STP-301/451 Series Instruction Manual
6-12
Installation
STP-301/451
Series
6.4.2 How to Connect the Cables
◇ When connecting/disconnecting cables, always power OFF the STP pump (switch
the breaker "OFF").
Failure to do so may result in electric shock or product damage.
◇ With each connector, align the position of the guide key and insert the pin vertically
so as not to bend it.
If the pin is bent, not only may the connector not function normally, but may make
the pins contact each other, resulting in a malfunction.
◇ Lock and securely tighten each connector and screw.
◇ DO NOT apply a voltage to each pin and DO NOT cause any short-circuiting
between pins.
◇ Connect each cable securely. DO NOT place heavy objects on the cables nor bend
them excessively.
Support each cable so as not to apply direct force to the connectors or terminals.
If any problem occurs in cables, connectors or terminals, the STP pump may not
function normally.
1) Connecting the Ground Cable
Connect the ground cable (yellow/green) between the ground terminal of the STP pump and
the ground terminal of the STP control unit.
When the resistance between the ground terminals is lower than 0.1 ohms, it is not
necessary to connect the ground cable after installing the STP pump and the STP control
unit.
◇ First, connect the ground cable. Next, connect other cables.
◇ When the resistance between the ground terminals is over 0.1 ohms, always
connect the ground cable. Failure to do so may result in electric shock.
2) Connecting the STP Connection Cable
Connect the receptacle side of the STP connection cable to the STP connector of the STP
pump and connect the plug side to "P.CONNECTOR CON2" of the STP control unit.
◇ Always use the STP pump and STP control unit of the same model name and serial
number.
If you plan to use units having the same model name but different serial numbers or
to change the length of the STP connection cable, the tuning is required. To
perform the tuning, see Section 9.1, "Tuning". If the units are used without tuning,
they may not operate normally.
If you plan to use the units having different model names, they may not be used
even when the tuning is performed. In the latter case, contact service office.
◇ Use the STP connection cable that has a label affixed
The use of different cables may result in product damage.
To Next Page
Loading...
