Etel DSC Series User Manual

ETEL Doc. - Operation & Software Manual # DSC2P 903 / Ver. F / 3/6/05 Chapter E: Appendixes
Operation & Software Manual
Direct Drives & Systems 361
20.1.2.2 Drive increments, rotary motors
Abbreviation used in the table below: NPCod = Encoder periods number per turn [p/r]
k = Fast time interrupt [s] (refer to §4.2
for more information).
h = Slow time interrupt [s] (refer to §4.1
for more information).
Remark: 1024 * 2
K77
and 64 * 2
K69
can be replaced by the value given by monitoring M241.
20.1.3 Resolution
The resolution is the value of a single increment expressed in the ISO unit system A distinction between the
user resolution and the controller resolution as in the unit system is also necessary.
Caution: The resolution is high when the value of the resolution is small and vice-versa.
For example (with an analog encoder), a user resolution value for speed is:
And for a controller resolution:
Unit Quantity Conversion formulae
Concerned
quantities
[rdpi]
Distance
rotary
drive
position
increment
[turn] → [rdpi]
[rdpi] → [turn]
• All internal
distances of
controller
• K30, K166,
K168, K167,
K189
• M0 to M5,
M8
[rdsi]
Speed
rotary
drive
speed
increment
[turn/s] → [rdsi]
[rdsi] → [turn/s]
• All internal
speeds of
controller
•K31
• M10, M11
[rdai]
Acceleration
rotary
drive
acceleration
increment
[turn/s
2
] → [rdai]
[rdai] → [turn/s
2
]
• All internal
acc. of
controller
•M14
Distance [rdpi] Distance [turn] 1024 2
K77
NPCod⋅⋅⋅=
Distance [rdpi] Distance [turn] 64 2
K69
NPCod⋅⋅⋅=
(for analog encoder)
(for TTL encoder)
Distance [turn] Distance [rdpi]
1
1024 2
K77
NPCod⋅⋅
---------------------------------------------------
⋅=
Distance [turn] Distance [rdpi]
1
64 2
K69
NPCod⋅⋅
---------------------------------------------
⋅=
(for analog encoder)
(for TTL encoder)
Speed [rdsi] Speed [turn/s] 256 1024 2
K77
NPCod k⋅⋅⋅ ⋅⋅=
Speed [rdsi] Speed [turn/s] 256 64 2
K69
NPCod k⋅⋅ ⋅ ⋅⋅=
(for analog encoder)
(for TTL encoder)
Speed [turn/s] Speed [rdsi]
1
256 1024 2
K77
NPCod k⋅⋅⋅ ⋅
------------------------------------------------------------------------
⋅=
Speed [turn/s] Speed [rdsi]
1
256 64 2
K69
NPCod k⋅⋅ ⋅ ⋅
------------------------------------------------------------------
⋅=
(for analog encoder)
(for TTL encoder)
Acceleration [rdai] Acc turn s
2
⁄[]65536 1024 2
K77
NPCod k
2
⋅⋅⋅ ⋅⋅=
Acceleration [rdai] Acc turn s
2
⁄[]65536 64 2
K69
NPCod k
2
⋅⋅ ⋅ ⋅⋅=
(for analog
(for TTL encoder)
encoder)
A
cceleration turn s
2
⁄[]Acc [rdai]
1
65536 1024 2
K77
NPCod k
2
⋅⋅⋅ ⋅
--------------------------------------------------------------------------------
⋅=
A
cceleration turn s
2
⁄[]Acc [rdai]
1
65536 64 2
K69
NPCod k
2
⋅⋅ ⋅ ⋅
--------------------------------------------------------------------------
⋅=
(for analog
(for TTL encode
r
encoder)
Speed [m/s]
Speed [usi]
1=
PCod 2
K50
⋅
256 1024 2
K77
h⋅⋅⋅
------------------------------------------------
User resolution [m/s]
PCod 2
K50
⋅
256 1024 2
K77
h⋅⋅⋅
------------------------------------------------
=⇒⋅=
    
Speed [m/s]
Speed [dsi]
1=
PCod
256 1024 2
K77
k⋅⋅⋅
------------------------------------------------
⋅=
    

Etel DSC Series Specifications

General

Brand	Etel
Model	DSC Series
Category	Controller
Language	English