SJ100-002NFE to SJ100-022 NFE
SJ100-004HFE to SJ100-075 HFE
US Version
SJ100-002NFU to SJ100-022NFU
SJ100-004HFU to SJ100-075HFU
SJ100-037LFU
Japanese Version
SJ100-002LFR to SJ100-037LFR
SJ100-004HFR to SJ100-075HFR
After reading this manual, keep it at hand for future reference
Hitachi, Ltd.
NBS585XA
Tokyo Japan
Page 2
INDEX
‑i‑
1. Pre-operation Check
1-1. Check inverter model and Manufacturing number
1-2. Check inverter parameter and motor specification
2. Measurement of The Internal Voltage Supply
3. Trouble Shoot
3-1. Error messages - Possible Cause and Remedy
3-2. Analysis of Various Operating Problems That Do Not Trigger an Trip Message
3-3. How to Initialize the Data (FACTORY SETTING)
3-4. Error Message Comparison
3-5. Other Displays
3-6. Auto tuning under high incoming voltage
4. Ambient Condition of the Frequency Inverter (Temperature, Altitude)
4-1. Required Derating in case of 50deg., 55 deg. of Ambient Temperature
4-2. Required derating toward altitude
5. Level of Each Detection
5-1. DC Bus Voltage Detection Characteristics
5.2. Output Current Detection Characteristics
5.3. Motor Temperature Detection (PTC)
5.4. Over Temperature Detection of the Frequency Inverter
6. Measurement & Replacement of Subassemblies
6-1. Insulation Measurement
6-2. Power Components Measurements
7. Maintenance and Inspection Procedure
7-1. Precautions
7-2. Measurement of Mains Voltage, Current and Power
7-3. Maintenance of Parts
7-4. If you install replacement INV at site
8. Daily Inspection and Periodical Inspection
9. Image block diagram
10. Spare parts list
1-1
1-1
1-2
2-1
3-1
3-1
3-7
3-8
3-9
3-10
3-10
4-1
4-1
4-4
5-1
5-1
5-3
5-4
5-4
6-1
6-1
6-1
7-1
7-1
7-1
7-4
7-4
8-1
9-1
10-1
10-1. parts list
10-2. I/O board compatibility
10-3. O, OI terminal adjustment procedure (C81, C82)
10-4. kW setup procedure
10-5. I/O board schematic (circuit diagram)
10-1
10-13
10-14
10-15
10-16
Page 3
Revisions
Revision history table
No.Revision contentsDate of issueManual No.
-ⅰⅰ-
Page 4
1. Pre-Operation Check
Before starting adjustment and maintenance, be sure to check the following specifications of the inverter
and the motor.
1.1 Check Inverter model and Manufacturing number (MFG No).
Inverter model
MFG No.
M odel : SJ100-015NFE
HP/kW : 2 / 1.5
Input/ E ntree:
Output/Sortie: 1-360Hz
MFG No. 78H T1129670060
Hitachi, Ltd.
HITACHI
50,60Hz
50,60Hz
200-240 V
200-240 V
200-240 V
MADE IN JAPAN
1Ph
3Ph
3Ph
Date: 9708
NE16452-6
16.0 A
9.3 A
7.1 A
You can find these information from the specification label which attached at the side cover of the unit.
(1) Description of the model name.
EF015HSJ100
Version number
E: European version
Structure type
F: With operator
Input voltage class
N: Single/3 phase 20 0V class
L: 3 phase 200V class
H: 3 phase 400V class
U: US version
R: Japanese versionSeries name
(2) Description of MFG No.
T112967 0060H87
Revision of the inverter
Production Month
(1 - 9, 0:October, J:November, K:December)
Production year
(The unit digit of the year of grace. 7:1997, 8:1998, 9:1999, 0:2000)
Applicable motor kW
: 0.2kW002
: 0.4kW
004
: 0.55kW
005
: 0.75kW
007
: 1.1kW
011
: 1.5kW
015
Unique number
Production code
022
030
037
040
055
075
: 2.2kW
: 3.0kW
: 3.7kW
: 4.0kW
: 5.5kW
: 7.5kW
1-1
Page 5
1.2 Check Inverter parameter and motor specification.
13Output terminal 11 assignSetC21010101
14Output terminal 12 assignSetC22000000
15FM terminal conditionsetC23000000
16Function of AL terminal
setting
17Output terminal 11
condition
18Output terminal 12
condition
19AL output terminal
condition
20Level of overload signalSetC41notenotenoteRated current of
21Arrival frequency
while acceleration
22Arrival frequency
while deceleration
23Level of deviation signal
under PID control
24Analog input O adjustmentSetC81-----25Analog input OI adjustmentSetC82-----26Debug mode selectionSetC91000000
27Core monitor addressSetC92000000000000
28Core monitor dataSetC93-----29Core set addressSetC94D0001D000D000
30Core set dataSetC95------
SetC24050505
SetC31000000
SetC32000000
SetC33010101
each inverter
SetC420.00.00.0
SetC430.00.00.0
SetC443.03.03.0
Note 1
USP functi
on (NC) is allocated on US version and even another function such as CF1 is set, NO/NC
parameter is still the same. Therefore, please make sure the NO/NC parameter to suit the application.
1-5
Page 9
(6) Inverter specifications (Extended function mode : H group)
*1; don’t change the data
*2 ; factory set
*3 ; specified by the capacity of each inverter
1-6
Page 10
[2] Motor specifications.
