Hitachi Sj7002 Owners Manual

							

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							Inverter Mounting 
and Installation
In This Chapter....page
— Orientation to Inverter Features........................................................   2
— Basic System Description.................................................................   5
— Step-by-Step Basic Installation.........................................................   6
— Powerup Test..................................................................................   27
— Using the Front Panel Keypad........................................................   29
— Emergency Stop Function...............................................................   37
2

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							Orientation to Inverter Features
Inverter Mountingand Installation
2–2
Orientation to Inverter Features
Unpacking and 
InspectionPlease take a few moments  to unpack your new SJ7002 inverter and perform these steps:
1. Look for any damage that may have occurred during shipping.
2. Verify the contents of the box include:
a.One SJ700
2 inverter
b. One Instruction Manual (supplied by printed book for –FU2/–FF2 models, supplied on 
CR-ROM for –FE2 models)
c. One SJ700
2 Quick Reference Guide
d. One packet of desiccant—discar d (not for human consumption)
3. Inspect the specifications label on the front or si de of the inverter. Make sure it matches the 
product part number you ordered.
Main Physical 
FeaturesThe SJ7002 Series inverters vary in size according to  the current output rating and motor size 
for each model number. All feature the same basic keypad and connector interface for 
consistent ease of use. The inverter construction  has a heat sink at the back of the housing. The 
fans enhance heat sink perform ance. Mounting holes are pre-dril led in the heat sink for your 
convenience. Never touch the heat sink during or  just after operation; it can be very hot.
The electronics housing and front  panel are built onto the front of the heat sink. The front panel 
has three levels of physical access designed for convenience and safety:
 First-level access  – for basic use of inverter and  editing parameters during powered 
operation (power is ON)
 Second-level access  – for wiring the inverter power supply or motor (power is OFF)
 Third-level access  – for accessing the expansion bay fo r adding/removing expansion boards 
(power is OFF)
1. First-level Access - View the unit just as it 
came from the box as shown. The
OPE-SRE or OPE-S digital operator 
keypad comes installed in the inverter. The 
four-digit display can show a variety of 
performance paramete rs. LEDs indicate 
whether the display units are Hertz, Volts, 
Amperes, or kW. Ot her LEDs indicate 
Power (external), and Run/Stop Mode and 
Program/Monitor Mode status. Membrane 
keys Run and Stop/Reset, and a Min/Max 
frequency control knob  (OPE-SRE only) 
control motor operation. These controls 
and indicators are us ually the only ones 
needed after the inverter installation is 
complete.
The FUNC., , , and STR keys 
allow an operator to change the inverter’s 
functions and parameter  values, or to select 
the one monitored on the 4-digit display. 
Note that some parameters may not be 
edited if the inverter is in Run mode.
12

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							SJ7002 Inverter
Inverter Mountingand Installation
2–3
2. Second-level access  - First, ensure no 
power source of any kind is connected 
to the inverter. If power has been 
connected, wait 10 mi nutes after power-
down and verify the Charge Lamp 
indicator is OFF to proceed. Then locate 
the two screws at the bottom corners of 
the main front panel. Use a Phillips 
screwdriver to loosen the screws and tilt 
the cover outward for removal. (The 
screws are retained in the cover.)
Notice the large power terminals  at the bott om of the wiring area. The rubber grommets 
below the power terminals are for wire entry/exit to the power source and motor. Never 
operate the inverter with  the front panel removed.
The control terminals connect logic or anal og signals for control and monitoring of the 
inverter. The nearby alarm relay provides both  normally-open and normally-closed logic for 
interface to an external alarm. The alarm circuit may carry hazardous live voltages even 
when the main power to the inverter is OFF. S o, never directly touch any terminal or circuit 
component.
WARNING:  Be sure to wait 10 minutes after powerdown and verify the charge lamp indicator 
is OFF to proceed. Otherwise there is the risk of electric shock.
Retention screws
Wire entry/exit plate
Logic connector
Power terminals
Charge lamp  indicator

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							Orientation to Inverter Features
Inverter Mountingand Installation
2–4
3. Third-level access - The SJ7002  
provides for field installation of 
interface circuits. These circuits are 
on expansion cards, to be installed in 
the expansion bay. To access the 
expansion bay, you will need to 
remove the upper front panel. Use 
the latch to release the digital 
operator (the panel filler plate may 
remain). Remove the two retention 
screws the bottom corners of the 
upper front panel. Lift up at the 
bottom, then disengage the two 
hinge latches at the top.
The expansion bay has two sites for 
adding expansion cards. Each card 
connects via the interface connector, 
and mounts using three standoff 
screw locations. Further details on 
accessories are in Chapter 5. You 
may also refer to the instruction 
manual that comes with each type of 
expansion card.
The following sections will desc ribe the system design and guide you through a step-by-step 
installation process. After the section on wiring, this chapter will show how to use the front 
panel keys to access functi ons and edit parameters.Latch to release digital operator
Retention screws
Expansion bayExpansion connectors

