Hitachi Sj7002 Owners Manual

							Using the Front Panel Keypad
Inverter Mountingand Installation
2–30
 Function Key  – This key is used to navigate 
through the lists of parameters and functions 
for setting and monitoring parameter values.
 Up/Down (  ,  ) Keys – Use these 
keys alternately to move up or down the lists 
of parameter and func tions shown in the 
display, and increment/decrement values.
 Store (   ) Key – When the unit is in 
Program Mode and the operator has edited a 
parameter value, press the Store key to write 
the new value to the EEPROM. This param-
eter is then displayed at powerup by default. 
If you want to change the powerup default, 
navigate to a new parameter value and press 
the Store key.
Keys, Modes, and 
ParametersPurpose of the keypad is to provide a way  to change modes and parameters. The term  function 
applies to both monitoring modes and para meters. These are all accessible through function 
codes  that are primarily 3 or 4-character codes. Th e various functions are separated into related 
groups identifiable by the left-mos t character, as the table shows.
For example, function “A004” is the  base frequency setting for the motor, typically 50 Hz or 
60 Hz. To edit the parameter, the inverter must  be in Program Mode (PGM LED will be ON). 
You use the front panel keys to first select th e function code “A004.” After displaying the value 
for “A004,” use the Up/Down (   or  ) keys to edit the value.
NOTE:  The inverter 7-segment display shows lower ca se “b” and “d”, meaning the same as the 
upper case letters “B” and “D” used in this manual (for uniformity “A to F”).
 The inverter automatically switches into Monitor 
Mode when you access “D” Group functions. It 
switches into Program Mode when you access 
any other group, because they all have editable 
parameters. Error codes use the “E” Group, and 
appear automatically when a fault event occurs. 
Refer to  “
Monitoring Trip Events, History, & 
Conditions” on page 6–5 for error code details.
1 2
RUN STOPRESET
FUNC.STR
RUN
PRG POWER
ALARM
HZ
A V kW
%
MIN MAX
HITACHI
60.0
Function key Up/Down
keys Store
key
12
STR
Function  GroupType (Category) of FunctionMode to AccessPGM LED Indicator
“D” Monitoring functions Monitor
 or 
“F” Main profile parameters Program
“A” Standard functions Program
“B” Fine tuning functions Program
“C” Intelligent  terminal functions Program
“H” Motor constant functions Program
“P” Expansion card functions Program
“U” User-selectable menu functions Monitor
“E” Error codes ——
12
“D” Group “A” Group
“B” Group
“C” Group
“H” Group
“P” Group
“U” Group
“F” Group
MONITOR
PROGRAM

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							SJ7002 Inverter
Inverter Mountingand Installation
2–31
Keypad
Navigational MapThe SJ7002 Series inverter drives have many  programmable functions and parameters. 
Chapter 3 will cover these in detail, but you ne ed to access just a few items to perform the 
powerup test. The menu structure makes use of function codes and para meter codes to allow 
programming and monitoring with only a 4-digit  display and a few keys and LEDs. So, it is 
important to become familiar wi th the basic navigational map of parameters and functions in 
the diagram below. You can late r use this map as a reference.
12
21
Write
data to 
EEPROM,  store as 
powerup  default
Increment/
decrement  value
21
21
21
21
21
21
2
1
1
Select Parameter
Select Function
Display Data
2
Return to 
parameter  list
21
21
21
21
21
21
Edit Parameter
21
21
21
21
21
21
21D002–D104
Edit
D001 Edit
PRG LED
PRG LED
Increment/
decrement 
value
1 2
Write data 
to F001, 
store D001  as power-
up default
Store as 
powerup  default
Monitor Mode Program Mode
FUNC.
FUNC.FUNC.
FUNC.
FUNC.
FUNC.
FUNC.
FUNC.
FUNC.
FUNC.STR
STR
STR
0.0 0
0.0 0
F00 1
F004
A---
b---
C---
H---
P---
U---
d00 1
d 104U0 12
U00 1d00 1
P 13 1
P 13 1
P00 1
H073
H001
C 168
C00 1
b 134
b00 1
A 153
A00 1
123.4