Output voltage
V
0
Motor MFG number
Output
frequency
HzHz
[3] Load conditions
Equipment name
Torque characteristics
kWMotor output
pMotor poles
rpmMotor rated rpm
AmpsRated current
VRated voltage
HzRated frequency
AmpsStarting current
secAcceleration ti me
NmRequired torque
secDeceleration time
Load inertia (J)
kgm
1-7/E
2
Variable speed range
Hz to
Hz
Page 11
2. Measurement of the Internal Voltage Supply
There are PV5L, PV24L and NV12L internal DC voltage supplies. These supplies are isolated from the
main high voltage portion. And it is not possible to measure DC voltages at the non isolated portion.
Please make measurements for above mentioned voltages for the isolated portion.
Check pad of NV12Check pad of PV24
Check pad of PV5
1 pin of TM2 is “L”common
PV5L supply voltage
Supplies 5V for I/O board.
Nominal voltage : min. 4.90Vdc to max. 5.20Vdc
Check PV5(address 1C) <- L
PV24L supply voltage
Supplies 24V to interface voltage supply, which is supplied to input terminals.
Nominal voltage : min. 21.60Vdc to max. 26.40Vdc
Check PV24(address 1A) <- L
NV12L supply voltage
Supplies -12Vdc to remote operator (DOP/DRW’s yellow back light ).
Nominal voltage : max. -10.80Vdc to min. -17.5Vdc
Check NV12(address 3A) <- L
“H” terminal voltage
Suppiles 10V to “H” terminal
Nominal voltage : min 9.5Vdc to max 11.5Vdc
<->
Check “H”
“L” with VR (1kohm)
“Potentiometer function on the front case
Set “A01” :”00”
<->
Monitor “F01” display 0
50(60) with clockwise and anti clockwise.
Cooling FAN voltage (PV24N)
Supplies 24V to cooling FAN .
Nominal voltage min 19. 9Vdc to max 27.2Vdc.
Check Red wire
<-
Black wire with the FAN.
Check the FAN working, direction(from down to up).
2-1/E
Page 12
3. Trouble Shoot
3-1. Error Messages - Possible Cause and Remedy:
(1) Over current 1 (E 01, E 02, E 03, E 04)
Phenomena:Over current (CT or Rsh;gate driver IC) for each condition.
E 01 :Over current during constant speed operation.
E 02 :Over current during deceleration.
E 03 :Over current during acceleration.
E 04 :Over current at other condition than above mentioned.
(such as injection brake)
Cause:Load changed rapidly.
Remedy:Eliminate rapid changed in load.
Cause:Sort circuit or earth contact (ground fault) in the motor or the motor cable.
Remedy:Check with Megger. If the motor cable is disconnected from the inverter, the over
current should not be detected anymore.
Cause:A single-phase power failure (fuse, wire, ...) can cause a shutdown in certain
under load situations..
Remedy:Check all these mains phases and the mains fuses, preferably by comparison of
the three (two in case of single phase inverter) mains currents in a steady
operating state.
Cause:The motor is switched with a motor contactor during frequency inverter operation.
Remedy:Switching over the motor is inhibited.
Cause:Defect in the power component.
Remedy:Check the IGBT portion of ISPM.
Cause:Rapid acceler ation or deceleration.
Remedy:Set suitable acceleration or deceleration time.
Cause:St arting frequency is too high.
Remedy:Set starting frequency as low as possible.
Way to Reset:A
SJ100 has two kinds of detection; CT and Rsh. To resolve the detection at site, check the following
procedure.
1. Connect DOP/DRW.
2. Set F38 INIT DEBG ON. (to access debug mode)
3. Set F22 IPS POWR ALM mode, don’t set retry mode.
4. Test run and wait Over Current trip.
5. Set Core address “FBE4” if it’s 4kW or less.
5. Set Core address “FBE2” if it’s 5.5kW or above.
3-1
Page 13
Specimen ;
“CO FBE4 01 0000” ; under normal; 0Hz
“CO FBE4 15 0203” ; under over.C trip
“CO FBE4 15 C203” ; under OC.Drive trip.
“CO FBE4 15 4103” ; under OC.Accel trip
“FBE4” or “FBE2” is 1 byte data, the data is hex data. Example “4103”; “03” has no meaning.
Resolve “41”h bit by bit,
“41”h -> “0100 0001”b
if you found “xxxx xxx1” ; this means Over current detection from CT (CTU or CTW)
if you found “xxxx xx1x” ; this means Over current detection from Rsh
Standard operator is not available on this trouble shooting.
(2) Overload (E 05)
Phenomena:Overload (detected by CT) of the inverter.
This error can be reset 10 seconds after the E05 came out.
Cause:Motor load is heavy.
Remedy:Reduce the load and/or increase thermal level and/or use bigger capacity of
frequency inverter.
Cause:V- Boost value is high.
Remedy:Reduce V-Boost value or increase thermal level and/or use bigger capacity of
frequency inverter.
Cause:Set wrong value for electronic thermal level [b12] and/or electronic thermal
characteristic [b13].
Remedy:Set suitable value.
Cause:Set wrong value for the reactive current of the motor.
Remedy:Set suitable value. Reactive current value which should be input by function mode
is a value measured at 50Hz (60Hz) without load.
Way to Reset:A
(3) Braking Resistor Overload (over voltage) (E 06)
Phenomena:Over Voltage detection after BRD%ED was run out.
Cause:BRD select ion is not suitable.
Phenomena:Over voltage at DC bus line of the frequency inverter.
Cause:Mains voltag e too high, mains voltage fluctuation or rapid mains voltage return
(choke energy leads to voltage increase).
