Installation and Operation Instructions for Dual Set Point Speed Switch
HD9063 Series
Revised
Section 20
Please read the following information before installing. A visual inspection of this product for damage during shipping is recommended before mounting. It is your responsibility to have a qualified person install this unit and make sure it conforms to NEC and local codes.
GENERAL INFORMATION
WARNING
BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT
✔Disconnect all electrical power to the machine.
✔Make sure the machine cannot operate during installation.
✔Follow all safety warnings of the machine manufacturer.
✔Read and follow all installation instructions.
Description
The HD9063 Series is a unitized two set point speed switch with SPDT relay outputs. HD9063 is a
Models are available for crank disconnect/overspeed and for underspeed/overspeed applications. Trip points can be field adjusted on all models. LED’s next to the set point potentiometers indicate that the trip point has been reached and the relay(s) have operated. An overspeed test circuit is
The HD9063 can disconnect the starter on automatic start engine applications and shutdown the engine if an overspeed situation occurs.
Two separate adjustable speed switches are included on one common board.
Specifications
Power Supply:
Voltage:
Maximum Current: 150 mA
Frequency Signal:
Voltage, Magnetic Pickup Signal Models
•Minimum: 0.35 Vrms
•Maximum: 60 Vrms
Maximum Current, Magnetic Pickup Signal Models: 4.8 µA.
Adjustment Range, Magnetic Pickup Signal Models
• HD9063 Model
Crank Disconnect:
Overspeed: 1,100-10,000 Hz
•
Reset Differential, Magnetic Pickup Signal Models
• HD9063 Model
Crank Disconnect: Dropout 160 Hz ± 5%
Overspeed: 200 Hz Differential
•
Underspeed: +5% of Set point Differential
Overspeed: 155 Hz ± 10% Differential
Output: Relay Contact, SPDT, Resistive Load: (2) 5 A, 30 VDC
Adjustment: (2)
Temperature Range: 14 to 158°F
