Rockwell Automation 1305 AC Drive, Series A and B, Firmware 4.xx-5.xx - Manual (Page 33)

Chapter 2 – Installation/Wiring
2-17
DRIVE OPERATION WITHOUT A
HUMAN INTERFACE MODULE (HIM)
Bulletin 1305 drives are functional without the use of the
Human Interface Module (HIM). All control functions can be
performed from the control terminal block (TB2). See Figure
2.5 for control descriptions. Programming must be performed
using a HIM or PLC Remote I/O function. If operating without
a HIM, you must use an external Frequency Source on TB2.
Frequency Source
To control frequency from the control terminal block (TB2) an
input is required to SW3 at TB2. The input to SW3 changes the
frequency source from [Freq Select 1] to [Freq Select 2]. The
factory default setting for [Freq Select 2] is the “Remote Pot”.
If a 0 – 10 Volt or 4 – 20mA frequency source is required, then
the [Freq Select 1] or [Freq Select 2] parameters must be
programmed to select that source. These parameters can be
programmed using the optional Human Interface Module or
through serial communications when using an optional Bulletin
1203 Communication Module. See Appendix C for catalog
numbers of these accessories.
Refer to Chapter 5 for the factory default settings for all
parameters. Special attention should be paid to Table 5.A on
page 5-29 and Table 5.B on page 5-30. These tables
demonstrate what frequency source and accel and decel
parameters can be selected based on the inputs to SW1, SW2
and SW3 at TB2.
CONTROL WIRING
IMPORTANT: All common terminals are tied together within
the drive and internally connected to chassis ground.
Recommended practice is to run all signal wiring in separate
steel conduit.
ATTENTION: Drive can be permanently
damaged if any EXTERNAL control voltage is
applied to terminals 5 – 8 and 11 – 18. DO NOT
connect drive Common terminals (TB2) to
ground. DO NOT switch these inputs using
non-isolated TTL type circuits. Use dry relay
contacts to switch signal inputs to Common. Only
isolated 4-20mA sources are recommended. There
must be no ground potential difference between
source and drive.
The factory default control wire scheme is ‘‘3 Wire” control.
The [Input Mode] parameter can be used to program the drive
to operate using a two wire ‘‘Run Forward/Run Reverse”
control wire scheme. Refer to Chapter 4, Step 10 for
programming instructions. Figures 2.7 through 2.10 show the
wiring diagrams for the different input modes.
IMPORTANT: If the [Input Mode] is changed, power must be
cycled to the drive for the change to take effect. The Start and
Reverse functions operate differently for the two different
modes.