Rev 8, Dated 27-2-2018
12
Problem
7.
Elevation is correct but speed incorrect in protocol
Possible causes:
1. Treadmill and STWIN amplifier not connected on one and the
same phase.
2.
Treadmill connected on UPS supply.(It should be on stabilizer)
Solution:
1.
Note down (i) Earth to neutral voltage, (ii). Earth to line voltage,
for treadmill, PC and stwin amplifier by removing the 3-pin
power cord (Refer fig 11).
2.
If the treadmill, computer, amplifier are connected on
one and the same phase, you should get the same voltage
measurements at all 3 points.
3.
If these voltages are different at all 3 points, there is a
possibility that all the three equipments are not connected on
one and the same phase.
4.
Another possibility is that all three equipments are not
connected on one and the same earthing.
5.
Remove the treadmill from
UPS
supply and connect directly on
mains 230-volt ac supply.
6.
Hence whenever you face such problem, first of all always check
the above said voltages even though all mains supply
connections are the same as done previously.
7.
You can also refer the solution for problem no 3,4
Material
Req.
Sensor coil, TPC cable, ST-Win amplifier, silicon oil (200ml).
2) ELEVATION RELATED.
Problem
1.
No Elevation
Background:
1.
In our treadmill the function of elevation is performed with the
help of ac/dc drive and ac motor.
2.
To make treadmill understand when and to what degree it
should elevate, signals are given by the PC through our
software.
3.
A feedback mechanism is established so that the protocol and
actual elevation match.
Causes:
1.
Whenever there is no elevation then there is a problem in either
the AC/DC drive or ac motor, which elevates the treadmill.
2.
The problem lies in the feedback mechanism.
3.
The feedback mechanism consists of 10 k 10 turn pot, AC/DC
card and TPC cable.
4.
If the treadmill does not elevate, then ac motor may be jammed
due to long inactive period of 2-3 months.
Solution:
1.
Switch off treadmill, open the top cover, rotate shaft of the ac
motor manually by hand. In this way elevate the treadmill
nearly up to 3
rd
stage elevation.
Warning: Do not put any sort of oil at the shaft of ac motor to
make it free. This will burn the windings of the ac motor.
2.
Whenever there is a no elevation do the following steps:
1)
Run test treadmill program (Refer procedure 12) and
click appropriate buttons for speed increase and
decrease.
2)
Observe the LED on the back panel of STWIN amplifier
3)
If corresponding LEDs are glowing then do the next step.
But if the LED is not glowing then the problem lies with
STWIN amplifier or the calibration factors might be