MTS Model FlexTest SE - Manual (Page 108)

Models FlexTest® IIm/GT/SE Controller Hardware
Valve Connections
FlexTest GT Controller Connections 108
Valve Connections
The following types of valve connections are supported:
• Single or dual Series 252 Servovalve(s) can be controlled with a Model
493.14 Valve Driver mezzanine card.
• A Series 256 Servovalve can be controlled with a Model 493.15
3 Stage Valve Driver mezzanine card.
• A Series 257 Servovalve can be controlled with a Model 493.15
3 Stage Valve Driver mezzanine card and a Model 448.16C Power Driver
chassis.
• For single and dual valve configuration wiring information, see the
servovalve product manual (included with the System Documentation CD).
Improper operation can damage valve driver cards.
Damage can occur if you connect a high-level signal to a valve driver card
when the chassis power is off.
Do not apply a high-level signal to a valve driver card when the chassis power is
off. Disconnect power from any externally powered devices before you switch the
chassis power off.
Cable specification • 15-contact type D male EMI connector
• Backshell–EMI metallized plastic
• Cable type–4 conductor w/foil shield and drain (PN 010-093-580 or
equivalent) with the drain wire connected to metallized plastic backshell at
the chassis.
• For Series 256 and 257 Servovalves, the valve LVDT uses the same type of
connectors as the actuator LVDT.
• Servovalve/valve LVDT Y cable required for Series 256 or 257 servovalves
(PN 039-710-5XX).
CAUTION