Vision Fitness Vision series Service Manual page 26

Note:
over 26 Amps when lit
Note:
a control command
from the PCB to the
MCB
MCB LED Indication
MTR
Power Direct Current supply for the motor
(B+) is online. This light will remain lit for a period of time
after power has been removed from the MCB. While the MTR
light remains lit, anyone handling the MCB should use caution
since there is still a hazardous potential present. When the
MTR light is off, B+ is not present and the motor controller will
not operate. If the MTR and I-limit lights are off, verify motor
connections and proper motor operation. If the MTR light is
off and the I-limit light is on, the MCB shut off due to an
extended current limit condition. In this case, resetting the PCB
or cycling power will eliminate the problem. However, the
treadmill should be thoroughly examined for wear or damaged
components which might have lead to the extended current limit
condition. If this problem persists, return the board to JMI.
I-limit
point of 26 Amps. The MCB will limit the current when the
current limit point has been reached. If the current limit
continues for roughly 5 seconds, the MCB shuts down and the I-
Limit light will remain on. To reset the I-Limit, turn the
treadmill off at the power switch wait about 30 seconds then turn
the power back on.
PWM
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.
5-2
Light- When lit, indicates the High
Light- When lit, indicates the current to
the motor has reached the peak current trip
Light- Indicates the control PWM from
the PCB is present. It will blink at the
Revision: 1.0 Date: 2001-06-01