Publication 23B-IN001G
Chapter 2
Control Wiring Overview
Chapter Objectives
This chapter describes the control and signal wiring connection options.
Control Wiring Overview
Refer to the PowerFlex 40 User Manual for additional detailed information
about control and signal wiring.
The Control I/O Terminal Block (TB1) and Relay Terminal Block (TB2)
located on the drive Main Control Board provide terminals for interfacing
customer supplied control inputs and outputs. All analog and discrete
control wiring will be made at these terminals.
To connect control and signal wiring to the drive package:
❏ 1. Wire the control and signal leads by routing them according to the drive
option type. Note that you must punch openings in the option cabinet of
the desired conduit size, following NEC and all applicable local codes
and standards. I/O terminal block specifications are listed in Table 2.A
.
Control and signal wires should be separated from power wires by at
least 0.3 meters (1 foot).
❏ 2. Connect the control and signal wiring to the I/O terminals located on the
drive.
❏ 3. Tighten the I/O terminals to the proper torque according to drive type as
shown in Table 2.A
.
Table 2.A I/O Terminal Block Specifications
For information on … See page …
Control Wiring Overview
2-1
Schematic Drawings 2-2
Voltage Rating Maximum Wire Size
(1)
(1)
Maximum/minimum sizes that the terminal block will accept - these are not recommendations.
Minimum Wire Size Torque
208-460V AC 1.3 mm
2
(16 AWG) 0.13 mm
2
(26 AWG) 0.5-0.8 N-m (4.4-7 lb.-in.)
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