
Model 494.16 VD/DUC Mezzanine Card
MTS FlexTest® Models 40/60/100/200 Controller Hardware Mezzanine Cards
161
Specifications–Model 494.16 Valve Driver Card
PARAMETER SPECIFICATION
Output Current 100 mA maximum per output (software configurable)
Valve Outputs per
Card
2
Dither
Frequency
Amplitude
1 Hz–4915.2 Hz (software adjustable)
0–5 V DC (software adjustable)
Valve Clamping Software configurable valve clamping setting
performs the following actions when a hydraulic
interlock occurs.
• Disabled—Valve does not clamp. This is the
default action if the clamp entry is omitted.
• Zero—Clamps the servovalve to zero. If valve
balance is used, it will clamp to this value.
• Positive—Clamps the servovalve to positive
50% spool opening on a 2-stage valve driver,
50% outer-loop command on the 3-stage valve
driver.
• Negative—Clamps the servovalve to negative
50% spool opening on a 2-stage valve driver,
50% outer-loop command on a 3-stage valve
driver.
Valve Balance
Offset
+/- 10 V DC (software adjustable)
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