
Manual 37617B SPM-D2-10/YB - Synchronizing Unit
Page 4/51 © Woodward
Revision History
UL rating added to technical data / ambient variables for N & XN packages. See page 51.
Changed product name “SPM-D-xxx” to “SPM-D2-xxx”
Contents
Copyright And Disclaimer ......................................................................................................................... 3
Service And Warranty............................................................................................................................... 3
Intended Use............................................................................................................................................. 3
CHAPTER 2. GENERAL INFORMATION.........................................................................................7
CHAPTER 3. ELECTROSTATIC DISCHARGE AWARENESS .............................................................8
CHAPTER 4. INSTALLATION .......................................................................................................9
Wiring Diagram....................................................................................................................................... 10
SPM-D2-10/YB (24 Vdc) .............................................................................................................. 10
SPM-D2-10/NYB (90..250 Vac or 120…375 Vdc)........................................................................ 11
Reference Point...................................................................................................................................... 12
Power Supply.......................................................................................................................................... 12
Measuring Inputs .................................................................................................................................... 13
Mains/System U1 ......................................................................................................................... 13
Generator/System U2................................................................................................................... 13
Discrete Inputs........................................................................................................................................ 14
Relay Outputs......................................................................................................................................... 15
Controller Outputs................................................................................................................................... 15
CHAPTER 5. DESCRIPTION OF FUNCTIONS ...............................................................................16
Functionality............................................................................................................................................ 16
Table of Functions........................................................................................................................ 16
Control Inputs.......................................................................................................................................... 17
Isolation of the Power Supply from the Discrete Inputs.......................................................................... 17
Operating Conditions.............................................................................................................................. 18
No Load Control ........................................................................................................................... 18
Synchronizing............................................................................................................................... 18
Dead Bus Start (Asynchronous Add-On)...................................................................................... 19
Synch-Check ................................................................................................................................ 19
Control Outputs....................................................................................................................................... 20
CHAPTER 6. DISPLAY AND OPERATING ELEMENTS ...................................................................21
Brief Explanation of the LEDs and Push Buttons ................................................................................... 22
LEDs............................................................................................................................................. 22
Buttons ......................................................................................................................................... 22
Others........................................................................................................................................... 22
LEDs....................................................................................................................................................... 23
Push Buttons........................................................................................................................................... 25
LC Display............................................................................................................................................... 26