12
AC30 series General Purpose I/O Option
Analogue Inputs (7004-01-00 only)
The 7004-01-00 offers three identical analogue input ports on terminal
X21.
Terminal
Name
Range
Description
X21
01
AN 0V
0V
Analogue signal reference
02 ANIN11 -10V to +10V
Analogue input 11
(default = unassigned)
03 ANIN12 -10V to +10V
Analogue input 12
(default = unassigned)
04 ANIN13 -10V to +10V
Analogue input 13
(default = unassigned)
Notes:
These analogue input ports are differential. That means that the
signal reference on terminal X21/01 is not directly connected
internally to the drive’s 0V terminal. It is allowed to float relative
to the drive’s 0V, within the limits of the common mode voltage
range (see specification on page 13). This effectively eliminates
ground loops.
Therefore X21/01 must be connected to the user’s 0V signal
reference which should be grounded at an appropriate point in
the system. See the example application on page 14.
If any analogue inputs ANIN11 to ANIN13 are unused, they
should be connected to X21/01 (AN 0V) to prevent invalid
values being reported.
