MTS Series 793 Utility Software - Manual (Page 89)

Description Item
Low Percent: 25. HSM low pressure setting as a percentage
of full-scale. Hydraulic Interface icon
(continued)
High Percent: 100. HSM high pressure setting as a percentage
of full-scale.
HSM Rate: Slow = 4 seconds. Fast = 2 seconds.
Ramp time from zero to low pressure = Low Percent value x
HSM Rate value
Ramp time from low to high pressure = High Percent value x
HSM Rate value / Ramp time from zero to low pressure
Time to achieve low pressure from zero = (Low Percent value)
x (HSM Rate value).
Time to achieve high pressure from low pressure = (High
Percent value x HSM Rate value) - (Time to achieve low
pressure).
Example: Suppose Low Percent value = 25, High Percent value
= 100, and HSM Rate = Slow (4 seconds).
Time to achieve low pressure = 0.25 x 4 = 1 second
Time to achieve high pressure = (1 x 4) - (1) = 3 seconds
Connect to HPU:
True: Indicates the HSM requires the HPU to be started (either
manually or as “first on”) prior to be started.
False: Indicates the HSM can be activated without an HPU
activation.
Connector: J29A or J29B. Interlock Interface icon
Assign to Interlock: Select a interlock chain (1–8) for the J29
interlocks. You can assign more than one J29 interlock to the
same interlock chain to provide redundancy.
Note:
Typically, the interlock chain assignment that you make
in the .hwi file should match the interlock chain that you
assign to the station when you load it in Station Manager.
Gate Interlock: True or False, True=the controller responds to
the gate interlock signal on pins 3 and 4 of J29. False=J29 pins
3 and 4 are reserved for Program Stop interlock.
CAUTION:
Failure to enable the gate interlock option on systems that can operate in Slow
(low-flow) mode can result in unexpected actuator movement when switching the
system from Slow mode to Fast mode.
MTS Series 793 Utility Software 75
HWI Hardware Settings