MTS Model FlexTest SE - Manual (Page 230)

Models FlexTest® IIm/GT/SE Controller Hardware
Model 493.42 System I/O Connections
FlexTest SE Controller Connections 230
Model 493.42 System I/O Connections
The Model 493.42 System I/O module is a dual-wide VME-based slave board
used in the Model 493.02 Chassis.
• Provides box-in and box-out, analog and digital I/O, E-Stop, and HSM and
HPU control.
• Contains three general purpose digital input channels and three general
purpose digital output channels.
• Interfaces the controller with a hydraulic power unit.
• Interfaces the controller with a hydraulic service manifold and other
devices.
• Provides one BNC channel for analog output signals. The output signals are
within ±10 V DC.
• Provides one BNC channel of analog input. The input signals must be
within ±10 V DC.
J25 Hydraulic Power Unit Connection
Connector J25 HPU controls the hydraulic power unit (HPU).
• The connector provides 24 V logic signals to control the HPU.
• The connector may be connected directly to MTS Series 505 HPUs, other
MTS HPUs via the Model 493.07 HPU Converter Box, and
24 V PLC compliant HPUs.
Note For more information, see “Hydraulic Configurations” on page 243.
Control voltages for hydraulic power units vary between models.
The HPU interface between the Model 493.42 System I/O board and an HPU
is 24 volt logic signals. Connecting J25 to a non-compliant HPU can damage
the module.
DO NOT connect 24 V DC relay circuitry or 115 V AC circuitry to connector J25 on
the Model 493.42 System I/O board.
CAUTION