Danfoss VLT Decentral Drive FCD 302 Design Manual page 91

Type Code and Selection Gui...
R1 Rotor
R2
Resolver
stator
S4
Motor
Illustration 6.5 Connections for Resolver Option MCB 103
NOTICE
The Resolver Option MCB 103 can only be used with
rotor-supplied resolver types. Stator-supplied resolvers
cannot be used.
NOTICE
LED indicators are not visible at the resolver option.
LED indicators
•
LED 1 is on when the reference signal is OK to
resolver.
•
LED 2 is on when the cosine signal is OK from
resolver.
•
LED 3 is on when the sine signal is OK from
resolver.
The LEDs are active when parameter 17-61 Feedback Signal
Monitoring is set to [1] Warning or [2] Trip.
MG04H302
Design Guide
B01 REF+
B02 REF-
B03 Cos+
B04 Cos-
B05 Sin+
B06 Sin-
LED 1 REF OK
LED 2 COS OK
LED 3 SIN OK
LED NA
REF+ R1
R2
REF-
S1
COS+ S1
COS- S3
SIN+
S2
SIN- S4
S3
Illustration 6.6 Resolver Signals
S2
Set-up example
In this example, a permanent magnet (PM) motor is used
with resolver as speed feedback. A PM motor must usually
operate in flux mode.
Wiring
The maximum cable length is 150 m (492 ft) when a
twisted pair type of cable is used.
NOTICE
Shield and separate the resolver cables from the motor
cables.
NOTICE
The shield of the resolver cable must be correctly
connected to the decoupling plate and connected to
chassis (ground) on the motor side.
NOTICE
Always use shielded motor cables and brake chopper
cables.
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