Residual Risk - Hitachi P1-00080-L Basic Manual

Chapter 2

2.12 Residual risk

Parts subject to residual risk
Please check for any residual risk upon completion of the
installation before power on.
■Residual risk checklist No.
No. Name of part
Main circuit
(A)
terminal block
(B) Heat sink
Input/output
(C)
terminal block
Unspecified
‐
parts
Residual risk checklist
Operational
No. Work
phase
1 Installation Installation
2 Installation Installation
3 Installation Installation
4 Installation Installation
5 Installation Installation
6 Installation Installation
7 Installation Installation
Installation
8 Wiring
Maintenance
Installation
9 Wiring
Maintenance
Use Wiring
10
Maintenance Inspection
Use Wiring
11
Maintenance Inspection

The installation, wiring and setting work must be
conducted by qualified engineers.
DANGER
WARNING
8,10
4
11,12
9
Residual
Part Details of harm or damage
risk
(B) CAUTION Damage due to rough transportation.
Shortened lifetime of parts due to the use
in places where the product is exposed to
‐ CAUTION
direct sunlight or the temperature is not
within the specified range.
Short-circuit failure due to the use in
places where the temperature is not
‐ CAUTION
within the specified range or
condensation occurs.
A cooling fan reaching a high temperature
(B) DANGER exceeding 150 °C causes a fire on a
flammable wall.
Damage to parts due to entry of dust and
‐ CAUTION
corrosive gases.
Shortened lifetime of parts due to
‐ CAUTION reduced cooling capability by placing the
product horizontally.
A cooling fan failed due to waterdrops or
‐ CAUTION oil mist when the heat sink is positioned
outside.
A fire is caused inside by an arc due to
(A) DANGER
screws loosened by vibrations.
A fire from flammable materials caused
‐ DANGER by an arc due to screws loosened by
vibrations.
Electric shock by touching a high voltage
(A) DANGER
part with the cover removed.
Electric shock by touching a high voltage
(C) DANGER
part with a tool with the cover removed.
(C)
CAUTION
1
2,3,5,6,7
Do not let the product fall. Do not apply
force when handing the cover and
operator keypad.
Verify that the ambient temperature is
within the specified range throughout the
year by means of cooling or ventilation.
Verify that the ambient temperature is
within the specified range throughout the
year by means of cooling or ventilation.
Install the product in places where no
condensation occurs.
Install the product on a non-flammable
metal wall.
Install the product inside a totally
enclosed panel.
Install the product vertically.
With the heat sink positioned outside,
install the product in places free from
waterdrops and oil mist.
Regularly check the tightening of screws.
Regularly check the tightening of screws.
Do not place flammable materials near
the product.
Do not open the cover when the power is
on. Wait for 10 minutes or more after the
power is off, and then confirm that the
voltage between P and N is significantly
less than 45Vdc to start the work.
Do not open the cover when the power is
on. Wait for 10 minutes or more after the
power is off, and then confirm that the
voltage between P and N is significantly
less than 45Vdc to start the work.
2-23
Installation and Wiring
(A)
Preventive measures
(B)
✓
□
□
□
□
□
□
□
□
□
□
□