KeyStart

Keystart control modules provide manual start/stop and automatic fault protection for generators, pumps and other engine-driven applications.

Outputs allow control of engine fuel (energized to run), starter motor and preheat. The Keystart also has an alarm output for remote or audible warning of faults. Six LEDs and icons indicate engine status and faults. Four switch inputs (closing to negative on fault) enable automatic shutdown on engine low oil pressure, high coolant temperature and auxiliary faults. Model 9621 has a fully adjustable engine overspeed shut-down feature, configurable for either generator AC or magnetic pickup speed signals. Charge alternator excitation and a charge fail warning LED are standard.

Power Supply

  • Operating voltage, steady state: 7 to 30VDC
  • Operating voltage, brown out/cranking: 5VDC minimum
  • Current consumption: <100mA

Inputs

  • Fault switch inputs: close to negative DC during fault
  • Generator AC input (model 9621 only): 70 - 270 VAC rms, <50 to >60 Hz nominal
  • Magnetic pickup input (model 9621 only): 3.5 - 21 VAC rms, <2000 to >6500 Hz nominal

Outputs (all ratings non-reactive)

  • Run (fuel): positive DC, NO relay contacts, 10A max @ 24VDC
  • Start (crank): positive DC, keyswitch contacts, 10A max @ 24VDC
  • Alarm: negative DC (open collector transistor), 300 mA max
  • Speed calibration: to suit 0-1mA, 75 Ohm meter, output=0.75mA at rated engine speed.

Adjustable settings

  • Preheat timer: 0 or 10 secs, default = 0 secs
  • Fault override timer: 2 to 20 secs (VR1), default = 10 secs
  • Overspeed trip level (model 9621 only): 100 to 130% (VR3) of nominal calibrated speed, default = 110% (of 50 or 60 Hz)

Physical

  • Case material: polycarbonate / polyester
  • Overall dimensions: (w x h x d): 3.8 x 3.8 x 3.7 in. (96 x 96 x 95 mm)
  • Panel cut-out size: DIN 3.6 x 3.6 in. (92 x 92 mm)
  • Weight: approx 0.7 lb. / 300g
  • Operating temperature: -31° to 131°F / -35° to 55°C
  • Electromagnetic compatibility: EN55022, class B

Service done right

Service Network

Palmer Johnson's six-location factory-authorized service center network features:

  • Factory-trained technicians
  • Field service
  • Onsite troubleshooting and diagnostics
  • Unit removal and installation

For service, call 1-800-341-4334.

Learn more

Madison, WI

Service Center

Service: (608) 834-5206

1835 Haynes Dr
Sun Prairie, WI 53590

Contact

Dallas, TX

Service Center

Service: (817) 505-2430

608 112th St
Arlington, TX 76011

Contact

Denver, CO

Service Dealer

Service: (720) 724-0033

5151 E 56th Ave
Commerce City, CO 80022

Contact

Kansas City, KS

Service Center

Service: (913) 202-6944

15360 South Mahaffie St
Olathe, KS 66062

Contact

Los Angeles, CA

Service Center

Service: (562) 356-1590

12020 Bloomfield Ave
Santa Fe Springs, CA 90670

Contact

Oklahoma City, OK

Warehouse

Sales: (800) 341-4334

Oklahoma City, OK 73128

Contact

Phoenix, AZ

Service Dealer

Service: (602) 253-0214

2401 S. 19th Street
Phoenix, AZ 85034

Contact

San Francisco, CA

Service Dealer

Service: (510) 342-2212

1930 W Winton Ave #14
Hayward, CA 94545

Contact

St. Louis, MO

Service Center

Service: (636) 203-9811

578 Rudder Rd
Fenton, MO 63026

Contact

Philadelphia, PA

Service Dealer

Service: (215) 822-8300

159 Discovery Dr
Colmar, PA 18915

Contact

Fort Myers, FL

Service Dealer

Service: (239) 693-7477

4821 Waycross Road
Fort Myers, FL

Contact

Odessa,

Service Center

Service: (432) 287-1015

By Appointment Only

Contact

Vancouver, British Columbia

Service Center

Service: (604) 879-6731

6741 Cariboo Rd Unit 205
Burnaby, British Columbia V3N 4A3

Contact

Edmonton, Alberta

Service Center

Service: (780) 434-9578

3804 53rd Ave NW
Edmonton, Alberta T6B 3N7

Contact

Seattle, WA

Service Center

Service: (425) 251-3434

1710 136th Ave E
Sumner, WA 98390

Contact

RECON Equipment Center, WI

Service Center

Service: (608) 834-5220

1828 Haynes Dr
Sun Prairie, WI 53590

Contact
Map of Palmer Johnson Power Systems locations