3 rs-232 communication port, 4 rmi board connector – Rockwell Automation Liqui-Flo AC Power Modules User Manual
Page 25
About the Drive
2-13
Figure 2.8 – Typical Regulator Board Terminal Strip Connections
2.6.3 RS-232 Communication Port
The Regulator board contains a 9-pin D-shell RS-232 communication port (J8). This
port provides RS-232 communication between the LiquiFlo drive and a personal
computer running the Control and Configuration (CS3000) software. See figure 2.5.
Refer to instruction manual D2-3348 for more information about the CS3000 software.
2.6.4 RMI Board Connector
The flat-ribbon cable connector (J3) on the left side of the Regulator board is a parallel
bus connection port that is used on LiquiFlo drives for the Remote Meter Interface
(RMI) board.
The RMI board provides an extended set of terminal strip inputs and outputs for the
LiquiFlo drive. When the drive control source is the terminal strip (P.000 = rE), the RMI
board can be used to provide additional speed reference selections. The RMI board
also provides an outer PI regulator that is used to adjust trim. An optional adjustable
torque (vector) or current (V/Hz) limit is available using the RMI board's analog or
frequency input. See section 2.7 for a more detailed description of the RMI board.
Refer to section 7.4 for a detailed description of the RMI terminal strip signals, and
how to wire the RMI board.
The J3 connector can also be used to provide a means of attaching optional boards
such as the DeviceNet
™ Option board, the AutoMax™ Network Option board, or
similar boards to the LiquiFlo drive. Note that you must first remove the RMI board
before a communication board can be added to the LiquiFlo drive.
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8
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11
14
13
15
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16
18
22
20
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24
23
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29
27
26
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31
RS-232
Connections
Connections
Encoder
Output
Analog
Reference
Analog Speed
Configurable
Status Relays
Digital Inputs
(Isolated 24 VDC)
Factory
Installed
N.O. Relay Common
N.O. Relay Contact
N.C. Relay C
o
mmon
N.C. Relay C
o
ntact
+24 VDC C
o
mmon
No Connection
+24 VDC C
o
mmon
Start
Stop
Reset
Isolated Refer
ence Vol
tage
VD
C Speed Refer
ence
Ma Speed Refer
ence
Isolated Refer
ence Gnd
+24 V
D
C
Digital Input 8 (
R
e
m
ote/Local)
Digital Input 7 (
R
a
m
p1/Ramp2)
Digital Input 6 (
F
orwar
d/Reverse)
F
u
nc
ti
on
L
o
s
s
Run / Jog
Phase A
+15 V
D
C
RS-
232 Regulator
C
om
m
on
RS-
232 Rx
RS-
232 Tx
Analog Meter
Output
Regulator
C
o
mmon
P
hase B Not
Phase B
P
hase A Not
Regulator
C
o
mmon
Jumper