Rockwell Automation Liqui-Flo AC Power Modules - Manual (Page 38)

3-8 LiquiFlo AC Power Modules, Hardware Reference Version 6.4
3.2.2.4 Recommended Motor Lead Lengths
Motor lead lengths can total up to 76 meters (250 feet).
3.2.2.5 Recommended Serial Communication Cable Lengths
Connector J8 on the Regulator boards is an RS-232 serial communication port. This
connector allows the LiquiFlo drive to communicate with external devices such as a
personal computer using RS-232 protocol. See table A.5.
Two RS-232 cables are available from Reliance Electric:
• A 3 meter (10 feet) D-shell 9-pin to 9-pin cable (M/N 2CA3000)
• A 0.3 meter (1 foot) D-shell 9-pin to 25-pin adaptor cable (M/N 2CA3001).
User-constructed cables can be up to 15 meters (50 feet) in length.
Note that for communication between a LiquiFlo drive and a personal computer, the
Control and Configuration Software must also be used. Refer to instruction manual
D2-3348 for more information about the CS3000 software.
The Regulator boards have one set of RS-232 transmit/receive lines. These lines can
be accessed by only one device at a time: connector J8, the RS-232 terminals (1-3)
on the terminal strip, or an Operator Interface Module (OIM).
3.2.3 Selecting Input Line Branch Circuit Fuses
Input line branch circuit protection fuses must be used to protect the input power lines.
See figures 5.1 and 5.2. Recommended fuse values are shown in table 3.7. The input
fuse ratings listed in table 3.7 are applicable for one drive per branch circuit. No other
load may be applied to that fused circuit.
Table 3.6 – Recommended Terminal Strip Wire Sizes
Terminals Wire Size
1 to 31 (Regulator)
41 to 69 (RMI)
20 to 14 AWG, 2 to 0.5 (mm
2
)
!
ATTENTION: Most codes require that upstream branch circuit protection
be provided to protect input power wiring. Install the fuses recommended
in table 3.6. Do not exceed the fuse ratings. Failure to observe this
precaution could result in damage to, or destruction of, the equipment.