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Spec Tech Industrial Electric
Chapter 2: Installation
I/O Rack Installation & Removal
Before installation, confirm that the I/O power is compatible with the Series 1746R PLC Resolver
Interface Module. (See Appendix A: Specifications, Power Requirements). The Series 1746R
PLC Resolver Interface Module can be installed into any open slot in the A-B SLC 500 rack.
Align the module's circuit board with the top and bottom card guides and gently slide in until it
latches securely. To remove the module, depress the top and bottom latches and slide the module
out of the rack.
NOTE: The Series 1746R has a convenient plug-in terminal strip. Therefore, the module can be
removed or replaced without rewiring the terminal strip.
Resolver Installation
It is recommended to use Gemco Series 1986 Resolvers with the Gemco Series 1746R Resolver
Interface Module. Series 1986 resolver specifications, mounting guidelines and outline drawings
are available from the factory.
NOTE: The Gemco Series 1746R Resolver Interface Module has been designed to be
compatible with other resolver inputs. Contact the factory for details.
Resolver Cable Installation
It is recommended that the resolver cable be run in a separate conduit and should be a continuous
uninterrupted length. Resolver cable installation is covered in the Wiring Diagrams in Appendix B of this
manual. The maximum cable length using Belden 9873 (or equivalent) is 1,000 feet.
Input Wiring
If wiring for Brake Monitoring, the input must be driven "high" (see Appendix A: Specifications) when
the brake is disengaged. The input is then released (power removed) when the brake engages to initiate
stop time/stop angle calculations.
If wiring for Reset-to-Preset, the input must be driven "high" (see Appendix A: Specifications) to initiate
resetting to the preset value.
Power Requirements
See Appendix A: Specifications
3
Spec Tech Industrial Electric
www.spectechind.com
Installation & Programming Manual
www.spectechind.com
888-773-2832
Chapter 2: Installation
888-773-2832
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