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							Using the Front Panel Keypad
Inverter Mountingand Installation
2–32
Selecting 
Functions and 
Editing Parame-
tersIn order to run the motor for the powerup test, this section will show how to:
 select the inverter’s maximum output frequency to the motor
 select the keypad potentiometer as  the source of motor speed command
 select the keypad as the source of the RUN command
 set the number of poles for the motor
 enable the RUN command
The following series of programming tables are designed for successive use. Each table uses 
the previous table’s final state as the starting po int. Therefore, start with the first and continue 
programming until the last one. If you get lost or concerned  that some of the other parameters 
settings may be incorrect, refer to  “
Restoring Factory Default Settings” on page 6–16.
CAUTION: If you operate a motor at a frequency higher  than the inverter standard default 
setting (50Hz/60Hz), be sure to check the motor  and machine specifications with the respective 
manufacturer. Only operate the motor at elevated frequencies after getting their approval. 
Otherwise, there is the danger of equipment damage.
Setting the Motor Base Frequency  -The motor is designed to operate at a specific AC 
frequency. Most commercial mo tors are designed for 50/60 Hz operation. First, check the 
motor specifications. Then follow  the steps in the table below to verify the setting or  correct for 
your motor. DO NOT set it for greater than 50/60 Hz unless the motor manufacturer 
specifically approves operati on at the higher frequency. 
TIP: If you need to scroll through a function or  parameter list, press and hold the   or   
key to auto-increment through the list.
ActionDisplayFunc./Parameter
Press the 
 key. Monitor functions
Press the   or   keys until -> “A” Group selected
Press the   key. First “A” parameter
Press the   key twice. Base frequency setting
 Press the   key.
orDefault value for base frequency 
US = 60 Hz, Europe = 50 Hz
Press the   or   key as needed. Set to your motor specs (your 
display may be different)
Press the    key. Stores parameter, returns to “A” 
Group list
FUNC.d00 1
12A---
FUNC.A00 1
1A003
FUNC.60
50
1260
STRA003
12

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							SJ7002 Inverter
Inverter Mountingand Installation
2–33
Select the Potentiometer for Speed Command  - The motor speed may be controlled from the 
following sources:
 Potentiometer on front pa nel keypad (if present)
 Control terminals
 Remote panel
Then follow the steps in the table below to select the potentiometer for the speed command (the 
table resumes action from the end of the previous table).
Select the Keypad for the RUN Command  - The RUN command causes the inverter to accel-
erate the motor to the selected speed. You can pr ogram the inverter to respond to either the 
control terminal signal or the keypad RUN key. Follow the steps in the table below to select the 
front panel RUN key as the source for the  RUN Command (the table resumes action from the 
end of the previous table).
NOTE: When you press the STR key in the last step  above (and the display = 02), the Run 
Enable LED above the RUN switch on the keypad will turn ON. This is normal, and does not 
mean the motor is trying to run. It means that the RUN key is now enabled.
DO NOT press the RUN key at this time—f inish out the programming exercise first.
ActionDisplayFunc./Parameter
Press the   key twice. Speed command source setting
Press the   key. 0 = potentiometer
1 = control terminals (default)
2 = keypad
Press the   key. 0 = potentiometer (selected)
Press the    key. Stores parameter, returns to “A” 
Group list
ActionDisplayFunc./Parameter
Press the   key. Run command source
Press the   key. 1 = control terminals (default)
2 = keypad
Press the   key. 2 = keypad (selected)
Press the    key. Stores parameter, returns to “A” 
Group list
2A00 1
FUNC.0 1
200
STRA00 1
1A002
FUNC.0 1
102
STRA002

