| Key
Features |
|
|
| - |
Accepts
sinusoidal motor
position feedback
signals from
a motor shaft
encoder |
| - |
Simulated
encoder (EIA485
quadrature or
frequency and
direction) output
|
| - |
Easy
drive positioning
feedback in
rugged and demanding
environments
|
|
|
| |
| Specifications |
| |
| Resolver Excitation
Output |
| |
| Output
wave form: |
|
6k
Hz 6 Vrms sine
wave |
| Protection: |
Over
current and
series ferrite
beads |
| Absolute
maximum applied
DC voltage (REFH):
|
+24
V - 4 V |
| Absolute
maximum applied
current (REFL,
0VREF): |
200
mA |
|
|
|
|
 |
|
| |
| Resolver Inputs
|
| |
| Protection: |
|
Series resistors
and clamp diodes |
| Absolute maximum
applied DC voltages: |
(SINL, COSL)
± 4 V |
| |
(SINH, COSH)
± 12 V |
|
|
| |
| Resolver Resolution |
| |
| The resolver resolution
is determined by the maximum required
speed as set up in parameters
of the drive. The maximum speed
can be changed when the drive
is enabled but only if the resolution
of the resolver does not also
require changing see table below.
|
| |
| Maximum
Motor Speed |
Resolver
Resolution |
Simulated
Encoder Output PPR in Quadrature
Mode* |
| 0
- 3000rpm |
14
bit |
4096 |
| 3001
- 12000rpm |
12
bit |
1024 |
| >
12000rpm |
10
bit |
256 |
|
| |
| Note*: in F and
D mode, the number of output pulses
per revolution is doubled. |
|
| |
| Encoder Simulation
Output |
| |
The Encoder simulation
output is derived from the resolver
through a digital conversion IC
within the option module. The
maximum number of pulses per revolution
is equal to the resolution of
the resolver divided by four (see
table above). Changing the maximum
speed of the motor so that the
resolution changes will cause
loss of position.
The Encoder resolution can be
reduced further by using the divide
parameter, changing this parameter
will also cause a loss of position.
The zero pulse position can only
be changed by rotating the resolver
relative to the shaft.
The outputs are to the EIA485
specification. |
| Maximum
frequency: |
|
205
kHz (quadrature mode)
410 kHz (F and D mode) |
|
| |
|
| Minimum pulse width (ENCZP/N): |
|
300nS |
| Absolute maximum applied voltage
wrt 0VENC: |
-10, + 15 V |
| Absolute maximum applied current
to 0VENC: |
200 mA |
| Protection: |
Current limit with thermal protection
and ferrite |
| |
beads in series with IC outputs |
|
UD53
