Rockwell Automation 1336 3-20HP FRN 1.01-3.01 - Manual (Page 65)

Wiring
Chapter 6
6-18
Terminal Block TB2 -
Important: Control functions affected by drive parameter programming
Control and Signal Wiring (cont.)
and selection are indicated on the following pages. Refer to the 1336
Programming Manual to verify that the drive is programmed to meet your
requirements.
Terminal 1
Potentiometer High
Full CW or high side external potentiometer connection.
Terminal 2
Potentiometer Wiper
Wiper external potentiometer connection.
Terminal 3
Potentiometer Low
Full CCW or low side external potentiometer connection
These terminals are provided for connecting a remote 10k
Ω
potentiometer.
The potentiometer frequency control is the range between drive minimum
and maximum frequency settings.
For drives with Main Control Board Firmware Version 1.0. or 1.10, the
frequency resolution is the range divided by 514, but no less than 0.005Hz.
For drives with Main Control Board Firmware Version 1.11-3.01, the
frequency resolution is the range divided by 633, but no less than 0.005Hz.
Terminals 1, 2, 3
Open Circuit Detection
For drives with Main Control Board Firmware Version 1.01 or 1.11-3.01,
drive logic is capable of detecting an open circuit potentiometer input at
TB2, Terminal 3. Drive logic will detect an open circuit at the
potentiometer low input only if the potentiometer wiper remains connected
to Terminal 2 and pot high is connected to Terminal 1.
For drives with Main Control Board Firmware Version 1.01, drive logic is
not capable of detecting an open circuit at TB2, Terminal 3.
Terminals 3 and 4
Signal Common
These terminals are provided to terminate both minus and drive common
signals to TB2. Terminals 3 or 4 are also used to terminate any shields for
cables connected to TB2.