Hitachi SJ700D-004L Instruction Manual page 30

Chapter 2
About the emergency stop function
- The emergency stop function shuts off the inverter output (i.e. stops the switching operation of the main circuit
elements) in response to a command from a hardware circuit via an intelligent input terminal without the operation
by internal CPU software.
Note: The emergency stop function does not electrically shut off the inverter but merely stops the switching operation
of the main circuit elements. Therefore, do not touch any terminals of the inverter or any power lines, e.g.,
motor cables. Otherwise, electric shock, injury, or ground fault may result.
- 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 terminals, these are automatically disabled and these terminals are used exclusively for the emergency stop
function.
Terminal [1] function:
This terminal always serves as the a (NO) contact for the reset (RS) signal.
This signal resets the inverter and releases the inverter from the trip due to emergency stop (E37.*).
Terminal [3] function:
This terminal always serves as the b (NC) contact for the emergency stop (EMR) signal.
This signal shuts off the inverter output without the operation by internal CPU software.
This signal makes the inverter trip due to emergency stop (E37.*).
Note: If intelligent input terminal 3 is left unconnected, the cable connected to the terminal is disconnected, or the
signal logic is improper, the inverter trips due to emergency stop (E37.*). If this occurs, check and correct the
wiring and signal logic, and then input the reset (RS) signal.
Only the reset (RS) signal input from intelligent input terminal [1] can release the inverter from tripping due to
emergency stop (E37.*). (The inverter cannot be released from the E37.* status by any operation from the
digital operator.)
- To enable the emergency stop function, set the slide lever of slide switch SW1 to ON. (With the factory setting, slide
switch SW1 is set to OFF to disable the function.)
Note: Before operating slide switch SW1, make sure that the input power supply is off.
Setting of slide switch SW1 setting and function selection for intelligent input terminals [1] and [3]
Setting of slide switch
SW1
Terminal [1] function [C001]
SW1 is OFF. Selectable arbitrarily (*4)
Emergency stop
disabled
Factory setting
(factory setting)
Automatic assignment of functions to intelligent input terminals [1] and [3] and the terminal to which function "18 (RS)" has been
SW1 is ON.
Emergency stop enabled
Fixed function
(*5)
(cannot be
changed)
Selectable arbitrarily (*4)
SW1 is ON (after setting
Setting made
to OFF once).
when SW1 is
Emergency stop
set ON
disabled (*3) (*5)
retained
*1 When function "18 (RS)" is assigned to the input terminal, "a/b (NO/NC)" selection is always "00 (NO)".
*2 When terminal setting "C003" is "64 (EMR)", terminal setting "C013" is always "01 (NC)".
*3 If function "18 (RS)" has been assigned to an intelligent input terminal other than intelligent input terminals [1] and [3] before slide
switch SW1 is set to ON, the input terminal setting for said terminal is automatically changed to "no (no function assigned)" when slide
switch SW1 is set to ON to prevent any duplication of terminal functions. Even if slide switch SW1 is subsequently returned to OFF, the
original function setting for said terminal will not be restored. If necessary, the original function will have to be re-assigned to said
terminal.
Example: If slide switch SW1 is set to ON when function "18 (RS)" has been assigned to input terminal 2 (by terminal setting "C002"),
terminal setting "C002" is changed to "no (no function assigned)," and function "18 (RS)" is assigned to input terminal 1 (by terminal
setting "C001").
Even if slide switch SW1 is subsequently returned to OFF, terminal [2] function "C002" and terminal [1] function "C001" will remain as
"no (no function assigned)" and "18 (RS)," respectively.
(disabled by the factory setting)
Intelligent input terminal [1]
a/b (NO/NC) selection
[C011] (*1)
Selectable arbitrarily (*4)
18 (RS) Factory setting
Fixed function
18 (RS) (cannot be
changed)
Selectable arbitrarily (*4)
Setting made
when SW1 is
18 (RS)
set ON
retained
2-9
Installation and Wiring
Intelligent input terminal [3]
Terminal [3] function [C003]
Selectable arbitrarily (*4)
00 (NO) Factory setting 06 (JG)
assigned (*3)
Fixed function
00 (NO) (cannot be 64 (EMR)
changed)
Selectable arbitrarily (*4)
Released from
00 (NO) emergency
(No function
stop function
assigned)
a/b (NO/NC) selection
[C013] (*1) (*2)
Selectable arbitrarily (*4)
Factory setting 00 (NO)
Fixed function
(cannot be 01 (NC)
changed)
Selectable arbitrarily (*4)
Setting made
no
when SW1 is
01 (NC)
set ON
retained