KEB COMBIVERT F5 Instruction Manual - page 10
Resolver at channel 1
GB-10
4.1
Special resolver
The use of 2-pole resolvers (pole-pair number 1) is provided as standard. If a resolver with
another pole-pair number shall be used, the pole-pair number is to be used as gear factor.
Gear factor denominator
= pole-pair number
–––––––––––––––––––––
Gear factor numerator
If synchronous motors shall be operated in this constellation, it must be guaranteed that the
value pole-pair number x gear factor is integer (see example).
Example:
6-pole resolver (3 pole-pairs) at channel 1,
pole-pair number of the synchronous motor = 3
Ec.05 Gear factor channel 1 denomi-
nator
3000
= pole-pair number
––––––––––––––––––––––––––––––
–––
= ––––
––
Ec.04 Gear factor channel 1 numerator
1000
The operation of encoders which are not directly mounted at the motor or for operation of
resolvers with a pole-pair number > 1, parameter Ec.39 must be set to „1: motor encoder“.
The gear factor is 1/3, the pole-pair number of the motor = 3
Gear factor x pole-pair number of the motor = 1
=> Synchronous motor can be operated in this constellation.
5.
Error Messages
Error messages and their meaning are described in the inverter documentation.
For safety reasons a power-on-reset must always be executed after error
„E.EnC“.