Reading The Digital Inputs Of Cpu - Fresenius Medical Care 4008 E Technical Manual

5.6 Reading the digital inputs of CPU II
Explanation:
All UF displays show 0000; red, yellow, green traffic light off: low level at latch on P.C.B. LP 632
All UF displays show 1111; red, yellow, green traffic light on: high level at latch on P.C.B. LP 632
If high level is applied, an audible alarm is simultaneously sounded. This tone can be suppressed by
pressing the Alarm Tone Mute key. In this case, the Alarm Tone Mute LED is illuminated.
CPU2: RD DIGITAL INP
Confirm
key
I: CPU2_NC3
Not used
IC 4/2
I: CPU2_UF_P1
Acknowledgement, UF pump 1
IC 4/3
I: CPU2_ACKN_AIRSEP
Acknowledgement, air separation
pump
IC 4/4
I: CPU2_UF_P2
Acknowledgement, UF pump 2
IC 4/5
I: CPU2_CI
Balancing chamber switching pulse
IC 4/6
I: CPU2_V24
Acknowledgement, valve 24
IC 4/7, open/close the valve
I: CPU2_V24b
Acknowledgement, valve 24b
IC 4/8, open/close the valve
I: CPU2_V26
Acknowledgement, valve 26
IC 4/9, open/close the valve
I: CPU2_V43
Acknowledgement, valve 43
IC 5/2, open/close the valve
I: CPU2_BL_ALARM
Blood pump rate changeover SN/HDF
IC 5/3
I: CPU2_PWR_OFF
Power off
IC 5/4
I: CPU2_FL_SWITCH+5V
Float switch
IC 5/5
Generate a water deficiency in the cali-
bration mode = 0
Open V41 until water exits the vent
tubing = 1
I: CPU2_LDA1
LD alarm, channel 1
IC 5/6, LD alarm/alarm-free
Fresenius Medical Care 4008 4/08.03 (TM)
5-15