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							Using the Front Panel Keypad
Inverter Mountingand Installation
2–34
Configure the Inverter for the Number of Motor Poles - The number of magnetic poles of a 
motor is determined by the motor’s internal wi nding arrangement. The specifications label on 
the motor usually indica tes its number of poles. For prope r operation, verify the parameter 
setting matches the motor poles.  Many industrial motors have four poles, corresponding to the 
default setting in the inverter.
Follow the steps in the table below to verify th e motor poles setting and change it if necessary 
(the table resumes action from th e end of the previous table.)
This step concludes the paramete r setups for the inverter. You are almost ready to run the motor 
for the first time!
TIP:  If you became lost during any of these steps,  first observe the state of the PRG LED. Then 
study the  “
Keypad Navigational Map” on page 2–31 to determine the current state of the 
keypad controls and display. As long as you do  not press the STR key, no parameters will be 
changed by keypad entry errors. Note that power cycling the inverter will not cause it to reset to 
a particular programming state.
The next section will show you how to monitor  a particular parameter from the display. Then 
you will be ready to run the motor.
ActionDisplayFunc./Parameter
Press the   key. “A” Group selected
Press the   key three times. “H” Group selected
Press the   key. First “H” parameter
Press the   key five times. Motor poles parameter
Press the   key. 2 = 2 poles
4 = 4 poles (default)
6 = 6 poles
8 = 8 poles
Press the   or   key as needed. Set to match your motor (your 
display may be different)
Press the    key. Stores parameter, returns to “H” 
Group list
FUNC.A---
1H---
FUNC.H00 1
1H004
FUNC.4
124
STRH004

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							SJ7002 Inverter
Inverter Mountingand Installation
2–35
Monitoring 
Parameters with 
the DisplayAfter using the ke ypad for parameter 
editing, it’s a good idea to switch the 
inverter from Program Mode to Monitor 
Mode. This will turn out the PRG LED, and 
the Hertz, Volt, Ampere, or % LED 
indicates the display units.
For the powerup test, monitor the motor speed  indirectly by viewing the inverter’s output 
frequency. The  output frequency  must not be confused with  base frequency (50/60 Hz) of the 
motor, or the  carrier frequency  (switching frequency of the in verter, in the kHz range). The 
monitoring functions are in the  “D” list, located near the top left of the diagram in the  “
Keypad 
Navigational Map” on page 2–31.
Output frequency (speed) monitor  - Resuming the keypad programming from the previous 
table, follow the steps in the table below.
When the 
d001 function code appeared, the PRG LED went OFF. This confirms the inverter is 
no longer in programming mode,  even while you are selecting the particular monitoring param-
eter. After pressing the FUNC. key, the display sh ows the current speed (is zero at this point).
Running the 
MotorIf you have programmed all the parameters up to this point, you’re ready to run the motor! 
First, review this checklist:
1. Verify the Power LED is ON. If not, check the power connections.
2. Verify the Run Key Enable LED is ON. If not, review the programming steps to find the 
problem.
3. Verify the PRG LED is OFF. If it is ON, review the instructions above.
4. Make sure the motor is disconne cted from any mechanical load.
5. Turn the potentiometer to the MIN po sition (completely counterclockwise).
6. Now, press the RUN key on the keypad. The RUN LED will turn ON.
7. Slowly increase the potentiometer setting in  clockwise fashion. The motor should start 
turning when the indicator is in the 9:00 position and beyond.
8. Press the STOP key to stop the motor rotation.
ActionDisplayFunc./Parameter
Press the   key. “H” Group selected
Press the   key. Output frequency selected
Press the   key. Output frequency displayed
1
2
RUN STOPRESET
FUNC.STR
RU N
PRG POWER
ALARM
HZ
A V kW
%
MIN MAX
HITACHI
50.0
FUNC.H---
1d00 1
FUNC.0.0 0

