24V d.c., Class 2 transformer or power source required for UL compliance. The MC403-X is
grounded via the metal chassis. It MUST be installed on an unpainted metal plate or DIN
rail which is connected to earth. An earth screw is also provided on the rear of the
chassis for bonding the MC403-X to ground.
I/O CONNECTOR 1
24V INPUT CHANNELS
The MC403-X has 8 dedicated 24V Input
channels built into the master unit. A further
256 inputs can be provided by the addition of
CAN I/O modules. The dedicated input
channels are labelled channels 0..7. Inputs 0
to 7 can be used as high speed registration
inputs for axes 0 to 2, using the REGIST
command.
I/O POWER INPUTS
The I/O 0 Volts (IO-) and I/O 24 Volts (IO+) are used to power
the 24 Volt digital IO and the analogue I/O, including the servo
DAC outputs. The digital I/O connections are isolated from the
module power inputs. The analogue inputs and outputs are
isolated from the digital I/O and the module power inputs.
24V I/O CHANNELS
Input/output channels 8..11 are bi-directional. The
inputs have a protected 24V sourcing output
connected to the same pin. If the output is unused
it may be used as an input in the program. The
input circuitry is the same as on the dedicated
inputs. The output circuit has electronic over-
current protection and thermal protection which
shuts the output down when the current exceeds
250mA.
Care should be taken to ensure that the 250mA
limit for each output circuit is not exceeded, and
that the total load for the group of 4 outputs does not exceed 1 amp.
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