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EtherNet/IP™ CIP Safety™ IP67 HarshIO 600
33
IP67 Safety Digital I/O Modules
Safety Sourcing Outputs (TCDEC-8B4P-D1U-Gx and TCDEC-8B4P-DYU-Gx)
Safety sourcing outputs are used to drive the state of output devices.
Note!
HarshIO safe outputs are:
current sourcing at max. 1A
short circuit protected
pulse test configurable
A Safety Output can be configured as:
Not Used
(default) - The output is disable and
doesn’t participate in any safety function.
Safety Pulse Test
- The output generates pulse tests (when the output is active) to monitor short-
circuit between output pin and power supply
(stuck at “1”), or short with other active output from the
same M12 connector.
Notes!
Using the HarshIO SNCT software,
The Pulse tests length is configurable from 300µs to 10ms, in increments
of 100µs.
Pulse tests length default value is 500µs
Pulse tests period: 468ms
In addition to external shorts detection, all safety functions involved in
outputs switch-off are also diagnosed at each period. So a series of 4
pulse tests are applied on each safety output.
Note!
The pulse test should be configured according to the impedance of the connected
device. HarshIO safety has been design to control a wide range of device by using
an active discharge circuit. For each pulse test higher than 500µs (or equal), if a
residual voltage is present, a 50mA current is clamped during 300µs.
Nevertheless, if it is not enough and output goes into safe state due to the
capacitive load of the connected equipment, the pulse length can be increased (up
to 10ms).
Содержание TCDEC-8B4B-D1U-G8
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