￭
Isolation areas
The following figure describes the different isolation areas of the module.
X201
X53
X52
X51
A
B
C
2
3
4
6
7
1
5
X54
Connection to the drive
1
TTL encoder emulation output
2
Resolver input
3
TTL encoder input
4
Digital latches
5
Fixing screw
6
Chassis
7
The shields of sockets X51 and X52 and plug X53 are connected to chassis. The fixing
screw connects the chassis to ground.
Compatibility
￭
Resolvers
The FEN-21 is compatible with resolvers, which are excited by sinusoidal voltage (to
the rotor winding), and which generate sine and cosine signals proportional to the
rotor angle (to stator windings). Amplitude and frequency of the excitation signal can
be adjusted in range 4...12 V
rms
, 1...20 kHz. Transformation ratio of the resolver must
be such that sine and cosine signals remains in range 2...7 V
rms
.
￭
TTL Encoders
The FEN-21 is compatible with TTL incremental encoders with 1...65535 pulses/rev
and it supports reference mark.
14 Hardware description
