Johnson JET 6000, Руководство по обслуживанию

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MCB LED Indication
Note:
Motor power
Note:
u
over 25 +- 3 Amps
when ILT2 is lit
u
under 25+- 3 Amps
when ILT1 is lit
If ILT1 is not lit,
check the fuse.
Note:
A control
command from the
PCB to the MCB
Light-
When lit, indicates the Start
key has been pressed and the K1 relay
has been activated, which will then allow the AC power to be present
to the control board with the two big capacitors on it. If the MOTOR
light is not lit after the Start key has been pressed, check the keypad,
the 8-pin cable and the interconnection of the wiring mentioned
above. If the problem persist, return the board to JMI.
Light-
When ILT1 is lit, indicates
the current to the motor is under 25
+- 3 Amps. When ILT2 is lit, indicates the current to the motor has
reached the peak current trip point of 25 +- 3 Amps. The MCB
might be broken down if the over-current situation persists for a
while. It is recommended that the treadmill should be thoroughly
examined for wear or damaged components, which might have lead
to the extended current limit condition. Besides, treadmill might have
to be re-waxed at this time.
Light-
Indicates the control PWM
from the PCB is present. It will
blink at the control frequency used by the PCB when the PCB
commands speed. If the control signal should exceed 95 percent
duty cycle, the PWM light shuts off and sets the MCB to a safe
shutdown mode. In the event this should occur, the power to the
treadmill should be removed, the cabling checked for shorts and the
PCB replaced. If this problem persists, replace the MCB.
MOTOR
ILT1/ILT2
M.C.SIG
5-1 Revision: 1.0 Date: 2001-06-01