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							Using the Front Panel Keypad
Inverter Mountingand Installation
2–36
St ep  1 0: Reading this section will help you make so me useful observations when first running 
the motor.
Error Codes  - If the inverter displays an error code (LED format is “
E--”), see “Monitoring 
Trip Events, History, & Conditions” on page 6–5 to interpret and clear the error.
Acceleration and Deceleration  - The SJ700
2 inverter has programmable acceleration and 
deceleration values. The  test procedure left these at the  default value, 10 seconds. You can 
observe this by setting the pote ntiometer at about half speed be fore running the motor. Then 
press RUN, and the motor will take 5 seconds to  reach a steady speed. Press the STOP key to 
see a 5 second deceleration to a stop.
State of Inverter at Stop  - If you adjust the motor’s speed to zero, the motor will slow to a near 
stop, and the inverter turns the outp uts OFF. The high-performance SJ700
2 can rotate at a very 
slow speed with high torque output, but not zero (must use servo sy stems with position 
feedback for that feature). This characteristic  means you must use a mechanical brake for some 
applications.
Interpreting the Display  - First, refer to the output fre quency display readout. The maximum 
frequency setting (parameter A004 ) defaults to 50 Hz or 60 Hz (Europe and United States, 
respectively) for your application.
Example: Suppose a 4-pole motor is rated for 60 Hz  operation, so the inverter is configured to 
output 60 Hz at full scale. Use the following formula to calculate the RPM.
The theoretical speed for the motor is 1800 RP M (synchronous speed). However, an induction 
motor cannot generate torque unless its shaft turns  at a slightly different speed. This difference 
is called  slip. So it’s common to see a  rated speed of approximately 1750 RPM on a 60 Hz, 
4-pole motor. Using a tachometer to measure sh aft speed, you can see the difference between 
the inverter output frequency and the actual motor speed. The slip incr eases slightly as the 
motor’s load increases. This is why the inverter  output value is called “frequency,” since it is 
not exactly equal to motor spee d. You can program the inverter to display output frequency in 
units more directly related to the load speed  by entering a constant (discussed more in depth on
page  3–45
).
Run/Stop Versus Monitor/Program Modes  – 
The Run LED on the inverter is ON in Run Mode, 
and OFF in Stop Mode. The Program LED is ON 
when the inverter is in Program Mode, and OFF for 
Monitor Mode. All four mode combinations are 
possible. The diagram to the right depicts the 
modes and the mode tr ansitions via keypad.
NOTE: Some factory automation devices such as  PLCs have alternate Run/Program modes; 
the device is in either one mode or the other.  In the Hitachi inverter, however, Run Mode alter-
nates with Stop Mode, and Program Mode alternates with Mo nitor Mode. This arrangement 
lets you program some values while the invert er is operating—providing flexibility for 
maintenance personnel.
11
Powerup Test 
Observations and 
Summary
 RPM Frequency
60
×
Pairs of poles
----------------------------------------
Frequency
120
×
# of poles
-------------------------------------------
60 120
×
4
--------------------
-1800 RPM
== ==
Run Stop
Monitor ProgramRUN
STOP
RESET
FUNC.

