Hitachi Sj7002 Owners Manual

Phone: 800.894.0412   

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...

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...

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...

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,...

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...

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...

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...

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...

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...