Terumo BCT Trima Accel, Руководство по обслуживанию

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Linear Actuator System
A 24 V DC motor drives the linear actuator system. Two optical sensors sense the cassette tray location
and signal the logic to disable the linear actuator motor when the correct position is achieved. The
optical sensors are connected to the valve sensor CCA. If the optical sensors do not detect the
commanded linear actuator position after 8.0 seconds, the system generates an alarm. A slip clutch
allows for overdrive in the system without damaging the motor.
Note: Only one valve or linear actuator motor is driven at a time.
1
Linear actuator motor
2 Lead screw
3
Slip clutch
4 Optical sensor and
sensor flag
Figure 2-27: The linear actuator
Table 2-9: Linear actuator components
Name Function
1 Linear actuator motor A 24 V DC brushed motor that drives the linear actuator.
2 Lead screw The lead screw raises or lowers the cassette tray when the motor runs.
The lead screw can be turned manually through an access hole in the
rear door to raise or lower the cassette tray if there is a power failure.
See the operator's manual for details.
3 Slip clutch The slip clutch stops the linear actuator in case of a jam or finger
entanglement.
Linear Actuator System
Trima Accel
®
Automated Blood Collection System • Service Manual 2-37