Lenze i700 Manual - Manual (Page 29)

Technical data
Rated data
External supply voltage 24 V
4
l
29 EDS700ACBA EN 4.0
4.2 Rated data
4.2.1 External supply voltage 24 V
The control electronics of the devices must be supplied from an external 24 V voltage
source. In order to ensure that the control electronics will still work during mains failure (on
the power side), the 24 V supply should be independent of this system, if possible, e.g. by
means of a separate system, backup supply via battery, or DC supply.
The supply voltage terminal is designed to be wired from one device to another
(loop−through connection). The number of devices to be supplied by loop−through is
limited by the maximum current of the terminal.
Requirements for the 24 V voltage supply:
Electrical data
Rated voltage 24 V In accordance with
IEC 61131−2
Voltage range 19.2 ... 28.8 V
Residual ripple Max. ± 5 %
Safe separation SELV or PELV
Looping through Max. 16 A with 2.5 mm 2
Max. 10 A with 1.5 mm 2
Cable protection Circuit breaker with tripping characteristic B or C
Standard blade−type fuses £ 20 A, ³ 30 V
The 24 V voltage source must at least provide the total current of all devices supplied.
The increased current I
max24
is required when the internal fans are connected. It may take
up to 0.5 s until the fans have accelerated.
The 24 V voltage source must be able to also provide the required power in the case of
undervoltage.