MC404-Z
Document Version: 1.05
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12
Registration
MC404-Z encoder port has 2 available registration events. These are assigned in a flexible
way to any of the first 8 digital inputs or can be used with the Z mark input on the encoder
port.
I/O connector 1
This connector is used both to provide the 24 Volt power to the MC404-Z and provide power
and connections for the 24V NPN outputs. The 24 Volt main supply input is internally isolated
from the I/O 24 Volts.
A 24V d.c., Class 2 transformer or power source required for UL compliance. The MC404-Z is
grounded via the metal chassis. It MUST be installed on an unpainted metal plate which is
connected to earth. An earth connection screw should be applied to the lower mounting
point for bonding the MC404-Z to ground.
24V Output channels (NPN)
Output channels 8..15 are NPN sinking outputs.
The output circuit has electronic over-current
protection and thermal protection which shuts
the output down when the current exceeds
500mA.
Care should be taken to ensure that the 500mA
limit for each output circuit is not exceeded, and
that the total load for the group of 8 outputs does
not exceed 4 Amps.
I/O connector 2
24V Input channels (PNP / NPN)
16 channels of 24V digital inputs are provided in 2 banks of 8. Each set of 8 inputs has a
common connection which determines the mode of the inputs.
If the common is connected to 0V
then the 8 inputs are PNP and a
24V source signal will set the input
ON.
When the common is connected to
24V, the inputs are NPN and the
source signal must be a path to 0V
for the ON condition.