Remedy:Make sure that mains voltage is within tolerance limits.
Cause:In case SJ100 is used in combination with a regenerative braking unit(ISPM)/
resistor but the regenerative braking unit(ISPM)/resistor does not function.
Remedy:Replace regenerative braking unit(ISPM)/resistor.
Cause:In case SJU100 is used in combination with a raking resistor but the braking
resistor cannot absorb the regenerative energy.
Remedy:Re-calculate and use suitable braking resistor.
Cause:Deceler ation time is too short.
Remedy:Make deceleration time longer, use braking unit (resistor), use bigger capacity of
frequency inverter.
Way to Reset:A
(5) Under voltage (E 09)
Phenomena:Under voltage at DC bus line of the frequency inverter.
Cause:The mains voltage is not available or not within the tolerance limits.
Remedy:Check all 3 (or 2) mains power supply voltage that it is within its specification.
Cause:T hyristor for smooth charging is defect and DC bus voltage drops while operation
due to current flows through smooth charging resistor.
Remedy:Change ISPM.
Cause:Period of instantaneous power failure is longer than the set value [b02], or DC bu s
voltage go down to its detecting level while instantaneous power failure.
Remedy:Get rid of the instantaneous power failure, evaluate the power supply system, set
bigger value for [b02].
Cause:O ne of the AC voltage is missing (applied only for 3 phase INV)
Remedy:Check AC line voltage , check the fuses.
Way to Reset:A
(6) EEPROM error (E 08)
Phenomena:Abnormal situation occurs at the memory portion of the frequency inverter due to
incoming noise etc..
Cause:I nfluenced by Electrical Magnetic Interference.
Remedy:Keep such noise source away from the frequency inverter.
Cause:Am bient temperature is too high.
Remedy:Take countermeasure against high ambient temperature.
3-3
Page 15
Cause:Re- power up the frequency inverter short time after power off. It is necessary to
keep several seconds after power off to memorize the current data at EEPROM. If
this time is too short, this storage performance cannot be done and leads to
EEPROM error.
Remedy:Keep certain time between power off and re-power up.
Cause:You didn’t wait 6 seconds or more at FACTORY SETTING.
Remedy:Please try FACTORY SETTING again.
Cause:RS t erminal was keeping “ON” at power off. (If RS is on, INV can not write the
correct data to EPROM at power off, next power on E08 will come out.)
Remedy:Please don’t use “RS” terminal “ON” at power off.
Cause:EEPRO M is def ect.
Remedy:Change unit.
After you reset the INV, please make sure the parameters espec ially maximum freq. / A cc /Dec
time / Low limit freq. to prevent any damage.
Way to Reset:A or Power off
(7) CT error (E 10)
Phenomena:When abnormality noise is near the INV or an abnormality (off set level is out of
spec.) occurs on built in CT.
Cause:I nfluenced by Electrical Magnetic Interference. (such as near contactor on/off)
Remedy:To Resolve if it’s influence, use another power line and don’t connect motor wires,
control wires. If no error comes out, resolve noise causes.
Cause:CT offset level failure
Remedy:To Resolve if it’s failure, use another power line and power on and check if E10
comes out at power on. If E10 came out , use (replace) another INV(ISPM).
Way to Reset:A or Power off
(8) CPU error (E 11, E 22)
Phenomena:Abnormal situation or malfunction of micro processor inside frequency inverter.
E 11 :CPU error from MCU inside core.
E 22 :CPU error from MCU on I/O board.
E22 is produced by MCU on I/O board and the causes is communication error between ISPM & M CU
on I/O board.
Cause:Cable ( between ISPM and I/O board)was cut. (E22)
Remedy:Replace the cable.
Cause:Dust s on the pins of CN2 on I/O board. (E22)
Remedy:Remove the dusts.
Cause:I nfluenced by Electrical Magnetic Interference.
Remedy:Keep such noise source away from the frequency inverter.
Cause:Am bient temperature is too high.
Remedy:Take countermeasure against high ambient temperature.
3-4
Page 16
Cause:Com ponent itself is defect.
Remedy:Replace ISPM (in case of E 11) or I/O board board (in case of E 12).
(9) External Trip (E 12)
Phenomena:Trip due to have inputted an external signal to “EXT” input terminal of the
frequency inverter.
Cause:Fault y external device or equipment gives frequency inverter a trip requirement
when external trip function (EXT) is selected.
Remedy:Evaluate external device or equipment which is connected to frequency inverter.
Way to Reset:A
(10) USP error (E 13)
Phenomena:Unexpected Start Protection. This error can occur when “USP” function is
selected.
Cause:Fr eq uency inverter trips when it is powered up with RUN command is given.
Remedy:Disable RUN command when power up the frequency inverter. Or disable USP
function if possible to the system.
Way to Reset:A or set RUN command off (stop)
(11) Ground fault error (E 14)
Phenomena:Earth contact in the motor or the motor cable or in the IGBT. Frequency inverter
detects this earth contact only at power up.
To resolve the causes , please power off and disconnect the motor wire at INV (UVW)terminal.
Cause:Ear th contact in the motor or the motor cable.
Remedy:Check the impedance between output portion(wire and motor) and earth.
Cause:Det e ct ion circuit /IGBT of the inverter is defect. If the m otor and t he mot or cable is
disconnected from the frequency inverter, the ground fault should not be detected
anymore.
Remedy:Please disconnect the motor and the motor cable.
If E14 comes out at power on, please replace the unit.
Way to Reset:Don’t reset.
