Siemens MICROMASTER Vector Series - 1. OVERVIEW; 1.3.4 Operation with Long Cables

11
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© Siemens plc 1999© Siemens plc 1999
G85139-H1751-U529-D1G85139-H1751-U529-D1
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4/8/994/8/99
Use a variable AC Use a variable AC
supply. Apply 25% of supply. Apply 25% of
input voltage for 30 input voltage for 30
minutes. minutes.
Increase volts to Increase volts to
50% for a further50% for a further
30 minutes. 30 minutes.
Increase volts to Increase volts to
75% for further 30 75% for further 30
minutes. minutes.
Increase volts to Increase volts to
100% for a 100% for a
further 30 minutes.further 30 minutes.
Now Now
ready ready
for for
run run
signal signal
(preparation (preparation
time time
2 2
hours).hours).
••
3 3
years years
and and
over:over:
As wiAs wi
th 2 th 2
- 3 - 3
years, years,
but but
the stethe ste
ps shps sh
ould be ould be
2 hours 2 hours
(preparation (preparation
time 8 time 8
hours).hours).
1.3.4 1.3.4
Operation Operation
with Long with Long
CablesCables
Motor cable lengths vary depending on type of cable, power rating and voltage rating - and in some cases canMotor cable lengths vary depending on type of cable, power rating and voltage rating - and in some cases can
be as long as 200m without the need for additional chokes. be as long as 200m without the need for additional chokes.
Refer to DA64 catalogue for further details.Refer to DA64 catalogue for further details.
In any case, alIn any case, al
l inverters will operate at full l inverters will operate at full
specification with cable lespecification with cable le
ngths up to ngths up to
25m for screened cable or25m for screened cable or
50m for unscreened cables.50m for unscreened cables.