Elmo Tuba Digital Servo Manuale Utente
A.10 I/Os
The Tuba has:
10 Digital Inputs
6 Digital Outputs
2 Analog Inputs
A.10.1 Digital Input Interfaces (on GENERAL I/O port)
Feature Details
Connector
Location
Type of input
Optically isolated
Single ended
PLC level
Input current
Ω
−
=
2500
5
.
6 V
Vin
Iin
* Iin = 2.2 mA @ Vin = 12 V
Input current
for high speed
inputs 5 & 6
for high speed
inputs 5 & 6
Ω
−
=
1250
5
.
6 V
Vin
Iin
* Iin = 4.4 mA @ Vin = 12 V
High-level
input voltage
input voltage
12 V < Vin < 30 V, 24 V typical
Low-level
input voltage
input voltage
0 V < Vin < 6.5 V
Minimum
pulse width
pulse width
> 4 x TS, where TS is sampling time
Execution time
(all inputs):
the time from
application of
voltage on
input until
execution is
complete
(all inputs):
the time from
application of
voltage on
input until
execution is
complete
If input is set to one of the built-in functions —
Home, Inhibit, Hard Stop, Soft Stop, Hard and Soft
Stop, Forward Limit, Reverse Limit or Begin —
execution is immediate upon detection:
0 < T < 4 x TS
Home, Inhibit, Hard Stop, Soft Stop, Hard and Soft
Stop, Forward Limit, Reverse Limit or Begin —
execution is immediate upon detection:
0 < T < 4 x TS
If input is set to General input, execution depends
on program. Typical execution time:
on program. Typical execution time:
≅ 0.5 msec.
High-speed
inputs 5 & 6 -
minimum pulse
width, in high-
speed mode
inputs 5 & 6 -
minimum pulse
width, in high-
speed mode
T < 5
µsec
Notes:
Home mode is high-speed mode and can be
used for fast capture and precise homing.
used for fast capture and precise homing.
High speed input has a digital filter set to
same value as digital filter (EF) of main
encoder.
same value as digital filter (EF) of main
encoder.
Highest speed is achieved when turning on
optocouplers.
optocouplers.
2.
5
K
In
p
u
t R
e
tu
rn
(
i)
DI
GI
NPUT
GI
NPUT
Digital Input Schematic
DIGITAL INPUTS
Tuba Installation Guide
Technical Specifications
MAN-TUBIG (Ver. 1.3)
A-13