Electrical installation
PCD0
26/766 E2
(HB_PCD0 26 766_E2.DOC)
SAIA-Burgess Controls Ltd.
Page 121
Current inputs
The 4 analog inputs are “single ended” inputs, i.e. the negative signal
pole of all inputs is AGND.
The analog potentials (Alx and AGND) are isolated from the supply
(+24 V, 0 V) and from PE.
Observe the following when connecting current sources to analog
inputs:
a) Floating signal sources:
Required potential coupling is already provided by referencing the
input signal potential to AGND.
b) Non-floating signal sources:
If you use different non-floating signal sources make sure that the
signal sources are not shorted between them when connected to
AGND.
