Murphy Keystart 9620 - Manual
Murphy Keystart 9620 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – General connection recommendations; use separate routing for AC and DC wiring harnesses.; Terminal functions; Pin Function; until the Keystart initiates an automatic fault shutdown.; Front view and operation; HIGH VOLTS
- Page 3 – remove the DC power supply.; output; Typical connection
- Page 4 – Selection of speed signal source: links J2 and J3; links; Speed calibration; Speed calibration is a two stage process:; ) Nominal speed calibration: potentiometer VR2; Start and run the engine to nominal (normal running) speed.; Maintenance and Warranty; Check that all electrical connections are secure.; SPEED SENSING AND CALIBRATION
BEFORE BEGINNING INSTALLATION OF THIS 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
W A R N I N G
General
The Keystart 9620 series provides manual start/stop and automatic
fault shutdown protection for generators, pumps and other engine-
driven applications.
Keystart features a 3 way keyswitch for operator control of the engine,
with 6 LEDs for indication of status and faults - see ‘front view’ diagram
for details. Electrical connection and configuration options are at the rear
- see ‘Rear view, connection and settings’ diagram.
For each Keystart ordered, the following is supplied:
•
1 x Keystart module, fitted with 2 x panel mounting clips
•
2 x keys
•
these instructions
Panel installation
Keystart is designed for front-of-panel mounting in a DIN standard
92 x 92 mm (3.6 x 3.6 in.) cut-out. Allow 75mm (3.0 in.) behind the
panel for the case depth, keyswitch and cable connection.
Secure the case to the panel with the two ratcheted mounting clips:
1. 2.
3.
Remove the plastic
mounting clips from
the Keystart case:
release each clip’s
ratchet mechanism by
pulling outwards (A),
then slide the clip
back and off the
case (B).
At the front of the
panel, insert the
Keystart (without
clips) into the panel
cut-out (C).
At the rear of the panel,
refit the two mounting
clips into the slots on
the Keystart case (D).
Slide each clip forward
until the arms (E) are
secured behind the
panel face. Ratchet
mechanism (F) prevents
the clip from moving
backwards.
Keystart 9620 series
Engine & Generator Controls
Installation Instructions
00-02-0657
revision A, 22
nd
September 2008
catalogue section 40 & 75
Please read the following information before installing.
A v isual inspection of this product for damage during
shipping is recommended before installation. It is your responsibility to ensure that qualified mechanical and electrical
technicians install this product. If in doubt, please contact your local Murphy representativ e.
GENERAL INFORMATION
Product specifications
power supply:
operating voltage:
steady state
brown out / cranking
7 – 30 VDC
5 VDC
current consumption
< 100mA
inputs:
fault switch inputs:
close to negative DC during fault
–ve input defined as:
–1V to +1V w.r.t. – ve DC supply
speed sensing input:
generator AC (J2+J3 on)
mag. pickup (J2+J3 off)
(model 9621 only)
70 – 270 VAC rms,
<50 to >60 Hz. nominal
10 – 60 VAC peak,
<2000 to >6500 Hz. nominal
outputs:
(all ratings non-reactive)
run, preheat
positive DC, switched NO relay contact,
10 A max. @ 24VDC
start (crank)
positive DC via keyswitch contacts,
10 A max. @ 24V DC
alarm
negative DC (open collector
NPN transistor), 250mA max.
calibration/tacho
to suit 0 – 1 mA, 75 Ohm meter
output = 0.75mA at rated engine speed
adjustable settings:
preheat timer
0 or 10 secs (link J1),
default = 0 secs
fault override timer
2 to 20 secs (VR1),
default = 10 secs
overspeed trip level
100 to 130 % (VR3) of
nominal speed calibration (VR2),
default = 110% (of 50 or 60 Hz)
general:
overall dimensions (w x h x d)
96 x 96 x 95 mm / 3.8 x 3.8 x 3.7 in.
panel cut-out size
DIN 92 x 92 mm / 3.6 x 3.6 in.
weight
approx. 300 g / 0.7 lb
operating temperature
–35°C to +55°C / –31°F to 131°F
Model options
"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.
Summary
Murphy - Keystart 9620 series installation instructions 00-02-0657 revision A 22 nd September 2008 p2/4 Electrical connection to 0.5 to 1.5 mm² / 16 – 20 AW G panel wiring is by spring-clamp terminals at the rear. • pre-strip 8 to 10 mm / 0.3 to 0.4 in. of insulation from each wire. • Above each ter...
Murphy - Keystart 9620 series installation instructions 00-02-0657 revision A 22 nd September 2008 p3/4 Terminal functions (cont.) Pin Function 3 Start (crank) output Pin 3 gives a positive DC, 16 Amp rated output when the key is switched to position II (start/crank). To prolong keyswitch contact li...
Murphy - Keystart 9620 series installation instructions 00-02-0657 revision A 22 nd September 2008 p4/4 Keystart model 9621 includes a speed sensing input and automatic shutdown protection for engine overspeed faults. Before use, model 9621’s speed input must be correctly configured (using circuit-b...
