70 Electrical installation: input / output
Status output - typical connections to an ABB NextMove e100:
Digital outputs DOUT1, DOUT2
Location: X3, pins 13 & 3 (DOUT1), 12 & 2 (DOUT2)
The optically isolated general purpose outputs are designed to source current from
an individual user supply connection. The TLP127 has a maximum power dissipation
of 200 mW at 25 °C. Each output includes a self-resetting fuse that operates at
approximately 200 mA. The fuse can 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.
Digital output circuit - DOUT1 shown:
When the MicroFlex e150 is connected to Mint WorkBench, the active level of the
outputs can be configured using the Digital I/O tool. Alternatively, the Mint keyword
OUTPUTACTIVELEVEL can be used. The state of the outputs is displayed in the Spy
window. See the Mint help file for details.
MicroFlex e150
Status-
CREF1
8
TLP280
9
1
11
DIN4
Status+
X3 X9
TLP127
User
supply
24 V
User
supply
GND
NextMove e100 / controller
Mint
OUTX(1)
TLP127
200 mA
MicroFlex e150
X3
13
3
DOUT1+
DOUT1-
User supply
V+
User supply
GND
Load
(relay with
diode shown)
Fuse
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