Lenze 9400 Manual - Manual (Page 580)

Accessories (overview)
General accessories
Power supply unit
9

578 EDS94SPP101 EN 7.1
Input data
Turn-on time
< 1 s after applying the mains voltage
Transient surge
voltage protection
varistor
Output data
Rated output
voltage U
N
DC 24 V / ± 1 %
Setting range of
the output voltage
DC 22.5 ... 28.5 V
Start of unlimited
capacitive loads
yes
Residual ripple /
switching peaks
(20 MHz)
< 100 mV
SS
with rated values
Can be connected
in parallel
to increase redundancy and power
Resistance to
return supply
DC 35 V
Dimensioning
The control level of the Servo Drives 9400 series is supplied with 24 V DC. To meet the
requirements of typical applications, the 24-V supply has been implemented in a way
allowing internal or external supply. For some components, external supply is absolutely
necessary.
ƒ The additional current requirements for extensions and components added to the
modular structure must be considered.
ƒ A separate 24-V supply is implemented via the connection of the basic device to
operate the control section independently of the power section.
– Communication modules are internally supplied.
– Separate and external supply is absolutely necessary for: safety units.
ƒ The control section of Single Drive controllers can supply itself from the power
section. In this case, there is no external current required for the components and
their modules.
– E.g. for controllers for single drives without communication or without
requirements on their availability (special case)
ƒ Multi Drive controllers and power supply modules always require an external 24-V
supply.
Typical current requirement of the 24-V supply for basic devices and modules or
components (with example):