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							SJ7002 Inverter
Inverter Mountingand Installation
2–5
Basic System Description
A motor control system will obviously include a  motor and inverter, as well as a breaker or 
fuses for safety. If you are connecting a motor to th e inverter on a test bench just to get started, 
that’s all you may need for now. But a system ca n also have a variety of additional components. 
Some can be for noise suppress ion, while others may enhance the inverter’s braking perfor-
mance. The figure and table below show a syst em with all the optional components you may 
need in your finished application.
NOTE: Some components are required for regulatory agency compliance (see Chapter 5 and 
Appendix D).
Thermal switch
Breaker, 
MCCB or  GFI
NameFunction
Breaker / 
disconnect A molded-case circuit breaker (MCCB), ground 
fault interrupter breaker (GFI), or a fused disconnect 
device. NOTE: The installer must refer to the NEC 
and local codes to ensure
 safety and compliance.
Input side
AC Reactor This is useful in suppressing harmonics induced on 
the power supply lines, or when the main power 
voltage imbalance exceeds 3% (and power source 
capacity is more than 500 kVA), or to smooth out 
line fluctuations. It also 
improves the power factor.
Radio noise filter Electrical noise  interference may occur on nearby 
equipment such as a radio receiver. This magnetic 
choke filter helps reduce radi ated noise (can also be 
used on output).
EMI filter (for 
CE applications, 
see Appendix D) This filter reduces the cond
ucted noise in the power 
supply wiring between the  inverter and the power 
distribution system. Conn ect it to the inverter 
primary (input side).
Radio noise filter 
(use in non-CE 
applications) This capacitive filter reduces
 radiated noise from the 
main power wires in th e inverter input side.
DC link choke The choke suppresses harmonics generated by the  inverter. However, it will not protect the input diode 
bridge rectifier. A DCL  reactor is required for 
models -185xxx to -4000xxx
Braking resistor Braking components are useful for increasing the  inverter’s control torque  for high duty-cycle (ON-
OFF) applications, and im proving the decelerating 
capability.
Braking unit
Radio noise filter Electrical noise 
interference may occur on nearby 
equipment such as a radio receiver. This magnetic 
choke filter helps reduce radi ated noise (can also be 
used at input).
Output side
AC reactor This reactor reduces the 
vibrations in the motor 
caused by the inverter’s switching waveform, by 
smoothing the waveform  to approximate commer-
cial power quality. It is also useful to reduce 
harmonics when wiring fro m the inverter to the 
motor is more than  10m in length. 
LCR filter Sine wave shaping f ilter for output side. The LCR 
filter is not required fo r models -1850xxx to -
4000xxx.
Powe r sou rc e
Inverter
Motor
L1 L2 L3
T1 T2 T3 RS T
GND
UVW RB
R0
T0 PD(+1)
P(+)
N(–)

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							Step-by-Step Basic Installation
Inverter Mountingand Installation
2–6
Step-by-Step Basic Installation
This section will guide you through the  following basic steps of installation:
1. Study the warnings associated with mounting the inverter.
2. Transport or lift the inverter (and DC  reactor, if used) in a safe manner.
3. Select a suitable mounting location.
NOTE: If the installation is in an EU country,  study the EMC installation guidelines in 
Appendix D.
4.Cover the inverter’s top ventilation opening s to prevent debris from falling inside.
5. Check the inverter mounting dimensions  for footprint and mounting hole locations.
6. Study the caution and warning messages a ssociated with wiring the inverter.
7. Connect wiring for the inverter power input.
8. Connect wiring to the motor.
9. Uncover the inverter’s ventilation ope nings that were covered in Step 3.
10. Perform a powerup test.
11 .  Make observations and check your installation.
Step 1: Study the following caution me ssages associated with mounting the inverter. This is the 
time when mistakes are most likely to occur that will result in expensive rework,  equipment 
damage,  or personal injury.
CAUTION:  Be sure to install the unit on flame-resistant material such as a steel plate. Other-
wise, there is the danger of fire.
CAUTION: Be sure not to place any flammable material s near the inverter. Otherwise, there is 
the danger of fire.
CAUTION:  Be sure not to let the foreign matter en ter vent openings in the inverter housing, 
such as wire clippings, spatter  from welding, metal shavings, dust, etc. Otherwise, there is the 
danger of fire.
CAUTION:  Be sure to install the inverter in a place that can bear the weight according to the 
specifications in the text (Chapter 1, Specificat ions Tables). Otherwise, it may fall and cause 
injury to personnel.
CAUTION:  Be sure to install the unit on a perpendi cular wall that is not subject to vibration. 
Otherwise, it may fall and cause injury to personnel.
CAUTION: Be sure not to install or operate an invert er that is damaged or has missing parts. 
Otherwise, it may cause injury to personnel.
CAUTION: Be sure to install the inverter in a well-v entilated room that does not have direct 
exposure to sunlight, a tendency for high temperature, high humidity or dew condensation, high 
levels of  dust, corrosive gas, explosive gas, in flammable gas, grinding-fluid mist, salt air, etc. 
Otherwise, there is the danger of fire.
1
Choosing a 
Mounting 
Location

