Group 31 Compact Valve Actuators
Electrical Features
 Limit & Auxiliary Switches
Four cam-operated switches are
included as part of the control
module. Two switches open the
motor circuit and function as end-of-travel limit switches, and two
auxiliary switches are for external
signaling as required by the user.
The switch cams are driven
directly by the drive’s output shaft
for accurate control.
Electric Handswitch:
Convenient Local Operation -
Included in the Analog Modulating
models is an integral electric
Handswitch, which permits safe,
local operation at the valve’s individual location. This feature saves time
during installation and allows adjustments to be made quickly and
easily.
Large Terminal Block for Easy Field Wiring:
The upper board on the Group 31 drive provides wiring terminals for
field connection. This board is easily accessible to minimize time needed
for installation wiring and testing.
Holds Position Upon Loss of AC Power:
All Group 31 drives stay in place on loss of AC power, with a minimum
holding capacity of 150% of rated drive torque. When power is restored,
the drive automatically responds to control signal input to move to the
position specified.
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