Vacon 20 CP, Installation, Technical And Maintenance Manual

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7
vacon • 73 Technical data
7.3 VACON
®
20 CP - technical data
Mains connection
Input voltage U
in
3AC 208…240V
1AC 208…240V
3AC 380…480V
Input voltage tolerance -15%…+10% continuously
Input frequency 50/60 Hz
Input frequency
tolerance
45…66 Hz
Protection class I
Connection to mains Once per minute or less
Starting delay 4 s
Supply network
IT and TN-networks (cannot be used with cor-
ner earthed networks)
Short-circuit current Maximum short-circuit current has to be <50kA
DC connection
Available as standard in MS2 single-phase
frames and MS3
Motor connection
Output voltage
0…U
in
Rated output current
I
N
: Enclosure temperature max. +70°C.
See Table 30, Table 31 and Table 32.
Overload output cur-
rent
1.5 x I
N
(1 min/10 min)
Starting current
I
S
for 2 s every 20 s (I
S
= 2.0 * I
N
)
Output frequency 0…320 Hz
Frequency resolution 0.01 Hz
Protection class I
Motor characteristics
AC squirrel cage motors
Permanent magnet motors
Cable type Screened motor cable
Cable maximum length 30 m
Control
characteristics
Switching frequency
Programmable 2…16 kHz;
Default 6 kHz.
Automatic switching frequency derating in case
of overheating
Frequency reference:
Analogue input
Panel reference
Resolution ±0.05% (11-bit), accuracy ±1%
Resolution 0.01 Hz
Field weakening point 8…320 Hz
Acceleration time 0.1…3000 sec
Deceleration time 0.1…3000 sec
Braking
Brake chopper standard in all three-phase
frames. External brake resistor optional.
Control
connections
See Chapter 5.