Lenze DDS Target 9300 Servo PLC V8.x - Manual (Page 14)

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
ƒ
High Word Low Word 0 31
 ‚
 Direction (0 º clockwise rotation; 1 º counter−clockwise rotation)
‚No. of motor revolutions (0 ... 32767)
ƒ 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