Hitachi Sj7002 Owners Manual

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CAUTION: Do not insert leading power factor capa citors or surge absorbers between the 
output terminals of the inverter and motor. 
CAUTION:  Be sure to connect the groun ding terminal to earth ground.
CAUTION: When inspecting the unit, be  sure to wait 10 minutes after tuning OFF the power 
supply before opening the cover.
CAUTION: SUPPRESSION FOR NOISE INTE RFERENCE FROM INVERTER
The inverter uses many semiconductor switchin g elements such as transistors and IGBTs. 
Thus, a radio receiver or...

SJ7002 Inverterxi
CAUTION: MOTOR TERMINAL VOLTAGE SURGE SUPPRESSION FILTER 
(For 400 V CLASS Inverters)
In a system using an inverter with the voltage control PWM system, a voltage surge caused by 
the cable constants such as the cable length (especially when the distance between the motor 
and inverter is 10 m or more) and cabling  method may occur at the motor terminals. A 
dedicated filter of the 400 V class for suppressing this voltage su rge is available. Be sure to 
install a filter in this...

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UL® Cautions, Warnings, and Instructions
Wiring Warnings 
for Electrical 
Practices and 
Wire SizesThe Cautions, Warnings, and instructions in this section summarize the procedures necessary to 
ensure an inverter installation comp lies with Underwriters Laboratories® guidelines.
The SJ700
2 series inverter family is an open-type  and/or Enclosed Type 1 (when employing 
accessory Type 1 Ch assis Kit) AC inverter with 3-phase  input and 3-phase output. The inverter 
are intended for use in an...

SJ7002 Inverterxiii
Terminal Tighten-
ing Torque and 
Wire SizeThe wire size range and tightening torque for field wiring te rminals are presented in the table 
below.
Input 
Vo l t a g eMotor 
Output200V
Inverter ModelWire Size Range (AWG)To r q u e
HPkWft-lbs(N-m)
200V 0.5 0.4 SJ700–004LFU2 14 (stranded only) 1.3 1.8
1 0.75 SJ700–007LFU2 14 (stranded only) 1.3 1.8
2 1.5 SJ700–015LFU2 14 (stranded only) 1.3 1.8
3 2.2 SJ700–022LFU2 14 (stranded only) 1.3 1.8
5 3.7 SJ700–037LFU2 10 (stranded only) 1.3...

xiv
400V
100 75 SJ700–750HFU2/E(All)1/0  || 1/014.8 20.0
125 90 SJ700–900HFU2/E (All)1/0  || 1/014.8 20.0
150 110 SJ700–1100HFU2/E (All) 3/0  || 3/025.8 35.0
150 132 SJ700–1320HFE2, SJ700–1500HFU2 (All)
3/0  || 3/025.8 35.0
250 185 SJ700–1850HFU2/E [R, S, T, U, V, W] 250 kcmil x 255.3 75.0
[P, PD, N] 300 kcmil x 26.0 8.1
[P, N] Braking unit 155.3 75.0
Earth GND 250 kcmil28.9 39.2
400 315 SJ700–3150HFU2/E [R, S, T, U, V, W] 400 kcmil x 232.5 44.0
[P, PD, N] 500 kcmil x 214.8 20
[P, N] Braking unit 250...

SJ7002 Inverterxv
Fuse and Circuit 
Breaker SizesThe inverter’s input power wiring must include UL Listed, dual-element, 600V fuses, or UL 
Listed, inverse-time, 600V circuit breakers.
Input 
Vo l t a g eMotor 
Output200V
Inverter ModelAmpere Rating  for Fuse or BreakerInput 
Vo l t a g eMotor 
Output400V
Inverter ModelAmpere Rating  for Fuse or Breaker
HPkWHPkW
200V 0.5 0.4 SJ700–004LFU2 5A
400V
—— —
—
1 0.75 SJ700–007LFU2 10A 1 0.75 SJ700–007HFU2/E5A
2 1.5 SJ700–015LFU2 15A 2 1.5 SJ700–015HFU2/E10A
3...

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Wire Connectors
WARNING: Field wiring connections must 
be made by a UL Listed and CSA Certified 
ring lug terminal conn ector sized for the 
wire gauge being used. The connector must 
be fixed using the crimping tool specified by 
the connector manufacturer.
Motor Overload 
ProtectionHitachi SJ7002 inverters provide solid state motor ove rload protection, which depends on the 
proper setting of the following parameters:
 B012 “electronic overload protection”
 B212 “electronic overload protection,...

xviiSJ7002 Inverter
Safety Messages
Hazardous High Voltage                                                                                             i
General Precautions - Read These First!                                                                    ii
Index to Warnings and Cautions in This Manual                                                        iv
General Warnings and Cautions                                                                                ix
UL® Cautions, Warnings, and...

xviii
Chapter 5: Inverter System Accessories
Introduction                                                                                                             5–2
Component Descriptions                                                                                        5–3
Dynamic Braking                                                                                                    5–6
Chapter 6: Troubleshooting and Maintenance
Troubleshooting...

SJ7002 Inverterxix
Revisions
Revision History Table 
No.Revision CommentsDate of IssueOperation 
Manual No.
Initial release of manual NB206X August 2008 NB206X
A Add new inverter models from -004xxx to 037xxx, and models  -750Hxx to -4000Hxx
Numerous additions and corrections throughout manual October 2009 NB206XA

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