J600R Instruction Manual
PST TEMS (Cont)
Additional indications can be observed if there are other faults with the setup.
1. Pump starts running and then shuts down on “Pmp” – Flat battery pack or
radiated interference between TEMS and receiver. First check your battery
charge level this is the most common problem. If the battery level is good, move
TEMS and receiver away from each other. Move TEMS battery and the receiver
battery away from each other.
2. Pump will not increment or decrement while adjusting idle and full speed – Check
that the throttle stick is at minimum while decreasing idle and at full throttle
position while increasing rpm.
3. TEMS “hangs up” while setting radio limits – This happens if you try to set the
radio throttle settings and the receiver is off or somehow the TEMS is not seeing
the R/C signal. Switch TEMS off and on again and switch R/C on and do the
settings again.
4. Pump surging – Check for proper ventilation and try circulating fuel in the pump
motor for about 10-15 minutes.
5. Idle rpm drops below 55K – If the idle rpm swings down too much and sometimes
causes flameout at idle, idle revolution needs to be increased thru Adjust Idle
Revs function. Raise the idle to 57-60K. Differentiation between Idle thrust
(residual thrust) at 55K and 60K is almost negligible.
6. No throttle response between 0-25% throttle (JR) – Set throttle trim rate to 50%.
I. Auto Start Sequences
This is how your TEMS system works. The TEMS will start and ramp the turbine up to
idle speed then release the control over to the transmitter. The basic description of the
auto start sequence and shutdown is as follows.
1. Turbine spins momentarily to 7,000 rpm to verify the battery and starter motor
capability. Note: If the turbine does not reach 7,000 rpm within 10 seconds, the
TEMS will abort the start and report “
Step Fail
” on the GDT.
2. Turbine is allowed to spool down while opening the gas feed and switching the
glow driver on.
3. At 2,000 rpm, the turbine spools back up to 7,000 rpm and then allowed to spool
down again.
4. At 2,000 rpm, the turbine spools back up to 7,000 rpm.
5. When the gas ignites, the glow circuit will be switched off and the starter motor
will be re-engaged. Note: If no ignition takes place after 4 attempts, the start will
be aborted and the TEMS will report “
Start Fail
” on the GDT. To restart, just
reset the TEMS and repeat the auto start cycle.
6. When 7,000 rpm is reached and EGT is above 110 C, the pump will start.
7. At 30,000 rpm, the starter will disengage (“M” indicates starter motor is on).
8. At 42,000 rpm, the gas will be switched off (“G” indicates gas is on).
9. The turbine is self-sustaining and will continue to ramp up to 65,000 rpm.
10. “Idle Adjust” will be displayed and the turbine speed will be reduced to 55,000
rpm.
Copyrights
©
PST Jets Co., Ltd. -
20
- Version 1.5.3.1/2005