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							SJ7002 Inverter
Inverter Mountingand Installation
2–37
Emergency Stop Function
IntroductionThe SJ700 series inverter has the function of  “uncontrolled stopping by removal of motor 
power” in accordance with Stop Category  0 defined by EN60204-1. The inverter is also 
designed to comply with Safety  Category 3 of EN954-1. This func tion is generally called Safe 
Stop function. The emergency stop  function shuts off the inverter output (i.e. stops the switch-
ing operation of the main circuit elements) in  response to a command from a hardware circuit 
via an intelligent input terminal without the operation by internal CPU software.
Carefully note the following points when installing or using the Emergency Stop Function:
 The emergency stop function does not electrical ly shut off the inverter but merely stops the 
switching operation of the main circuit elemen ts. Therefore, do not touch any terminals of 
the inverter or any power lines, e.g., motor ca bles. Otherwise, electric shock, injury, or 
ground fault may result.
 All systems that include an inverter must  comply with the requirements of EN60204-1 
(safety of machinery) and othe r applicable standards. You must confirm the contents of 
standards applicable to your system.
 Before installing a system us ing Safe Stop function, you must  fully examine whether Safe 
Stop function and the safe ty category to be applied are ade quate for your system. For details, 
refer to the standards required for your system.
 Every system must be configured with an inverter, a motor, and an external shutoff device.  The external shutoff device must at least  comply with Safety Category 3 of EN954-1.
 Safe Stop function is not intended for electrical insulation between the inverter and motor. If  necessary, connect a s hut off device (e.g., contactor)  to the motor connection cable.
 Safe Stop function is not designed to prevent malfunctions in drive process control and  application functions.
 Carefully note that digital outp uts (i.e., relay and open collector outputs) are not regarded as 
the safety-related signals described here. The  signals output from externally installed safety 
relays must be used for th e safety-related control circui ts installed for your system.
Inverter 
ConfigurationTo enable the emergency stop f unction, set the slide lever of slide switch SW1 to ON. The 
factory default SW1 setting is  OFF (Emergency Stop disabled).
NOTE: Before operating slide switch  SW1, make sure that the input power supply is off.
NOTE:  Carefully note that improperly turning slide switch SW1 ON or OFF will automati-
cally change function assignments to th e control terminals of the inverter.
Slide switch SW1
Slide lever (f actory setting: OFF)
OFF ON
ON

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							Emergency Stop Function
Inverter Mountingand Installation
2–38
When the emergency stop function  is enabled, intelligent input terminals [1] and [3] are used 
exclusively for this function, and  no other functions can be assigned to these terminals. Even if 
other functions have been assigned to these te rminals, these are automatically disabled and 
these terminals are used exclusiv ely for the emergency stop function.
Terminal [1] function –  This terminal always serves as  the “a” (N.O.) contact for the reset 
[RS] signal. This signal resets the inverter and releases the inverter from the trip due to 
emergency stop (error code E37).
Terminal [3] function –  This terminal always serves as the “b” (N.C.) contact for the 
emergency stop [EMR] signal. This  signal shuts off the inverter output without the operation by 
internal CPU software. This signal makes the inverter trip due to emergency stop (error 
code E37).
NOTE:  If intelligent input  terminal [3] is left un connected, the cable conn ected to the terminal 
is disconnected, or the si gnal logic is improper, the inverter trips due to emergency stop (E37). 
If this occurs, check and correct the wiring and signal logic, and then input the reset [RS] 
signal. Only the reset [RS] signal input from  intelligent input terminal [1] can release the 
inverter from tripping due to emergency stop (E 37). The inverter cannot be released from the 
E37 trip status by any operation from the digital operator.
Note 1: When function [RS] (code 18) is assigned  to the input terminal, “a/b (N.O./N.C.)” 
selection is always 00 (N.O.).
Note 2: When terminal setting C003 is [EMR] (cod e 64), terminal setting C013 is always 
01 (N.C.).
Note 3: If function [RS] (code18) has be en assigned to an intelligent input terminal other than 
intelligent input terminals [1] and [3] before slide switch SW1 is set to ON, the input 
terminal setting for that terminal is  automatically changed to NO (no function 
assigned) when slide switch SW1 is set to ON. This prevents any duplication of 
terminal functions. Even if slide switch SW1  is subsequently turned OFF, the original 
function setting for the term inal will not be restored. If necessary, the original 
function will have to be reassigned to the terminal.
Example –  If slide switch SW1 is set to ON when function [RS] (code18) has been 
assigned to input terminal 2 (by terminal setting C002), terminal setting C002 is 
changed to NO (no function assigned), and f unction [RS] (code 18) is assigned to 
input terminal 1 (by terminal  setting C001). Even if slide switch SW1 is subsequently 
SW1 Switch 
Setting
Intelligent input terminal [1]Intelligent input terminal [3]
Function selection (normally C001)a/b (N.O./N.C.) 
selection (u se C011) *1Function selection 
(normally C003)a/b (N.O./N.C.) 
selection (u se C013) 
*1, *2
OFF 
– Emergency 
Stop disabled 
(factory setting) User selectable  *4 User selectable  *4
User selectable  *4 User selectable  *4
Factory  setting [RS],
 code 18 Factory 
setting N.O., 
code 00 Factory 
setting [JG],
 code 06 Factory 
setting N.O., 
code 00
ON – Emergency 
Stop enabled Automatic assignment of functions 
to intelligent input terminals [1] and [3] and  the terminal assigned 
[RS] (code 18)  *3
Fixed 
(cannot be  changed) [RS],
 code 18 Fixed 
(cannot be  changed) N.O., 
code 00 Fixed 
(cannot be  changed) [EMR],
 code 64 Fixed 
(cannot be  changed) N.C., 
code 01
ON (after set to  OFF once) – 
Emergency Stop 
disabled  *3, *5 User selectable  *4 User selectable  *4
User selectable  *4 User selectable  *4
Setting 
retained 
when SW1  is set ON [RS],
 code 18 Setting 
retained 
when SW1  is set ON N.O., 
code 00 Released 
from 
emergency  stop 
function (No 
function 
assigned) Setting 
retained 
when SW1  is set ON N.C., 
code 01

