– 17 –
– 16 –
4. Wiring diagram
Considerations for wiring
• Use a terminal block or socket for connection. Do not solder the
lead to the pin.
• When using a transformer or variable transformer, its capacity must
be larger than the rated current of the product by the factor of 2 or
more, to assure reliable operation.
• If the input lead is longer than 1 m (e.g. lead from a tachometer
generator), seal it or replace it with shielded cable to prevent induc-
tion of noises.
<Precautions>
• Don't ground the shielding.
• The length of the wiring between the speed controller and the motor
should be 3 m or shorter.
• Wiring from the tachometer generator (TG) carries current at a high
voltage: Risk of electrical shock.
• When using a cooling fan motor or a motor with thermal protector,
also see p. 26.
3. Installation
Installing method
The product can be mounted in either of the following two ways but
must be installed inside the control board.
Orientation of the product in the control board is not limited.
Caution
Special care is always given to our products during manufacturing
and delivery to keep quality from deteriorating. Customer is also
required to keep the quality by designing and providing failsafe and
safety operating field and condition so that external noise, electro-
static charge, wrong wiring, wrong parts are prevented or eliminated.
In rare instances, the product may give off fume like a smoke of a
cigarette if it is in a specific malfunctioning state. Precaution against
possible fumes should be taken into consideration when the product
is used in a clean room, etc.
DON'T
Don't turn the shaft of speed
control potentiometer using a
tool with the knob removed.
High voltage is
applied to the
potentiometer:
Danger!
DIN rail
Terminal block
• Using miniature DIN terminal block
(sold deparately: see pp. 32 and 33)
For further information,
consult the manufacturer
of terminal block.
Mounting plate
Flush mounting frame
• Using flush mounting frame
(sold separately: see p. 34)
