Fadal Style Resolver Assembly
Fadal Style Resolver Assembly. Used on Glentek MTR-0002, MTR-0003, MTR-0010, MTR-0125.
See Features and Benifits Section for Test Instructions.
| Warranty | 90 Day Warranty. |
|---|---|
| Repair Price | No |
Resolver Test
You can test a resolver to see if it is indeed bad by using a voltmeter and measuring the resistance of the coils inside the resolver. The Resolver is constructed of three coils; two excitation coils and one reference coil that is connected to the axis controller card. resolver
The image below shows the interface connector and the associated coil connections.
1. Check Resistance:
AMCI Resolver:
Pair A = 35 to 45 Ohms, Pair B = 125 to 135 Ohms, Pair C = 125 to 135 Ohms
Note: B and C will have the same values; the actual value depends on the manufacturer.
Harowe Resolver:
Pair A = 70 to 80 Ohms, Pair B = 190 to 220 Ohms, Pair C = 190 to 220 Ohms
Note: B and C will have the same values; the actual value depends on the manufacturer.
2. Check for Coil-To-Coil shorts:
Any other pin combination besides the three individual pairs must result as an open circuit.
3. Check for Short to ground:
Check resistance of each pin to Resolver frame (case). They must not be shorted to the resolver frame.
4. Check the voltage when connected:
Pair A = 1.7 VDC Pair B and C = 3.5 VDC Pair A goes directly to the 1010 axis card;
J2 bottom bullet connector.
