MTS FlexTest Models 200 - Manual (Page 250)

MTS FlexTest® Models 40/60/100/200 Controller Hardware
Model 493.74 Two-Station HSM Interface Board
Digital I/O and Transition Boards 250
J28 Proportional HSM Output Configuration
The proportional HSM output option provides a current source that drives a
proportional solenoid on the HSM. The proportional output is configured
with the controller software.
Pressure settings
This board supports software-selectable HSM High and Low pressure
settings.
HSM rate settings
This board supports the following software-selectable HSM rate settings:
Fast (2 seconds) or Slow (4 seconds).
To calculate ramp rates
To calculate ramp times
The amount of time to reach low and high pressure depends on the Low and
High pressure settings and the HSM Rate setting.
Fast Rate (psi/s)
Maximum HSM Pressure (psi)
2 s (Fast)
------------------------------------------------------------------------- =
Slow Rate (psi/s)
Maximum HSM Pressure (psi)
4 s (Slow)
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Ramp time to low psi (s)
Low setting (psi)
Rate (psi/s)
----------------------------------------- =
Ramp time to high psi (s)
High setting (psi)-Low setting (psi)
Rate (psi/s)
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