(12) Over voltage at source (E 15)
Phenomena:High voltage at power source line. Frequency inverter cannot protect source over
voltage. If it is too high, frequency inverter will be damaged.
Cause:Sour ce voltage is too high.
Remedy:Check the source voltage continously.
Insert AC reactor at source lines.
Way to Reset:A
3-5
Page 17
(13) Over temperature (E 21)
Phenomena:Temperature sensor which located close to IGBT inside ISPM shows a too high
temperature.
Cause:Vent ilator blocked. (for models which has ventilator.)
Remedy:Check ventilator
Cause:The frequency inverter does not get enough cooling air.
Remedy:Check cabinet ventilation, air filters, and ventilation openings in the cabinet.
Way to Reset: A
(14) PTC error (E 35)
Phenomena:Resistance of motor thermistor is high. This error can occur when you select
“PTC” function.
Cause:Too much load of the motor.
Remedy:Reduce the load, use bigger motor.
Cause:Motor t hermist or is not connected while PTC function is selected.
Remedy:Disable PTC function when it is not used.
Cause:Char acteristics of the motor thermistor is not suitable. Frequency inverter gives
PTC error when the resistance value becomes more than 3k ohm +-10%.
Remedy:Use motor which has suitable thermistor for the inverter.
Or change thermistor characteristics of the thermistor by debug mode.
Way to Reset:A
Explanation of the way to reset.
A :Make close the terminals between RS and P24 (CM1 only for Japanese version) on the I/O board, or
press “STOP/RESET” key of the operator.
3-6
Page 18
3-2. Analysis of Various Operating Problems That Do Not Trigger an Trip
message.
ProblemPossible causeRemedy
The motor does not startMode of frequency command [A01]
and/or Run command [A02] is not
proper
Incorrect power supply conditionCheck that the power supply is
Inverter is in trip modeGet rid of the trip cause
0 Hz of Multi-stage speed is given
FRS and/or RS is remainingMake FRS and RS invalid
0 Hz command is given
Each phase to phase voltage does
not balance. (out of +-3%)
Load is too heavyDecrease the load or use bigger
If you use DOP or DRW, DIP
switch selection of the operator is
incorrect.
Check each mode again
within its specification
Replace the unit
capacity of inverter and motor
Set as follows
Same as J300, J100,L100
Inverter FailureReplace the unit
Rotation direction is
opposite
Motor does not increase
speed
The inverter cannot be
programmed
Unstable rotation of the
motor
Data is not changedForgot to press [STR] keyPress [STR] key after changing
Cannot change data by
Copy Unit
Wiring of the mo tor cable is
incorrect (U, V, W)
Setting of [F04] is incorrectCheck the setting
Motor load is too heavy
(Overload limitation)
External frequency set (VR) is out
of order
Frequency limiter [A61] is setElim inat e fr equency limiter
Acceleration time is too shortSet longer acceleration time
Software lock is selected [b31]Make software lock invalid
While INV runningStop the INV
RS or FRS command is givenMake them invalid
Multi stage speed command is
given
Loose connection of DOP/DRWConnect DOP/DRW properly
Inverter is in trip modeReset the inverter
Motor load is changing heavilyReduce t he motor load changing
Source voltage is changingReduce the changing
Mechanical resonanceChange output frequency
Turn main power off within 6
seconds after pressing [STR] key
Turn power off within 6 seconds
after started copying
Check the wiring of the motor
cable
Remove or decrease the motor
load
replace VR
Make inverter in stop mode
or use bigger capacity of inverter
and motor
data
Make sure to wait at least 6
seconds after [STR] key is pressed
Make sure to wait at least 6
seconds
3-7
Page 19
3-3. How to Initialize the Data (FACTORY SETTING)
1. Select the mode of initialization data to which you want to initialize by [b85].
Japanese version data-----> Set “00” and store
EU version data----->Set “ 01” and store
US version data----->Set “ 02” and store
2. Set [b84] to “01” to initialize and store.
3. Keep pressingkeys at the same time.
FUNC.
2
1
(If front case is not closed by the screw, difficult to press 3keys.)
FUNC.
STOP
RESET
2
1
4. Additionally press key and release key approximately after one second.
5. Keep pressing keys until “d 00” will blink. (Approximately 2 seconds.)
driving (CT or gate driver IC)
Over current while deceleration (CT or
gate driver IC)
Over current while acceleration (CT or
gate driver IC)
Over current at other condition than
above(such as 0Hz,injection brake)
(CT or gate driver IC)
Over load
(Possible to reset after 10 seconds
has passed, detected by CT)
Over voltage after the BRD%ED
was run out. (DC bus)
Over voltage (DC bus)
Over. V
EEPROM error
EEPROM
(Check the parameters again if this
error occurred)
Under voltage (DC bus)
Under. V
CT
CPU 1
CPU 2
External
USP
GND Flt
OV. SRC
OH FIN
PTC
CT offset error such as external noise
or CT itself
CPU error
External error
USP error
Ground fault at power-on detected by
CT
Over voltage at source (DC bus)
(continuously 100sec while stop)
Over temperature (in the ISPM)
PTC error (only terminal 5 )
3-9
Page 21
3-5. Other Displays
Digital PanelContents
- Reset terminal is ON
- During initialization (such as at power-on)
- Voltage is within UV level
- Power OFF
- During retry mode
- During initialization as EU settings
- During initialization as US settings
- During initialization as Japanese settings
- Erasing trip histories
- Copying with DRW,DRW-2
- When there is no data
(i.g. feedback data of PID, etc.)
Auto tuning was done.
Auto tuning was failed.
