CME NIKI V4 Service Manual page 45

Testing Procedures
Power supply test
Prepare the pump for operation according to operation instructions (pg. ).
Separate front and rear housing according to Section 4.5. pg.52.
Set a program of 200 ml/hr and VTBI 10ml.
Use an oscilloscope and a digital testing device; connect the ground of the oscilloscope
to the ground of the pump. Connect the oscilloscope probe to U12 P16. Check if the
voltage is constant at a level between 4.9 to 5.1v. The maximal allowed ripple should be
less than 50mV.
Motor Test
Prepare the pump for operation according to operation instructions pg.
Separate front and rear housing according to Section 4.5. pg.52.
Set a program of 8999 ml/hr and VTBI 50 ml.
Use an oscilloscope and an analog testing device, connect the ground of the
oscilloscope to the ground of the pump. Connect the oscilloscope probe to U12 P20.
Check if the zero level detected while motor is in stop position is greater than 1 msec.
If the zero level is lower the torque required is too high.
Connect the analog tester to pump's ground. Measure the current between the collector
and emitter of Q12 the main current should be less than 0.35 Amp.
Watch Dog Test
Prepare the pump for operation according to operation instructions pg.
Separate front and rear housing according to section 4.5. pg.52.
Initiate motor movements when switching the pump on, the w/d the processor will stop
the motor movements by activating the w/d and display 'bad sys'.
Set a program of 200 ml/hr and VTBI 30ml. Use an oscilloscope to perform this test.
Connect the oscilloscope's ground to the pump's ground.
Connect the common line C5 and C61 to ground. The pump's motor will stop.
Immediately stop its function and audible alarm will occur and the display will show 'Err'.
Check on the same point if frequency can be detected, if not, check U1 P29 the
frequency output.
NIKI V4 Operator's Manual 45