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...

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...

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...

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...

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...

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...

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...

SJ7002 Inverter
Inverter Mountingand Installation
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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...

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...

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...