3-6. Auto tuning under high incoming voltage
If Auto tuning is not successful , try following procedure.
1. Set C91 “01” and press STR key. (to access debug mode)
2. Set H01 “01” and press STR key. (to do auto tuning)
3. If the SJ100 is 4kW or less, set C94 “fb82” and press STR key.
3. If the SJ100 is 5.5kW or above, set C94 “fb80” and press STR key.
4. Set C95 “0000” and press STR key.
5. Run command ON. (Run key or FW terminal) to get started Auto Tuning.
3-10/E
Page 22
4. Ambient Condition of the Frequency Inverter
4-1. Required Derating in case of 50deg, 55deg of Ambient Temperature
Inverter ratings can be influenced by many factors. You can find in this section, the relation between
ambient temperature and output current (%) and carrier frequency.
Standard ratings in 40 degree C
Top cover removed condition in 50 degree C max.
Top cover removed condition in 55 degree C max.
% rate of output
current
100%
90%
80%
70%
Carrier frequency [kHz]
100%
SJ100-002NFE(U)
SJ100-007NFE(U)
% rate of output
current
100%
1614121086420.5
100%
SJ100-004NFE(U)
90%
80%
70%
1614121086420.5
Carrier frequency [kHz]
SJ100-015NFE(U)
90%
80%
70%
Carrier frequency [kHz]
90%
80%
70%
16
14121086420.5
Carrier frequency [kHz]
1614121086420.5
4-1
Page 23
SJ100-022NFE(U)
SJ100-037LF(U)
100%
90%
80%
70%
100%
90%
Carrier frequency [kHz]
SJ100-004HFE(U)
100%
90%
80%
70%
60%
50%
1614121086420.5
40%
Carrier frequency [kHz]
1614121086420.5
SJ100-007HFE(U)
100%
90%
80%
70%
60%
50%
40%
100%
90%
80%
70%
Carrier frequency [kHz]
SJ100-015HFE(U)
80%
70%
60%
50%
1614121086420.5
40%
Carrier frequency [kHz]
1614121086420.5
SJ100-022HFE(U)
100%
90%
80%
70%
60%
50%
40%
Carrier frequency [kHz]
60%
50%
16
14121086420.5
40%
Carrier frequency [kHz]
1614121086420.5
4-2
Page 24
100%
90%
80%
70%
60%
50%
SJ100-040HFE(U)
40%
100%
90%
80%
70%
Carrier frequency [kHz]
SJ100-055LFU
Carrier frequency [kHz]
SJ100-055HFE(U)
16
14121086420.5
SJ100-075LFU
100%
90%
80%
1614121086420.5
70%
1614121086420.5
Carrier frequency [kHz]
SJ100-075HFE(U)
100%
90%
80%
70%
Carrier frequency [kHz]
4-3
100%
90%
80%
70%
1614121086420.5
Carrier frequency [kHz]
1614121086420.5
Page 25
4-2. Required derating toward altitude
100%
90%
80%
70%
1000
200030004000
Altitude [m]
Example of calculation
SJ100-007NFE (4 Amps) is installed at 2000m of altitude and 16kHz of carrier frequency.
Required derating of output frequency of this case will be as follows.
4 [Amps] * 90% * 95% = 3.4 [Amps]
Carrier frequency derating
Altitude frequency derating
<Note 1> When the top cover is removed for the high ambient temperature, inverter should be installed
in an enclosure of IP 4* (see EN60529) to comply with LVD directive.
<Note 2> If class B of EMC directive is required, carrier frequency must be set to 5kHz.
4-4/E
Page 26
5. Level of Each Detection
5-1. DC Bus Voltage Detection Characteristics
Frequency inverter has several detection characteristics for DC bus voltage as followings.
[1] 200V class
DC bus
voltage [Vdc]
400
Over voltage level
395V +- 20V
350
300
250
200
150
100
50
Trip
Reset
0
Trip
Actual DC bus
voltage
on
BRD on/off level
370V +-20V
Under voltage
recovering level
220V +- 10V
Under voltage
level
190V +- 10V
Trip
on
Display
example of
monitoring output
frequency
Over
voltage
trip
During
Under
voltage
OV.SRC level ; 375V +- 20V (continuously 100sec while stop)
BRD circuit has no hysterisys
5-1
Under
voltage
trip or
Waiting
for Retry
Page 27
[2] 400V class
DC bus
voltage [Vdc]
800
Over voltage level
790V +- 40V
700
600
500
400
300
200
100
0
Trip
Reset
Trip
Actual DC bus
voltage
Trip
onon
BRD on/off level
740V+-40V
Under voltage
recovering level
440V +- 20V
Under voltage
level
380V +- 20V
Display
example of
monitoring output
frequency
Over
voltage
trip
During
Under
voltage
Under
voltage
trip or
Waiting
for Retry
OV.SRC level ; 750V +- 40V (continuously 100sec while stop)
5-2
Page 28
5-2. Output Current Detection Characteristics
Frequency inverter has several detection characteristics for output current to protect IGBT from break
down, or to protect motor from over heat.
