
SINUS PENTA
PROGRAMMING GUIDE
350
/
486
38. ENCODER/FREQUENCY
INPUTS
MENU
38.1.
Overview
Three quick acquisition digital inputs are available in the Sinus Penta control board:
•
MDI6/ECHA/FINA;
•
MDI7/ECHB;
•
MDI8/FINB.
These inputs can be used as incremental encoder reading (encoder A) or as frequency inputs. In addition, if
ES836
or
ES913
optional board is used (see the Sinus Penta’s Motor Drives Accessories – User Manual), an additional encoder
reading (encoder B) is allowed.
NOTE
If
MDI6
and
MDI7
are used for encoder reading, only Push–Pull encoders can be used.
NOTE
For the reversal of the incremental encoder speed measure, properly set up parameter
C199
.
38.1.1.
W
HEN
ES836
IS
NOT
U
SED
•
Incremental
Encoder reading
:
Digital inputs
MDI6
and
MDI7
are used for reading the two channels of a 24V push–pull encoder powered directly by the
Sinus Penta control board (see the Sinus Penta’s Installation Guide).
No function can be programmed for
MDI6
and
MDI7
; if you attempt to program
MDI6
and
MDI7,
alarm
A082
Illegal
Encoder Configuration will trip when the
ENABLE
function is activated.
•
Reading a Frequency Input
:
Digital inputs
MDI6
or
MDI8
can be used.
If
MDI6
is programmed as a frequency input (
FINA
) with
C189
, no other function can be programmed; otherwise, alarm
A100
MDI6 Illegal Configuration trips when the
ENABLE
function is activated.
If
MDI8
is programmed as a frequency input (
FINB
) with
C189
, no other function can be allocated to MDI8, and
ES836
or
ES913
optional board must not be applied to the power drive, otherwise, alarm
A101
MDI8 Illegal Configuration trips
when the
ENABLE
function is activated.
•
Reading a Frequency Input and an Encoder
:
MDI6
and
MDI7
are used to read the push–pull encoder, and
MDI8
is used to read the frequency input. The following
alarms may trip:
•
A082
Illegal Encoder Configuration, if additional functions are allocated to
MDI6
or
MDI7
;
•
A101 MDI8
Illegal Configuration, if additional functions are allocated to
MDI8
or if the power drive detects the
presence of
ES836
or
ES913
optional board.