Rockwell Automation Allen-Bradley 160 SSC Series, Руководство пользователя

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2-20 Installation and Wiring
Preset Speed Model
You can control the output frequency of the drive via the Control Terminal Block
(TB3) using dry contacts or open collector inputs to SW1, SW2, and SW3 (see
Figure 2.21).
Important:
Refer to parameters 61 – 68 in Chapter 5 for the eight preset
frequency factory default settings and switch configurations. A
program keypad module is required to change the factory default
settings.
TB3 Control Wiring for Preset Speed Model Figure 2.21
➊
Internal 12V supply. Contact closure or open collector input required. Refer to Appendix A for solid
state control input specifications.
➋
Control signal cable length is highly dependent on electrical environment and installation practices.
To improve noise immunity, TB3 Common must be connected to ground terminal/protective earth.
For control wiring installations greater than 15 meters (50 feet) in length, an optional 24V DC
interface module is recommended. See Appendix A for ordering information.
Analog and Preset Models
Internal Frequency Source
Both the Analog Signal Follower and Preset Speed models have the provision for
frequency control via
P58 - [Internal Frequency]
. This is accomplished by setting
P59 - [Frequency Select]
to a value of 1. See Chapter 5 for a description of these
parameters.
What To Do Next
You should become familiar with the Program Keypad Module operation in
Chapter 3 if you need to change any factory default parameter settings for your
application.
Then proceed to Chapter 4, Start-Up and follow the flow diagram. After applying
power, you can program parameters if necessary. Refer to Table 5.A for a list of
commonly changed parameters.
1
23
4
Common
➋
SW2
➊
SW1
➊
SW3
➊
TB3
To select/program preset speeds,
use parameters 61 – 68