Rockwell Automation 7000 PowerFlex Medium Voltage AC Drive (B Frame) - ForGe Control - Manual (Page 151)

Rockwell Automation Publication 7000-UM202B-EN-P - June 2014 151
Component Definition and Maintenance Chapter 3
The recommended connection is shown above. The type of shielded cable used is
application specific and is determined by the length of the run, the characteristic
impedance and the frequency content of the signal.
Isolated Process Receiver
These inputs are individually configurable to accept either a -10/0/+10V input
signal or a 4-20 mA signal. When configured for voltage input, each channel has
an input impedance of 75 K Ω. When used as a current loop input, the
transmitter must have a minimum loop compliance of 2V to satisfy the 100 Ω
input impedance. Regardless of input configuration, each input is individually
isolated to ± 100V DC or 70V RMS AC.
Figure 134 - Process Loop Receiver block diagram
The receiver can accept 4-wire transmitters. The figure below shows the
recommended connections. Again, the type of shielded cable used is application
specific as per the transmitter.
Figure 135 - Process Loop Receiver connections
4 ,8 ,1 2
3 , 7, 11
ŀ/#
X 1 U 1
1
s t
I/P p in s
3
rd
I/P p in s
2
n d
I/P p in s
2, 6, 10
1, 5, 9
+
+
-
-
Isolation Amplifier
FPGA
DSP
VPP
GND
Out
RTN
DC
IF M
20
21
19
22
4-Wire Transmitter
User-supplied Power
(Sinking)