TB Wood's WFC1000 Series Installation, Operation And Maintenance Instructions Download Page 60

Page: 60 / 82

6.2 WFC

Series Options

WPC Plug-In Option Boards
WPC Plug-In Option Boards are specifically designed to work with WFC

Series AC Inverters. They install

inside any WFC model inverter above the control board in the J7 option connector.

WPC01 – Isolated Output Board
The WPC01 Isolated Output Board has two functions. One section is used to convert the three open collector
transistor outputs (ST1, ST2 & ST3) to Form C contacts rated 115 VAC @ 1 Amp for customer use. Each relay
can be individually programmed to indicate one of eleven (11) inverter states. The other section provides two
isolated, 4-20 mA output signals for customer use. One output varies proportionally to output load, and the
other is programmable to follow either frequency, volts, current, load or torque.

WPC02 – 115 Volt Input Interface Board
This option card is used to allow the inverter to be controlled by 115 VAC signals instead of the 24
VDC logic. It provides isolated control of FWD, REV, R/J, PS1, PS2, PS3, ART, MOL, CTS and RST.
Additionally, two relays are provided with one Form C contact each rated 115 VAC @ 1 Amp. These are
controlled by the settings of ST1 and ST3. A Triac output is also supplied which is controlled by the setting of
ST2.

WPC03 – Relay/Line Transfer Board
This option board provides three relays to convert the three open collector transistor outputs (ST1, ST2, &
ST3) to Form C contacts rated at 115 VAC @ 1 Amp for customer use. It also allows for synchronous transfer
of a motor from inverter power to AC line power and back when used with external contractors (not supplied).

WPC04 – Encoder Interface Board
The WPC04 option allows the user to interface the WFC

or WFC Series Inverter to a shaft mounted encoder

or magnetic pickup. It permits such advanced control functions as: Closed loop speed control, Master/Follower
operation, and Event counting.

WPC05 – Process Control Board
The WPC05 board adds two additional functions to the WFC

or WFC Series Inverters: a bi-polar speed

reference input with trim and an interface with process signals for speed regulation. The bi-polar speed
reference allows a ± 10 VDC signal or potentiometer to be used to control both the speed

and direction of the

motor. The process control function permits set-point with proportional and integral gain adjustment, of pumps,
fans, winders, etc., using standard analog feedback signals.

WPC06 – Logic Interface Board
This option board has similar features and functions as WPC02 – 115 VOLT Input Interface Board but is
scaled for use with 24 volts AC or DC control signals. It also permits the WFC

to be controlled by open

collector “pull-down” transistor circuits if required. The Triac output used on the WPC02 is not provided.

WKM01 – Keypad Mounting Kit
The WKM01 option is intended for use when the standard WFC

is mounted inside another enclosure and it is

desired to have the standard keypad remotely mounted on that enclosure. It allows the keypad to be remotely
mounted from the control. The kit includes a mounting bezel, instructions, a 10 foot cable for installation, and a
terminal “fan-out” strip. When used with WBP01 (see below), the keypad can be mounted more than 100 feet
from the control. If property installed, the keypad will retain its NEMA 4 rating.

WKM02 – Keypad Remote Control Kit
The WKM02 option is intended for use when it is desired to have the standard keypad remotely mounted from
the NEMA 4 WFC

unit. It allows the keypad to be mounted in its own enclosure up to 100 feet from the

control. The kit includes the mounting enclosure (5.35" x 6.78" x 2.5" HxWxD), keypad connector fan-out
board, WBP01 Keypad Blank Plate Option and instructions for installation. When properly installed, the keypad
and unit will retain their NEMA 4 ratings.

WBP01 – Keypad Blank Plate Option
This option is used to replace the digital keypad in NEMA 4 models when the keypad has been remotely
mounted. When properly installed, the WFC

will retain its NEMA 4 rating.

WDB211/WDB411 – External Dynamic Brake Assembly
The WDBxxx assemblies are designed to increase the capacity of the WFC

to absorb the regenerated

energy from a motor during rapid deceleration or overhauling loads. The WDB211 is designed to connect to
any 230 Volt WFC

Inverter and provide 10 horsepower of braking capacity at a 10% duty cycle. Similarly, the

WDB411 is intended for use on 460 volt models. For capacities greater than 10 horsepower, units can be
connected in parallel.

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com