Reference Modules
Description
Reference Modules
AMCI's RM-(X) reference modules enable compatibility between AMCI resolver interface modules and 3rd party resolvers.
Resolvers are basically rotary transformers, and depending on how they are made, different resolvers will have different electrical characteristics. AMCI resolver modules are designed to work with AMCI resolvers that have a transformation ratio of 0.95. Other common transformation ratios are 0.45, 0.5, and 1.4. AMCI has developed a line of Reference Modules, RM, to accommodate customers who are upgrading their control systems while keeping their existing resolvers in place. These RM modules are toroid transformers that wire into the resolver cable, and adjust the reference voltage signal so that the resolver will appear to the resolver module to have the expected transformation ratio. It is also possible to wire the RM modules so that you can use an AMCI resolver to replace an existing resolver while keeping your control system in place.
Specifications
| Part Number | 3rd Party Resolver/Controller Transformation Ratio |
|---|---|
| RM-1 | 0.5 transformation ratio |
| RM-3 | 1.4 transformation ratio |
| RM-5 | 0.45 transformation ratio |
| Part Number | 3rd Party Resolver/Controller Transformation Ratio |
|---|---|
| RM-1 | 0.5 transformation ratio |
| RM-3 | 1.4 transformation ratio |
| RM-5 | 0.45 transformation ratio |
Wiring Diagrams
AMCI Controller to 3rd Party Resolver
The above diagram shows how to wire the RM-(X) reference module so that an AMCI controller will work with a 3rd party resolver. Connect all of the remaining resolver signals, S1, S2, S3, and S4, directly to the corresponding pin on the controller.
AMCI Resolver to 3rd Party Controller
The above diagram shows how to wire the RM-(X) reference module so that an AMCI resolver will work with a 3rd party controller. Connect all of the remaining resolver signals, S1, S2, S3, and S4, directly to the corresponding pin on the controller.
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