Signal types and scalings, 9300 servo plc, Preface and general information – Lenze DDS Target 9300 Servo PLC V8.x User Manual
Page 14: 7 signal types and scalings

9300 Servo PLC
Preface and general information
1−8
l
9300 Servo PLC EN 5.1
1.2.7
Signal types and scalings
Most inputs and outputs of Lenze function blocks/system blocks can be assigned to a certain signal
type. We distinguish between digital, analog, position and speed signals.
The identifier of the corresponding input/output variable has an ending (starting with an underscore).
It indicates the signal type.
Signal type
Ending
Memory
space
Scaling
(external value
º internal value)
Previous
identification
Analog
_a
(analog)
16 bits
100 %
º 16384
H
Digital
_b
(binary)
8 bits
0
º FALSE; 1 º TRUE
G
Phase difference or speed
_v
(velocity)
16 bits
15000 rpm
º 16384
F
·
Phase difference/speed ref. to 1 ms
·
Scaling example:
1 motor revolution + 65536 [inc]
Variable value (..._v) + 15000
60 [s]
@ 65536 [inc] + 15000
60000 [ms]
@ 65536 [inc] + 16384
ƪ
inc
ms
ƫ
Speed (on motor side) + 15000 [rpm] + 15000
60 [s]
Phase−angle or position
_p
(position)
32 bits
1 motor revolution
º 65536
E
High Word
Low Word
0
31
Direction (0 º clockwise rotation; 1 º counter−clockwise rotation)
No. of motor revolutions (0 ... 32767)
Phase angle or position (0 ... 65535)
Note!
Due to their scaling, analog signals have an asymmetrical resolution range (−200 % ... +199.99 %):
External value:
−200 %
−100 %
0
+100 %
+199.99 %
Internal value:
−32768
−16384
0
+16384
+32767