Commissioning - Vacon FI9 User Manual

96 • vacon
8.

COMMISSIONING

8.1 Safety
Before commissioning, note the following directions and warnings:
WARNING
HOT SURFACE
8.2 Commissioning the inverter
1
Read carefully the safety instructions in Chapter 1 and above and follow them.
2
After the installation, make sure that:
- both the inverter and the motor are grounded
- the DC supply and motor cables comply with the requirements given in Chapter 6.1.1.1.
the control cables are located as far as possible from the power cables (see Chapter
-
6.1.1.8, step 2) and the shields of the shielded cables are connected to protective
earth
the common inputs of digital input groups are connected to +24V or ground of the I/O
-
terminal or the external supply.
3
Check the quality and quantity of cooling air (See Chapter 5.2 and Table 5-1).
4
Check the inside of the inverter for condensation.
5
Check that all Start/Stop switches connected to the I/O terminals are in Stop position.
6
Connect the inverter to DC supply.
8
Internal components and circuit boards of the inverter (except for the
1
galvanically isolated I/O terminals) are live when Vacon NX is connected
to mains potential. Coming into contact with this voltage is extremely
dangerous and may cause death or severe injury.
The motor terminals U, V, W and the DC-, DC+ terminals are live when
2
Vacon NX inverter is connected to DC supply, even if the motor is not
running.
The control I/O-terminals are isolated from the mains potential.
3
However, the relay outputs and other I/O-terminals may have a
dangerous control voltage present even when Vacon NX is disconnected
from DC supply.
Do not make any connections when the inverter is connected to the DC
4
supply.
After having disconnected the inverter, wait until the fan stops and the
5
indicators on the keypad go out (if no keypad is attached see the indicator
through the keypad base). Wait 5 more minutes before doing any work on
Vacon NX connections. Do not open the cover before the time has
expired.
Before connecting the inverter to DC supply make sure that the Vacon NX
6
front cover is closed.
When running, the side of inverter FR8 is burning hot. Do not touch it with
7
bare hands!
. The wires may not touch the electrical components of the inverter.
commissioning
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