Lenze E84DGFCA - Manual (Page 23)

Lenze · Decentralised frequency inverter 8400 motec (AS-Interface option) · EDS84DMOTASI EN 4.0 - 09/2013
23
Installation
Electrical installation
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5.2.3 Voltage supply
• The Communication Unit is supplied with voltage via the AS-i bus cable.
• Access to parameters of a device that is disconnected from the mains is not possible.
• Permissible voltage (DC) / max. current:
• U = 29.5 ... 31.6 V (according to AS-i specification)
• I
max
= 400 mA
Low-voltage supply via the AS-i-bus cable
In case of low-voltage supply via the AS-i bus cable, communication with the slaves is still possible
if no mains voltage is available.
• A previous mains connection (400 V) is not required.
• The digital inputs DI1 ... DI5, RFR and the analog input can still be evaluated.
• The AS-i input ports DI0 ... DI3 represent the digital inputs DI1 ... DI4 (see
AS-i concept of the
Communication Unit ( 33) ). The current status of these inputs can be called.
• All digital input and output data which can be selected by the inverter are deleted or invalid..
• External sensors are also supplied via the AS-i bus cable.
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"Inverter Drives 8400 motec" hardware manual
Here you can find detailed information on how to wire the Communication Unit.