9.4 OPCRES Resolver Option Module
OPCRES is used for interfacing resolver motor feedback to AF-650 GP. Re-
solvers are used basically as motor feedback device for Permanent Magnet
brushless synchronous motors.
The Resolver option kit includes:
• OPCRES Resolver Option Module
• Enlarged Keypad fixture and enlarged terminal cover
Selection of parameters: RS-5# resolver Interface.
OPCRES Resolver Option Module supports a various number of resolver types.
Resolver specifications:
Resolver Poles Par. RS-50 Poles: 2 *2
Resolver Input Voltage Par. RS-51 Input Voltage: 2.0 – 8.0 Vrms
*7.0Vrms
Resolver Input Fre-
quency
Par. RS-52 Input Frequency: 2 – 15 kHz
*10.0 kHz
Transformation ratio Par. RS-53 Transformation Ratio: 0.1 – 1.1 *0.5
Secondary input volt-
age
Max 4 Vrms
Secondary load
App. 10 kΩ
NB!
The OPCRES Resolver Option Module can only be used with rotor-supplied
resolver types. Stator-supplied resolvers cannot be used.
LED indicators
LED 1 is on when the reference signal is OK to resolver
LED 2 is on when Cosinus signal is OK from resolver
LED 3 is on when Sinus signal is OK from resolver
The LEDs are active when par. EC-61 Feedback Signal Monitoring is set to
Warning or Trip.
AF-650 GP Design Guide
173
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