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							SJ7002 Inverter
Inverter Mountingand Installation
2–7
The position and orientation of the  inverter are very important. Install the inverter vertically and 
securely with screws or bolts on a surface that  is free from vibrations and that can bear the 
inverter’s weight. If the inverter is not instal led vertically, its cooling performance may be 
degraded and trip events or inverter damage may  result. If the inverter requires an external DC 
reactor, do not install the reac tor directly under the inverter. 
SJ700
2 Series inverter models -1850hFx2 to - 4000hFx2are very heavy. For example, the 
315kW inverter weighs about 463 lbs. (210kg). Therefore, be careful when loading and 
transporting these inverters. Use the eyebolts on the inverter housing and frame to lift the 
inverter. The diagrams below show different lift ing configurations to fit the orientations you 
may need.
Heated air
Heated air
Air flow
2
Transport or Lift 
in Safe Manner
Eyebolts
Eyebolts
Eyebolts
Upright inverter lifting: 
Use eyebolts at top of inverter Horizontal inverter lifting: Use eye-
bolts at front corners of inverter DC reactor lifting: 
Use bolts at top of frame

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							Step-by-Step Basic Installation
Inverter Mountingand Installation
2–8
St ep  2 : To summarize the caution messages—you will  need to find a solid, non-flammable, 
vertical surface that is in a relatively clean  and dry environment. In order to ensure enough 
room for air circulation around the inverter to aid in cooling, maintain  the specified clearance 
around the inverter specified in the diagram.
CAUTION:  Be sure to maintain the specified clearance area around the inverter and to provide 
adequate ventilation. Otherwise, the inverter  may overheat and cause equipment damage or fire.
St ep  3 : Before proceeding to the wiring section, it’s a 
good time to  temporarily cover the inverter’s ventilation 
openings. Paper and masking tape are all that is needed. 
This will prevent harmful debr is such as wire clippings 
and metal shavings from entering the inverter during 
installation.
Please observe this checklist while mounting the 
inverter:
1. The ambient temperature must be in the range of
-10 to 40°C. If the range will be up to 50°C 
(maximum rating), you will  need to refer to derate 
the output current performance of the inverter.
2. Keep any other heat-producing equipment as far 
away from the inverter as possible.
3. When installing the inve rter in an enclosure, 
maintain the clearance around the inverter and verify 
that its ambient temperature is within specification 
when the enclosure door is closed.
4. Do not open the main front panel door at any time 
during operation.
3
Ensure Adequate 
Ventilation
SJ700
5 cm (1.97”)  minimum 5 cm (1.97”)
 minimum
Exhaust
Air intake
Clear area
10 cm (3.9”) min., models -004 to -550;
30 cm (11.8”) min., models -750 to -4000
10 cm (3.9”) min., models -004 to -550;
30 cm (11.8”) min., models -750 to -4000;
Clearance to replace DC bus capacitors 
with inverter in place:
22 cm (8.7”) min., models -150 to -550,
30 cm (11.8”) min., models -750 to -4000;
4
Keep Debris Out 
of Inverter Vents
Cover the ventilation slots, both sides
Cover the fan outlet vents

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							SJ7002 Inverter
Inverter Mountingand Installation
2–9
Step 4:  Locate the applicable drawing on th e following pages for your inverter.
Dimensions are given in millimeters (inches)  format. Smaller models come equipped with 
NEMA1 adapter (conduit box) for wire entry  for U.S. models (LFU and HFU). The NEMA 1 
adapter is optional for larger mode ls as indicated in the drawings.
NOTE: Be sure to use lock washers or other means to ensure screws do not loosen
due to vibration.
5
Check Inverter 
Dimensions
Model
SJ700 -004LFUF2
-007LFUF2
-007HFUF2/HFEF2
-015LFUF2
-015HFUF2/HFEF2
-022LFUF2
-022HFUF2/HFEF2
-037LFUF2
-040HFUF2/HFEF2
Air intake
143 (5.63)
140 (5.51)
62 (2.44)
2 - φ 6 (0.24)
150 (5.91)
130 (5.12)
255 (10.04) 241 (9.49)
6 (0.24)
Exhaust
210 (8.27)
189 (7.44) 2 - φ 7 (0.28)
246 (9.69)
260 (10.24)
203 (7.99)
170 (6.69)
82 (3.23)
13.6 (0.54)
3 places 33 x 28 (1.30 x 1.10 )
Exhaust
Air intake
7 (0.28)
Model
SJ700 -055LFUF2
-055HFUF2/HFEF2
-075LFUF2
-075HFUF2/HFEF2
-110LFUF2
-110HFUF2/HFEF2

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