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							SJ7002 Inverter
Inverter Mountingand Installation
2–39
turned OFF, terminal [2] function C002 and terminal [1] function  C001 will remain 
as NO (no function assigned) and [RS] (code 18), respectively.
Note 4: Function [EMR] (code 64) canno t be assigned to input terminal 3 by an operation 
from the digital operator. The function is au tomatically assigned to the terminal when 
slide switch SW1 is set to ON.
Note 5: After slide switch SW1 has been set to ON  once, function assignments to intelligent 
input terminals [1] and [3] are  not returned to their original  assignments. If necessary, 
reassign original functions to the intelligent input terminals.
Copying Inverter 
DataNote that data from an inverter  configured for the emergency st op function can affect copy 
operations when using an optional operator (SRW or SRW-EX).
If operator data is  copied to a SJ700 series inverter th at has slide switch SW1 in the ON 
position from another SJ700 series  inverter whose slide switch SW1 is OFF or an SJ300 series 
inverter, the digital operator on your SJ700 series inverter may display [R-ERROR COPY 
ROM] for a moment. This event may occur becaus e the data on intelligent input terminals [1] 
and [3] cannot be copied since, on your inve rter, exclusive functions have already been 
assigned to intelligent input te rminals [1] and [3] due to the slide switch SW1 setting to ON. 
Note that other data is copied. If this event occurs, check the settings on both copy-source and 
copy-destination inverters.
NOTE: To use the copied data in inverter operation, power OFF and ON again after the copy 
operation is complete.
Safety CategoriesThe following Safety Categories are defined by EN954-1 (JIS B 9705).
CategorySafety requirementSystem behavior
Principle for  achieving safety
B
Components, safety-related parts of control 
system, and protective equipment must be 
designed, manufactured,  selected, assembled, 
and combined in accordance with related 
standards to ensure resist ance to the anticipated 
adverse effects of faults. A defect (fault) may cause a loss 
of the safety function.
Characterized mainly by the  selection of 
components
1 The requirements of Category B must be 
applied. Proven components and safety 
principles must  be applied. A defect (fault) may cause a loss 
of the safety function. However, 
the probability of loss is less than 
that specified for Category B.
2The requirements of Category B and proven 
safety principle specifications must be applied. 
The safety function must be checked by the 
machine control system at appropriate inter-
vals. The requirements of category B and 
proven safety principle specifications must be 
applied. Safety-related parts must be designed 
to meet the following requirements:
•
Any single defect (fault) in a part must not 
cause any loss of the safety functions.
• If a single defect (fau lt) occurs, it must 
always be detected when the safety function 
can be reasonably implemented. •
A defect (fault) occurring 
during checking may cause a 
loss of the safety function.
• A loss of the safety function is 
detected by checking.
Characterized 
mainly by the 
structure

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