Hitachi HISCREW 2000 Series - Page 41

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Use rubber bushes at the wiring holes to
protect cables at wiring work inside the
starter. If not protected, cables touch a steel
plate at the wiring cable hole in the starter
panel by a slight vibration during operation.
This may damage the cable cover during
long time use and result short circuit.
CAUTION
7.6.4 Connecting a ground cable
Use Ground Terminal which is on the lower left
side of the starter panel. Adopt Grounding Resis-
tance according to the following table.
7. INSTRUCTIONS FOR INSTALLATION [Instructions on Electrical Wiring]
200 V class
400 V class
Power Source Voltage Grounding Resistance Value
Lessthan100  Ω(TypeDGrounding)
Lessthan10
 Ω(TypeCGrounding)
7.6.5 In case of Remote Operation
In case the compressor is controlled for its start
and stop by the remote operation, it is required to
connect signal lines from remote place to the ter-
minal board inside the starter panel. See the fig-
ure “TB-2 terminal part” in the wiring diagram in
pages 40 through 43.
To permanently enable a remote operation, access
to the DIP switch SW1 located on the PCB in the
starter/control box, and place its No. 4 in ON posi-
tion. For further information on a remote opera-
tion, see page 13.
One dry contact for each of operation and shut-
down is prepared at the “a (normal open)” contact.
Rated current is AC200V 3A.
Use a ground cable of 22 mm
2
or more.
Only pulse signal of 0.5 second or more for Start/Stop
Signal can actually control the compressor at remote
operation.
If such signal from remote place is a level signal (Make
Contact), following failures can happen:
(1) The unit automatically starts operation by setting
the remote operation switch if start/stop is not can-
celed. (Operation by other than intentional action.)
(2) When shutdown happens, the unit will start again
by pressing the RESET button on the instrument
panel if the operation signal by remote control is not
canceled.
(3) Even though manipulation for starting the unit is
tried at the site, the unit can not start without Opera-
tion Signal at REMOTE given. (No independent op-
erative manipulation cannot be achieved at the
site.)
(4) Despite the Stop operation at the site, the unit does
not stop if REMOTE Operation and Stop Signal are
not cancelled. (The unit stops while pressing the
STOP button, and starts again when the button is
released.)
IMPORTANT
7.6.3 Connecting the POWER
Take the starter cover off and connect wires as
the following figure.
Supply connect must not be obstructive to the dis-
assembling work of the enclosure.
All wiring inside the compressor is completed.
(Refer to pages 40 through 43 for wiring diagram.)
Rubber bush
Terminal Board
Enclosure Panel
Enclosure
Panel
Ground
Terminal
Starter/Control Box
Cover