Hitachi MICRO-EHV+ - Chapter 1 Introduction; 1.1 Unpacking; 1.2 Instruction Manuals

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Chapter 1 Introduction
Thank you very much for choosing Hitachi Programmable Controller (hereinafter referred to as PLC), MICRO-EHV+
series PLC.
1.1 Unpacking
(1) Installation of a battery
The battery for MICRO-EHV+ series PLC is optional. If you need real time clock function or retentive data memory,
you need to purchase it. Refer to “Chapter 5 Maintenance” for further information.
(2) Initializing of user program
Since initial status of memory devices in the CPU is undefined, OK LED may blink at the first power up. In order to
initialize memory area, execute “Reset origin” in the first use.
1.2 Instruction Manuals
MICRO-EH series expansion units are available with MICRO-EHV+ series PLC as listed in page 2-4.
Besides this application manual, application manuals are available shown in Table 1.1.
Table 1.1 Related manuals to MICRO-EHV+ series PLC (1/2)
Product name
Model
Type
Application manual number
64 Points
EH-A64EDR
AC-powered, DC input×40, Relay output×24
NJI-522*(X)
Expansion unit
EH-D64EDR
DC-powered, DC input×40, Relay output×24
EH-D64EDT
DC-powered, DC input×40, Transistor output×24
EH-D64EDTPS
DC-powered, DC input×40, Transistor output×24 (short circuit protection)
28 Points
EH-A28EDR
AC-powered, DC input×16, Relay output×12
NJI-419*(X)
Expansion unit
EH-D28EDR
DC-powered, DC input×16, Relay output×12
EH-D28EDT
DC-powered, DC input×16, Transistor output×12
EH-D28EDTP
DC-powered, DC input×16, Transistor output×12
EH-D28EDTPS
DC-powered, DC input×16, Transistor output×12 (short circuit protection)
16 Points
EH-D16ED
DC-powered, DC input×16
NJI-467*(X)
Expansion unit
EH-D16ER
DC-powered, Relay output×16
EH-D16ET
DC-powered, Transistor output×16
EH-D16ETPS
DC-powered, Transistor output×16 (short circuit protection)
14 Points
EH-A14EDR
AC-powered, DC input×8, Relay output×6
NJI-350*(X)
Expansion unit
EH-D14EDR
DC-powered, DC input×8, Relay output×6
(MICRO-EH
EH-D14EDT
DC-powered, DC input×8, Transistor output×6
application manual)
EH-D14EDTP
DC-powered, DC input×8, Transistor output×6
EH-D14EDTPS
DC-powered, DC input×8, Transistor output×6 (short circuit protection)
8 Points
EH-D8ED
DC-powered, DC input×8
NJI-467*(X)
Expansion unit
EH-D8ER
DC-powered, Relay output×8
EH-D8ET
DC-powered, Transistor output×8
EH-D8ETPS
DC-powered, Transistor output×8 (short circuit protection)
EH-D8EDR
DC-powered, DC input×4, Relay output×4
EH-D8EDT
DC-powered, DC input×4, Transistor output×4
EH-D8EDTPS
DC-powered, DC input×4, Transistor output×4 (short circuit protection)