[1] Over current
Frequency inverter shuts off the output instantaneously when output current exceeds to 220%( 190)
of its rated current. (OC level is no link with Electronic thermal level)
e.g. Over current protection level of SJ100-015NFE (7.1 Amps of rated current) is
7.1 [Arms] * 200% = 14.2 [Arms] = 20.1 [A peak]
[2] Over load (Ele ctronic thermal pro te ction)
Frequency inverter shuts off the output when integration value of output current and time exceeds
specific value.
time
180s
No over load trip with
115% load
120s
60s
0
100%
% output current of the rated current of the frequency inverter
E-Thermal Level = [100]
Over Current trip
220%(-> 4kW)
190%(5.5kW ->)
150%, 60s
180%, 10s
220%(190%)150%
This Electronic thermal level can be changed from 50% to 120%. (Initial setting is 100%.)
time
180s
E-Thermal Level = [50]
120s
60s
150%, 60s
180%, 10s
0
50%
% output current of the rated current of the frequency inverter
100%
220%(190%)150%
5-3
Page 29
5-3. Motor Temperature Detection (PTC)
Frequency inverter has a motor temperature sensor input (PTC input : PTC resistor).
When the resistance value is more than 3k ohm +-10%, the frequency inverter trips with “E35”.
SJ100 inverter
U
V
W
L5(PTC)
Motor
PTC thermistor
Except Japanese version
5-4. Over Temperature Detection of the Frequency Inverter
Frequency inverter has a temperature detection against power devices of the main circuit. Frequency
inverter shuts down the output when temperature around IGBT comes up to 120 degree C.
5-4/E
Page 30
6. Measurement & Replacement of Subassemblies
6-1. Insulation Measurement
For SJ100 inverter,
do not perform insulation measurements
, otherwise MOV will be damaged.
(MOV; between R(L1)-G, S(L2)-G, T(L3)-G)
6.2. Power Components Measurements.
When checking the power components, the following procedure is recommended:
Clear voltage
!
W ait for capacitors discharge
!
Check capacitors for neutrality
!
Disconnect mains and motor wires
!
Test the diodes and IGBTs using a universal tester with a diode function.
!
Visual check is important for the ISPM, check the appearance such as smoke trace.
Note:
[1] DC BUS Measurement
Check “+” <- “ - ” voltage Zero.
In this test, the absolute values are not so important, since they depend strongly on the test
device used. The uniformity of the measured value is more important.
Resistance Measurement
From
+
To
-
Allowable Value
50kohm or more
P1, PD are located on the CB board / snubber board.
Check “+1” and “+” terminal are shorten by (copper) bar.
This is to measure 6 rectifiers of the input side.
Resistance Measurement
From
R(Ll)
S(L2)
S(L2)
T(L3)
T(L3)
R(Ll)
R(Ll)
S(L2)
T(L3)
S(L2)
R(Ll)
T(L3)
S(L2)
R(Ll)
T(L3)
R(Ll)
S(L2)
T(L3)
To
-
P1PDTHY
Main circuit of SJ100
RS
Allowable Value
50kohm or more
50kohm or more
+1
+
+
Rsh
T(L3)
-
Each R(Ll), S(L2) and
50 ohm or less
T(L3)
Each R(Ll), S(L2) and
P1
50 ohm or less
T(L3)
P1
Each R(Ll), S(L2) and
50kohm or more
T(L3)
To make sure MOV, visual check of MOV is necessary on the ISPM.
CTU
U
V
W
CTW
If the result is out of its spec, replace the unit. ( relative check is important )
MOV(ZNR);ZNR1,ZNR2,ZNR3 are for phase to phase
MOV(ZNR);ZNR4,ZNR5,ZNR6 are for phase to ground
6-2
Page 32
[4] IGBT Measurement
Resistance Measurement
From
+
+
+
U
V
W
-
-
U
V
W
If the result is out of its spec, replace the unit.
Please note that this cannot cover 100% to find IGBT failure because if the power devices in failure,
To
U
V
W
+
+
+
U
V
W
-
-
-
Allowable Value
50kohm or more
50 ohm or less
50 ohm or less
50kohm or more
Rsh
DC current detecting
resistor (shunt resistor)
(Order of mili ohm)
sometimes you can find the failure in components while they are activated. (You cannot find the failure
while they are not activated.)
[5] Cooling FAN voltage circuit in the ISPM (PV 24N)
Check “b92” is preset “”00 (FAN to be worked) and disconnect the cooling FAN
Resistance Measurement
From
Pin(up) (Red)
Pin(up) (Black)
( relative check is important )
[6] Cooling FAN
Disconnect the cooling FAN and measure impedance of FAN circuit.
Resistance Measurement
From
Red wire
Black wire
( relative check is important )
[7] BRD(RB,+,-)
Disconnect BRD resistor.
Red wire, Black wire mean tester’s wires.
Resistance Measurement
+
Black wire
Red wire
(only reference)
Resistance Measurement
RB
Black wire
Red wire
(only reference)
Pin(down) (Black)
Pin(down) (Red)
To
To
Black wire
Red wire
RB
Red wire
Black wire
-
Red wire
Black wire
Allowable Value
20kohm or more
50ohm or less
Allowable Value
50kohm or less
100kohm or more
Allowable Value
100kohm - 400kohm
8ohm – 14ohm
Allowable Value
100kohm – 700kohm OL(initial charge)
2kohm – 4kohm
6-3/E
Allowable Value
Diode drop V
0.3 – 0.5
OL
Allowable Value
Diode drop V
OL
+
Page 33
7. Maintenance and Inspection Procedure
7-1. Precautions
(1) Maintenance and Inspection Precautions
Be sure to check the followings before starting maintenance and inspection because there is a
danger of electrical shock.
Display on the digital operation panel and POWER indication has been turned OFF.
!
The voltage between + and - is 15Vdc or lower.
!
Discharging resistor (500 ohm 30W for 200V class, 1k ohm 60W for 400V class) has been
!
connected between + and - terminals for 15 seconds or more after main power had turned off,
(2) General Precautions
Always keep the unit clean so that no dust nor other foreign materials come inside of the
!
frequency inverter.
