MTS Series 215 Rotary Actuator - Manual (Page 16)

Series 215 Rotary Actuator Product Manual 16
Actuator Specifications
Introduction
As the block diagram shows, a program command signal is input to the
controller. The command signal is compared to the feedback signal from one of
the actuator transducers. If the command signal equals the feedback signal from
the transducer conditioner, no DC error is present and the valve driver circuit
produces little or no servovalve control signal. If the command signal does not
equal the feedback signal, a DC error signal is sent to the valve driver circuit.
The valve driver circuit uses this signal to generate a servovalve control signal.
The servovalve control signal causes the servovalve spool to open in a direction
and by an amount necessary to direct a regulated flow of hydraulic fluid to the
actuator’s pressure or return ports. The actuator moves in response to the flow of
hydraulic fluid. The constant feedback of the closed-loop system enables the
controller to maintain precise control of actuator torque or movement.
Actuator Specifications
Series 215 Rotary Actuators are available in six models. This section lists
specifications for both the Series 215 Actuator and its options.
Series 215 Rotary Actuator Ratings by Model
M ODEL R ATED
T ORQUE *
D ISPLACEMENT T HRUST L OAD
Q (M AXIMUM )
S IDE
L OAD †
P (M AXIMUM )
B ENDING
M OMENT
M (M AXIMUM )
lbf·in. N·m in.
3
/rad cm
3
/rad lbf kN lbf kN lbf·in. N·m
215.32 2000 226 0.80 13.1 750 3.3 1500 6.67 3600 405
215.35 5000 565 1.9 31.1 750 3.3 3500 15.57 15,400 1732
215.41 10,000 1130 3.7 60.6 750 3.3 3500 15.57 15,400 1732
215.42 20,000 2260 7.2 117.9 750 3.3 3500 15.57 17,300 1946
215.45 50,000 5650 19.0 311.3 1200 5.3 5700 25.36 43,000 4837
215.51 100,000 11,300 38.0 622.7 1200 5.3 6500 28.92 50,000 5625
* Actuator is designed for cyclic use at rated torque: rated at maximum differential pressure at 21 MPa
(3000 psi).
† P and M are interdependent: if P is at maximum, M must be zero; if P = 75% of maximum, M may
be up to 25% of its maximum value.
‡ If these values are to be exceeded, additional internal or external cushions are required; contact
MTS.
§ w = rotational velocity in rad/sec and J or I = rotational inertia in lbm-in.
2
or kg-m
2
including inertias
from rotary actuator, flange, flexure, and 1/2 of test specimen (lbm = pounds mass).
¶ Does not include flange adapter.