Operational Interfaces
MagnaTran 7.1 User’s Manual
MISC I/O Communications
MN-003-1600-00
Brooks Automation
5-10
Revision 2.2
High Side I/O
The high side switching board is CE Compliant.
Connection of external devices to the MagnaTran 7 Robot for monitoring and control
through discrete I/O lines is done through the 50 pin connector located on the I/O
panel of the robot. There are 22 inputs and 20 output lines.
Inputs 24V with a nominal current draw of 2mA each. Outputs are buffered
and protected against output faults using intelligent high side drivers. If an output
fault is detected, the outputs of the affected device turn off and a red indicators on the
face plate will light. A fault message is sent to the host controller. Additionally, the
outputs will be disabled at power up. The outputs must be enabled and thereby clear
the fault.
I/O external and internal power is discussed in
.
The signals are logic levels, defined as follows:
High Side Logical Inputs
Compatible with any open collector driver (refer to the Input Circuit in
that can satisfy the following requirements:
Logic-zero:
-0.3 to +0.6 V DC; driver must sink 2 mA
Open-circuit
Logic-one:
+24V ±20%
High Side Logical Outputs
High side driver using UDN2987A (refer to the Output Circuit in
) and user
connects load from output pin to ground within the following requirements:
