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Chapter 6 - Specific information
for CPVS 200 - 250
Refer also to the chapters concerning the standard machine.
"CPVS" machines are compliant with the Electromagnetic
compatibility in industrial environments Standards 50081-2 and
50082-2
A - Description (cf Chap. 1)
Standard equipement
A electronic frequency adjusting device replaces the star-delta
starter.
B - Safety
For your safety, please respect the instructions carrying the
warning symbols as given below:
SAFETY RULES
The safety rules require:
The presence of an earth socket
•
The existence of a manual switch cutting-off the three
•
phases that should be placed visibly near the CPVS
It is necessary to cut out the electric current before any
•
intervention on the machine (except drainage under pres-
sure).
= Dangerous voltage
= Attention
ELECTRICAL INSTALLATIONS MUST ONLY BE
CARRIED OUT BY A SPECIALISED AND COMPETENT
TECHNICIANS
1 - Warning
The internal components and the plates (except for
the electrically insulated I/O terminals) are at the
voltage of the mains power supply when the inverters
1
are connected to the mains power supply. This voltage
is extremely dangerous and it can cause serious injury
or even death in the event of involuntary contact.
When the inverters are connected to the mains power
supply, connection terminals U, V, and W on the
2
motor, together with the +/- terminals on the braking
resistor, are live even if the motor is not running.
The I/O control terminals are insulated from the mains
power supply, but the relay outputs may nonetheless
be live even if the inverters are not connected. This is
3
also the case for the other I/O control terminals, even
if switch X4 is in the OFF position (Stop).
Chicago Pneumatic Compressors
62 305 799 65
The inverters feature a capacitor charging circuit with
a thermal cut-off. It is thus essential to wait for at least
5 minutes between two connecting operations. Failure
4
to comply with this instruction can result in damage
to the contactor and the heat resistor on the charging
circuit.
2 - Safety instructions
No connection work is allowed when the inverters is
1
under power.
No measurement work is allowed on the inverters when
2
it is under power.
To undertake any work on the inverters, it is necessary
to disconnect the equipment from the mains. Wait for
the internal ventilation to stop and the indicators to be
3
turned off. Then, wait 5 minutes before opening the
cover.
No voltage or insulation verification test is allowed
on the inverters components.
4
Disconnect the cables from the motor and the inverters
5
before taking measurements on them.
Do not touch the integrated circuits, the electrostatic
6
discharges may damage them.
Before connecting the inverters, make sure that its
7
covers is correctly closed.
Make sure that no compensation capacitor of cosine
8
phi is connected to the motor cable.
C - Installation
The "CPVS" must be installed away from a transformer
or autotransformer.
(see Chapter 2 and 3).
The fuses for the built-in section switch are defined as follows
Main voltage 460 V / 3 / 60Hz
Nominal current
Power supply cable H 07
Fuse protection
( Type J )
ATTENTION
•
Motors and drives can only be guaranteed where the supply
voltage "460 V" does not exceed the rated voltage by more
than 10%.
The connection of the power supply to the section switch
•
(if present) requires the use of properly insulated terminals.
200
250
270A
300A
500Kcmil
600Kcmil
300A
350A
11/2008
Page 17
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