HRX-OM- T002
Chapter 3 Transport and Setting Up
3.3
Installation
HRS090 Series
3-12
3.3.2
Electrical wiring
Do not modify the intenal electrical wiring of the product. Incorrect
wiring may cause electrical shock or fire. Also, modifing the internal
wiring will void the product’s warranty.
NEVER connect the ground to water line, gas pipe or lightening
conductor.
The installation of electrical equipment and wiring work should be
performed only by personnel with sufficient knowledge and
experience.
Be sure to shut off the user’s power supply. Wiring with the
product energized is strictly prohibited.
The wiring must be conducted using cables complying with “Table
” and firmly and secured to the product to prevent the external
force of cables being applied to the terminals. Incomplete wiring or
improper securing of wiring may cause electrical shock, excessive
heat and fire.
Ensure a stable power supply with no voltage surges.
Ensure that an Earth Leakage Breaker is used in the power supply
of the product. See “Table 3-4”.
Use a power supply suitable for the specifications of the product.
Be sure to connect the ground connection.
Ensure that a lock out facility is availble on the power supply.
Each product must have its own separate Earth Leakage Breaker.
Otherwise there can be a risk of electric shock or fire.
Ensure that no harmonics are superimposed at power supply.
(Do not use inverter etc.)
Supply a steady power supply which is not affected by surges or
distortion. In particular, if the voltage rate of increase (dv/dt) at
zero crossing exceeds 40V/200μsec, it may cause malfunction.
V
dV
dt
dt
= Voltage ratio
on zero-cross point
dV
t
Voltage rise %
Time
Voltag
e
