Hitachi SJ Series - Page 86

7-31
Chapter 7
Wire Connection and Optional Devices
7.7.4 Wiring Portion Above Control Circuit
・Do not short between the analog power
supply H and L terminals, power supply
P+ and P- terminals, P24 and P-
terminals, P+ and CM1 terminals, and
P24 and CM1 terminals.
・Otherwise, the inverter may fail.
Failure
Power supply
24V terminal
External 24V
terminal
P+
P24
P-
FM
Digital output
RP
SN
SP
SN
SP
CM1
ED-
ED+
Modbus communication
STO confirmation
terminal
Ao2
Ao1
Analog input/output
H Ai1
Ai2
Ai3
L L TH-
TH+
External thermistor
terminal
Control circuit terminal area
Analog input terminal
(factory default state)
The corresponding
switches are as follows.
・Ai1 (voltage input): SW1
・Ai2 (current input): SW2
Analog output terminal
(factory default state)
The corresponding switches
are as follows.
・Ao1 (voltage output): SW3
・Ao2 (current output): SW4
Prohibited
Connection of STO terminal
When shipped from the factory,
wiring is performed so that STO
terminal is disabled.
STO terminal
P24S
STC
CMS
ST1
ST2
STC