Woodward: LS-521-1/P1 8440-2178

Product number: 8440-2178

Manufacturer product number: 8440-2178

Description: woodward: CONTROL-LS-521-1/P1. 1A, Version 2

Predecessor: 8440-1952

Discrete Inputs: Operation Logic

Discrete inputs may be configured to normally open (N.O.) or normally closed (N.C.) states. In the state N.O., no

potential is present during normal operation; if an alarm is issued or control operation is performed, the input is

energized. In the state N.C., a potential is continuously present during normal operation; if an alarm is issued or

control operation is performed, the input is de-energized.

The N.O. or N.C. contacts may be connected to the signal terminal as well as to the ground terminal of the dis

crete input. See previous chapter Discrete Inputs: Signal on page 38 for details.

DPC-RS-232 direct configuration cable

Use the DPC-RS-232 direct configuration cable if you want to connect the Woodward controller to an external

device (master) which is equipped with an RS-232 port.

Order item number:

DPC-RS-232 direct configuration cable – P/N 5417-557

Troubleshooting Possible CAN Bus Problems

If data is not transmitting on the CAN bus, check the following for common CAN bus communication problems:

• A T-structure bus is utilized

• CAN-L and CAN-H are interchanged

• Not all devices on the bus are using identical Baud rates

• Terminating resistor(s) missing

• The configured baud rate is too high for bus length

• The CAN bus cable is routed in close proximity with power cables

Woodward recommends the use of shielded, twisted-pair cables for the CAN bus (i.e.: Lappkabel Unitronic

LIYCY (TP) 2×2×0.25. UNITRONIC-Bus LD 2×2×0.22).

Maximum CAN Bus Length

The maximum length of the communication bus wiring is dependent on the configured Baud rate. Refer to Table

2-22 for the maximum bus length (Source: CANopen; Holger Zeltwanger (Hrsg.); 2001 VDE VERLAG GMBH,

Berlin und Offenbach; ISBN 3-8007-2448-0).

The maximum specified length for the communication bus wiring might not be achieved if poor quality wire is

utilized, there is high contact resistance, or other conditions exist. Reducing the baud rate may overcome these

issues.

Operation of the unit via the front panel is explained in “Chapter 4: Operation”. This chapter will familiarize you

with the unit, the meanings/functions of the buttons, and the display.

Install ToolKit Software

1. Please insert the enclosed Product CD in the CD-ROM drive of your computer

2. The CD is going to start automatically (autostart function needs to be activated)

3. Please go to the section “Software” and follow the instructions described there

2. Select ToolKit in the list and click the “Go” button

3. Click “More Info” to get further information about ToolKit

4. Choose the preferred software version and click “Download”

5. Now you need to login with your e-mail address or register first

6. The download will start immediatly

Minimum system requirements for ToolKit:

• Microsoft Windows® 10. 8.1. 7. Vista (32- & 64-bit)

• Microsoft .NET Framework 4.5.1

• 1GHz or faster x86 or x64 processor

• 1GB of RAM

• Minimum 1024 by 768 pixel screen resolution at 96 dpi text size

• Serial Port

• Serial Extension Cable

• IXXAT or Kvaser CAN adapter and driver

• CD-ROM drive

1. Please insert the enclosed Product CD in the CD-ROM drive of your computer

2. The CD is going to start automatically (autostart function needs to be activated)

3. Please go to the section “Configuration Files” and follow the instructions described there