup ranges: ±2 to ±19% (1% resolution) p.29
LCD display mode Turns the LCD display on and off.
[OFF/ ON] p.30