Johnson Controls M9108-JGA-2

ELECTRIC MOTOR ACTUATOR; 70 IN-LB/8NM; 24 VAC/VDC; PROP RESISTANCE INPUT; 0-10 VDC FEEDBACK

Note: Image reflects M9108-GGA-2.

The M9108 actuators are available for use with on-off, floating, proportional, or resistive controllers. These bidirectional actuators do not require a damper linkage, and are easily installed on a damper with a round shaft up to a ¾ in (20 mm) in diameter or a square shaft up to ⅝ in (16 mm). They may be direct or remote mounted to a damper, or mounted to a valve using one of the M9000-5xx Valve Linkage Kits.

A single M9108 model delivers up to 280 lb·in (32 N·m) of torque. Two AGx, GGx, or HGx models in tandem deliver twice the torque or 560 lb·in (64 N·m). The angle of rotation is mechanically adjustable from 0 to 90° in 5-degree increments. Integral auxiliary switches are available to indicate end-stop position or to perform switching functions at any angle within the selected rotation range. Position feedback is available through switches, a potentiometer, or a 0 (2) to 10 VDC signal.

Features:

• Provides a running torque of 70 lb·in (8 N·m)
• Offer the most suitable choice for the application
• Four Control Inputs - Meet the needs of most applications
• Output Position Feedback - Provides simple, closed-loop control with accurate position sensing
• Electronic Stall Detection - Ensures higher reliability by deactivating the actuator motor when a stall condition is detected
• Master/Slave Operation - Allows synchronized control for two actuators stacked for tandem applications
• Zero and Span Adjustment (HGx Models) - Allows sequential operation of dampers from a single input signal of 0 (2) to 10 VDC, 0 (4) to 20 VDC, or 0 (4) to 20 mA
• Jumper-selectable Rotation Direction and Manual Gear Release - Simplify installation, setup, and field adjustments
• NPT Threaded Housing - Provides easy connection for electrical fittings