4.3.3. Auxiliary power supply characteristics
The auxiliary power supply must be 24 V with a tolerance of +/-10% and a ripple below 200 mV.
The current absorbed will depend on which and how many modules are used in the system.
The maximum current necessary will be taken from the sum of the voltage required from each of the components.
Place the brakes in the DR2020 chain as close as possible to the DM2020 power supply
The current absorbed by the brake can reach up to 2 Arms and depends on the brake model that the motor uses. The value of 750
mA refers to the brakes of the FASH motors, 100 mm and 115 mm.
Module
Absorbed current (A)
Power supply L50
1,0
Power supply L150
2,0
DR2020 axis
700 mA
Motor brake
750 mA
4.3.3 Thermal dissipation of the accessories
Device
Dissipated power (W)
Networ
��
lter for power supply L50
30
Networ
��
lter for power supply L150
50
Standard brake resistor
370 or 1000 (maximun)
Optional brake resistor
500 maximum
INFORMATION
If possible, the brake resistors should be assembled outside the distribution board, adequately protected from
accidental contact, to avoid having to eliminate the heat they generate in the distribution board
MAR2-E-191
36
k fi
k fi
Tab 4.1 Auxiliary circuits input
CAUTION
Where a dedicated power supply for the motor brake is absent, it is important to ensure that the general auxiliary
power supply system is correctly dimensioned and that the tolerances comply with those required by the brake which is
being controlled
4.3.4.
Connection to the mains
(Section related to the connection of the DM2020 power supply to mains
)
WARNING
The drive must be correctly earthed to prevent injury or death. An insulation transformer must be fitted in
mains networks which are not earthed or earthed asymmetrically
4.3.4.1. Types of mains networks
TN-C network
The type of network shown in th
e fi
��
gure is common in many industrial sites and has the following characteristics:
a)
Direct mains connection (earthing point)
b)
The control unit neutral and earthing of the entire plant are connected to a single connector
:
the PEN
c)
All parts exposed to contact and shielding must be connected to earth
L1
L2
L3
PEN
c
a
b
TRAFO
POWER
CONNECTOR
