MTS FlexTest Models 200 - Manual (Page 238)

MTS FlexTest® Models 40/60/100/200 Controller Hardware
Model 493.73 HPU Interface Board
Digital I/O and Transition Boards 238
Model 493.73 HPU Interface Board
About the Model 493.73 HPU Interface Board
The Model 494.73 HPU Interface board is a
single-width transition board that plugs into the
transition card cage on a Series 494 Chassis.
This board provides 24-volt logic signals that
control the hydraulic power unit (HPU).
Note The emergency stop (E-Stop) inputs
and outputs are part of a controller-wide
E-Stop system.
Board features
Service LED–The Service LED turns ON
during system startup and turns OFF when the
processor has successfully booted and is
communicating with the HPU interface board.
E-Stop Out (J23)–provides a set of E-Stop
relay contacts that can be used with external
devices.
E-Stop In (J24)–accepts an external emergency
stop switch.
HPU (J25–provides 24-volt logic signals that
control the hydraulic power unit (HPU).
Digital I/O (J54)–provides three digital inputs
and one digital output.
SERVICE
493.73
HPU
J23
E-STOP OUT
J24
E-STOP IN
J25 HPU
J54
SYS D I/O
J23 E-STOP OUT
J25 HPU
24 V DC, low-current control
J24 E-STOP IN
J54 Digital I/O
(three inputs, one output)
SERVICE LED