Pay attention to broken lines and faulty connections. Firmly connect terminals and connectors.
!
Keep frequency inverter away from moisture and oil.
!
Dusts, steel filings, swarf , and other foreign materials can damage insulation and causing
!
unexpected accidents/failure. Please pay attention to them.
7-2. Measurement of Mains Voltage, Current and Power
General measuring instruments for mains voltage, current and power are shown in Table 7-1.
The voltage to be measured is the effective value of fundamental wave, and the power to be measured
is the total effective value.
(1) Measurement of output voltage
Moving iron type instrument does not show accurate values for measurement of the output voltage.
Make measurements according to the method shown in Fig. 7-3 (table 7-1) or using the circuit
indicated in Fig. 7-1 and 7-2.
Frequency
Inverter
U
V
W
2W
220kohm
Diode
600V 0.1A or above (200V class)
1000V 0.1A or above (400V class)
Fig. 7-1. Output voltage measurement circuit (with load)
Motor
+
-
Load
Fundamental wave
effective value : V
V
DC
Moving coil type DC Volt meter
300V (200V class)
600V (400V class)
AC
= VDC * 1.1
7-1
Page 34
When there is no motor connected to the inverter, please use additional resistor like Fig. 7-2. There
will be a voltage at output terminal even the frequency command is naught due to the lea kage current
of the semiconductor devices.
Frequency
Inverter
Additional resistor
5kohm 30W (200V class)
100W (400V class)
U
V
W
2W
220kohm
Diode
600V 0.1A or above (200V class)
1000V 0.1A or above (400V class)
Fig. 7-2. Output voltage measurement circuit (without motor)
+
-
Fundamental wave
effective value : V
V
DC
AC
Moving coil type DC Volt meter
= VDC * 1.1
300V (200V class)
600V (400V class)
(2) Measurement of Input voltage and Input / output current
Use moving iron type ampere meter. (Refer to Fig. 7-3 and Table 7-1.)
(3) Measurement of Input and output power
Use electrodynamics type watt meter for single phase use. Make measurements for all 3 phases is
case there is an unbalance in voltages and currents.
L1
L2
L3 / N
I
R
E
R
I
S
E
S
I
T
E
T
W
W
Fig. 7-3. Measurement Instruments
Frequency Inverter
L1
11
L2
12
L3 / N
U/T1
V/T2
W/T3
I
U
E
U-V
I
V
E
V-W
I
W
E
U-W
W
W
O1
Motor
O2
7-2
Page 35
Table 7-1 Measuring Instruments
Item
Suppl y voltage
E1
Supply current
I1
Supply power
W1
Supply power
Factor Pf1
Output voltag e
Eo
Output current
E
L1-L2
, E
Instruments
and E
L2-L3
L3-L1
Moving iron type voltmeter or
Type of Instrument
Rectifier type voltmeter
IL1, IL2 and I
W11 and W
L3
12
Moving iron type ammeter Total effective value
Electrodynamics wattmeter Total effective value
Calculate from above measured values E1, I1 and W1
W
1
Pf
=
E
, E
U-V
V-W
IU, IV and I
1
⋅⋅
3
EI
and E
W
11
W-U
100
(%)
×
According to Fig.7-1 and Fig.7-2 Total effective value
Moving iron type ammeter Total effective value
Remarks
Fundamental wave
effective value
Io
Output power
WO1 and W
O2
Electrodynamics wattmeter Total effective value
Wo
Output power
Calculate from above measured values Eo, Io and Wo
factor Pf2
W
1
Pf
=
O
3
EI
⋅⋅
OO
×
100
(%)
NOTE :Use a meter indicat ing a fundamental wave effective value for voltage, and meters indicating
total effective values for current and power.
7-3
Page 36
7-3. Maintenance of Parts
(1) Maintenance of printed circuit board (I/O board)
Printed circuit boards are maintenance free under normal applications except ALARAM relay
(hardware). However, in case which maintenance and inspection are necessary, pay attention to
the prevention of damage caused by static electricity as shown below.
* Prevent damage caused by static electricity
MCU and LSI on the printed circuit board can be destroyed by static electricity. Therefore be
sure to ground work benches, soldering irons and yourself before start working on a printed
circuit board.
(2) Maintenance of DC bus capacitor and cooling fan
We recommend that DC bus capacitors and cooling fans to be regularly replaced every three y ears
taking their lives into account. Please note that their life span shorten when they are used in high
temperatures and heavy loads.
Ambient
temperature (deg)
40
30
20
10
0
-10
7-4. If you install replacement INV at site
If you install replacement units at site, please preset the parameter by the panel or copy unit.
Capacitor Life Curve
210
Capacitor life time (year)
436587109
12 hours a day
operation
When the inverter is installed in a cabinet,
ambient temperature is the temperature in
the cabinet.
If you used the previous I/O board to replacement unit, the parameters are not changed.
Because parameters are memorized in the EEPROM on the control board on J100 /J300 series, and if
we used the previous control board to replacement unit at site to minimize the time. In case of
L100,SJ100 series, EEPROM is on the ISPM, even we replaced I/O board, the parameter is still the
same.
7-4/E
Page 37
8. Daily Inspection and Periodical Inspection
Inspection
point
8-1
Overall
Main
circuit
Item
Ambient
Environment
Devices overall Check for abnormal vibrations and
Power supply
voltage
Overall Check installation for looseness.
Terminal block No damage
DC bus
capacitor
Relay Check for stuttering noise when
Resistors Check for cracks or changes in color
Cooling fan Check for abnormal vibration and
Check ambient temperature,
humidity, dust, corrosive gas, oil mist,
etc.
noise.
Check voltage bet ween in put li nes .
Check for evidence of over heating in
the various components
Clean
Check for leaking liquid
Check for swelling
operation
noise
Check for dust
Contents
Cycle
daily
"
"
"
"
"
"
periodic
"
"
"
"
"
"
Method
Visual and aural
inspection
Measure the
voltage
between input
terminals
Tighten
Visual
inspection
Visual
inspection
Visual No abnormalities
inspection
Aural
inspection
Visual
inspection
-Rotate
manually while
power off
-Increase
tightening
Visual
inspection
Ambient temperature
: -10deg to 40deg,
no icing
No abnormalities.
Within its specification
Tightening torque
(except for terminal block)
M3: 0.5 - 0.6 N-m
M4: 0.98 - 1.3 N-m
No abnormalities
No abnormalities
No abnormalities
- Smooth rotation
- No abnormalities
Criteria
Standard
replacement
period
2 - 3 years
Instruments
Thermometer
Hygrometer
Tester
Tester
Page 38
8-2/E
Inspection
point
Control circuit
Display
Item
Operation check Check the balance of the output
voltage of each phase to phase
without motor.
Component
check including
PCB
Capacitors on
I/O board
Digital operation
panel
Perform a sequence protection
operation test and make sure that
there are no errors in the protection
and display circuits.
No abnormal odor nor changes in
color.
No significant corrosion.
No liquid leakage nor deformation.
- No illegible display
- No lack of character
- Segment failure of LEDs
Contents
Cycle
daily
"
"
periodic
"
"
"
"
Method
Measure the
output voltage
between U, V
and W
Simulate
operation of the
protection
circuit
Visual
inspection
Visual
inspection
Visual
inspection
Within 2% of voltage
difference between each
phases.
Operate without any
trouble
No abnormalities
No abnormalities
Normal operation.
Display is readable.
NOTE : 1. Life time of capacitor is affected by the ambient temperature. See Capacitor Life Curve in the following.
2. The frequency inverter must be cleaned periodically. If dust accumulates on the fan and heat sink, it can cause overheating.
3. See item 7-3 (2) for the life time of the capacitor.
Criteria
Standard
replacement
period
Instruments
See next
page
Page 39
9. Image block diagram
)
C
(LFU,NFE)
(1). IMAGE BLOCK DIAGRAM OF SJ100 INVERTER
*1
R(L1)
S(L2)
T(L3)
CORE INVERT ER
(IS PM)
CONVERTER
POW ER S UPPLY
DETECT V,I
DC REACTOR
(OPTION)
PD(+1)
RS
BRD resistor(option)
P(+)
+
SUB CO ND E N C ER BOAR D( HFx)
RB
N(-
B
Tr BR
I/O BLOCK
(I/O board)
MCU
+
+
INVERTER
U(T1)
V(T2)
W(T3)
OPERATION PANEL WITH
POTENTIOMETER
HITACHI
DRIVE CIRCUIT
SERIAL
COMMUNICATION
MCU
EEPROM
ISORATION
EMC DIRECTIVE COMPLIAN T WITH DEDICATED NOISE FILTER( OPTION)
Note; Main circuit capacitor CB; HFE,HFU; seri al connection.
; LFU,NFE; single connection.
COMMUNICATION
PORT
TERMINALS
US E R IN T E RFACE
REMORT OPERATOR
9-1/E
Page 40
Page 41
10-1. Spare Parts list
;
;
No
1D2548582T004556 1Key PAD (HITACHI)
2D2548572T004372 4Front case (S)
2D2548551T001784 4Front case (L)
3D2548593T015677 7Key cover
4D2548644T013420 4Volume KNOB
5D2548634T013419 4Top cover (S)
5D2548654T013459 4Top cover (L)
10-1
5D3T016369 4Top cover (LL)
6D2548562T004371 4Case (S)
Note;
"SJ100xxxEUx" ; "SOURCE type" on the control terminal(different from SINK).
"SJ100xxxL" ; "SINK type" on the control terminal.(different from SOURCE)
kW setup is not necessary such as J100 , J300 series for I/O board if I/O board was replaced.
There is no compatibility between L100 series and SJ100 series.
10-13
Page 54
10-3. O,OI terminal adjustment procedure
If you need the fine adjustment with out F31 IN EX%S, IN EX%E function(DOP/DRW), or A group A13,A14
function (on standard panel), refer to following procedure.
At first, stop the SJ100, and erase the INV trip (error) to change parameters.
O terminal adjus tment
Supply the DC10 [V] and if the freq. Setting(F01) is not enough max freq. , increase “C81” value and press
the “STR” key and check the result. If the freq. Setting (F01) is not enough, continue the above procedure.
OI terminal adjustment
Supply the DC20 [mA] and if the freq. Setting(F01) is not enough max freq. , increase “C82” value and press
the “STR” key and check the result. If the freq. Setting (F01) is not enough, continue the above procedure.
If the data was added, the freq. setting will be increased. ( concept is as same as J100,J300)
“C81” and “C82” are possible to preset while INV running.
10-14
Page 55
10-4. kW setup procedure
To set up kW, we advise you not to use DOP/DRW !, use only standard panel.
Meaning
set C91 "01" ; Debug on
set C94 "D000" ; kW address
set C95 "xx" ; kW code
set B84 "01" ; to execute FACTORY SETTING
Try FACTORY SETTING