Technical data
Page 45
4.5.1
Resolver connector [X2A]
The 9-pin D-SUB connector [X2A] is used to evaluate standard resolvers. Single- and multi-pole resolvers are supported. The
number of pole pairs of the resolver must be specified by the user in the "Motor Data" menu of the item Motion Soft
parameterisation program so that the item C 3-Series can determine the speed correctly. The number of pole pairs of the
motor (P
0motor
) is always an integer multiple of the number of pole pairs of the resolver (P
0resolver
). Incorrect combinations, e.g.
P
0resolver
= 2 and P
0motor
= 5, will result in an error message during the motor identification process.
The resolver offset angle, which is automatically determined during the identification process, is a read/write value for service
purposes.
Table 18:
Technical data: resolver [X2A]
Parameter
Value
Transformation ratio
0.5
Carrier frequency
5 to 10 kHz
Excitation voltage
7 V
RMS
, short circuit-proof
Excitation impedance (at 10 kHz)
≥
(20 + j20)
Ω
Stator impedance
≤
(500 + j1000)
Ω
Table 19:
Technical data: resolver interface [X2A]
Parameter
Value
Resolution
16 bits
Signal detection delay
< 200 µs
Speed resolution
approx. 4 rpm
Absolute angle detection accuracy
< 5 ´
Max. speed
16,000 rpm
