Technical data

15
• DOK-DIAX02-DDC01******-PRJ1-EN-E1,44 • 01.97
3. Electrical Connections - Installation Guidelines
3.2. Power Connections
The DDC 1.2 drives can be connected to three-phase mains rated at AC 220V
(+ 15 % -10%) or AC 230V (+10 / -15%).
50 ... 60 Hz
Connection voltage
Frequency
To operate the DDC 1.2 in residential and light industrial areas, it may
be necessary to install an rf suppression filter in the mains supply
line so that the limits for the emission of interference (radio interference
suppression) are not exceeded.
The connected load must be calculated when determining supply line diameters,
fuses and matching transformers.
S
AN
= connected load in kVA
M
eff
= effective motor torque in Nm
n
AV
= average motor speed in min-1
F = factor for motor and drive efficiency and current form
F = 1.75 with a three-phase connection
F = 2.1 with a single-phase connection
0.125 = power consumption of the control unit voltage source in kVA
Connected load
S
AN
=
M
eff
· n
AV
9550
· F + 0,125kVA
The average motor speed for feed functions in transfer facilities is
generally no greater than 25% of the rapid traverse speed.
In some cases, it may be necessary to precisely calculate average
motor speed.