Advertisement
English
English
Figure 1.2.3: Wiring guidelines to minimise effects of EMI MICROMASTER Vector Frame Size C
Figure 1.2.3: Wiring guidelines to minimise effects of EMI MICROMASTER Vector Frame Size C
On no account must safety regulations be
On no account must safety regulations be compromised when installing inverters!
1.3 Electrical Installation - General Notes
1.3 Electrical Installation - General Notes
1.3.1 Operation with
1.3.1
Operation with Unearthed
The MICROMASTER Vector will operate from unearthed supplies and will continue to operate if an input
The MICROMASTER Vector will operate from unearthed supplies and will continue to operate if an input
phase is shorted to earth. If an output phase is shorted to earth, the MICROMASTER Vector will trip and
phase is shorted to earth. If an output phase is shorted to earth, the MICROMASTER Vector will trip and
indicate F002.
indicate F002.
Note: M IDIMASTER
Note:
M IDIMASTER Vector inverters will operate from unearthed supplies
Vector inverters will operate from unearthed supplies provided that the switching
frequency is set to 2kHz (P076 = 6 or 7).
frequency is set to 2kHz (P076 = 6 or 7).
1.3.2 Operation with
1.3.2
Operation with Residual Curre
The MICROMASTER and MIDIMASTER Vector
The MICROMASTER and MIDIMASTER Vector inverters will operate without nuisance tripping with
(also called ELCBs or RCCBs) fitted to the input providing:
(also called ELCBs or RCCBs) fitted to the input providing:
• • A A type
type B B RCD
RCD is is used.
used.
• • The trip
The trip limit
limit of of the
the RCD
RCD is is 300mA.
• • The
The neutral
neutral of of the
the supply
supply is is earthed.
• • Only
Only one inv
one inverter is
erter is supplied
• • The output
The output cables are
cables are less than
1.3.3
1.3.3 Installation after
Installation after a Period of
It is necessary to reform the capacitors in the inverter if the unit has been stored for a prolonged period:
It is necessary to reform the capacitors in the inverter if the unit has been stored for a prolonged period:
• •
Period of of storage
Period
storage 1 1 year
No reforming
No
reforming is is required.
required.
• •
1 1 - - 2 2 years
years old:
old:
Apply
Apply power
power to to the
the inverter
• •
2 2 - - 3 3 years
years old:
old:
G85139-H1751-U529-D1
G85139-H1751-U529-D1
4/8/99
4/8/99
Unearthed (IT) Supplies
(IT) Supplies
Residual Current Device
nt Device (RCD)
300mA.
earthed.
supplied from each
from each RCD.
RCD.
less than 50m (screened
50m (screened ) or
a Period of Storage
Storage
year old
old or or less:
less:
inverter one
one hour
hour before
before giving
MAINS POWER INPUT
MAINS POWER INPUT
FOOTPRINT FILTER
FOOTPRINT FILTER
METAL BACK-PLATE
METAL BACK-PLATE
Fix motor and control cable screen
Fix motor and control cable screen
securely to metal back plate using
securely to metal back plate using
suitable clips.
suitable clips.
compromised when installing inverters!
(RCD)
inverters will operate without nuisance tripping with an RCD
) or 100m (unscreened).
100m (unscreened).
giving the
the run
run command
command (preparation tim
10 10
1. OVERVIEW
1. OVERVIEW
provided that the switching
(preparation time e 1 1 hour).
hour).
an RCD
© Siemens plc 1999
© Siemens plc 1999
Advertisement
