ABB MotiFlex e100 OPT-MF-005 Podręcznik użytkownika - Strona 12
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3.1.3 Digital outputs
Four independent digital outputs.
User supply: 28 V DC maximum.
Output current: 150 mA maximum.
Update frequency: 8 kHz.
The optically isolated outputs are designed to source current from the user supply as shown
in Figure 3-5. The TLP127 has a maximum power dissipation of 150 mW at 25°C. The
maximum saturated voltage across the outputs when active is 1.0 V DC, so it can be used as
a TTL compatible output. The output includes a self-resetting fuse that operates at
approximately 200 mA. The fuse may take up to 20 seconds to reset after the load has been
removed. If the output is used to directly drive a relay, a suitably rated diode must be fitted
across the relay coil, observing the correct polarity. This is to protect the output from the
back-EMF generated by the relay coil when it is de-energized. The sense of the output can
be configured in Mint WorkBench, and its state is displayed in the Spy window.
OPT-MF-005 Digital I/O
+3.3V
[Error]
When the MotiFlex e100 is connected to Mint WorkBench, the active level of an output can
be
configured
OUTPUTACTIVELEVEL can be used in the command window. An output may also be
configured for special purpose functions such as a motor brake output or global error output.
The state of these specially configured digital outputs can then be viewed using the Mint
WorkBench Spy window's Axis tab. The state of all digital outputs can also be viewed using
the Spy window's I/O tab. See the Mint help file for details.
3-4 Input / Output
200mA
TLP127
Figure 3-5: DOUT32/64 digital output circuit
using
the
Digital
Fuse
I/O
tool.
DOUT32/64+
13
DOUT32/64-
1
Alternatively,
the
User supply
24 V
Load
(Relay with
diode shown)
User supply
GND
Mint
keyword
MN1950WEN