2-16
Application Manual CDA3000
2 Inverter module CDA3000
Figure 2.4 Removal of isolation when using the analog inputs with the digital
function
If more digital inputs and outputs are required than are present on the
inverter module, we recommend using user module UM-8I4O. It ensures
safe operation of the CDA3000 inverter module with no disturbance of the
analog signals. Safe operation based on burst immunity to EN 61000-4-4
is not affected by connection of the analog and digital ground. The only
effect may be on evaluation of the analog input resulting from interference
voltage where long cables are attached to the digital outputs and inputs.
A bridge is only required
when the internal 24 V is
used.
X2 Function
1 Reference voltage 10V, 10mA
2 ISA00, as dig. input
3 ISA01, as dig. input
4 Analog ground
5 OSA00
6
Auxiliary voltage 24 V,
max. 200 mA
7
13 Auxiliary voltage 24 V
14 Digital ground
15
16
17 Digital ground
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