07-19-B1-729 FLO-GARD 6301 DUAL CHANNEL VOLUMETRIC INFUSION PUMP SERVICE MANUAL 7-17
Troubleshooting Failure Identification Code Troubleshooting Table
70 Data in duplicate memory areas
does not agree.
Turn pump off and back on.
Check connections on CPU board.
If failure recurs, replace CPU
board.
71 Slave CPU received no data from
Master CPU.
Turn pump off and back on.
Check connections on CPU board.
If failure recurs, replace CPU
board.
72 Slave CPU received undefined
data 4 times from Master CPU.
Turn pump off and back on.
Check connections on CPU board.
If failure recurs, replace CPU
board.
73 Overcurrent to motor. Check for loose motor coupler.
Check that connector CN201
(Pump 1) or CN202 (Pump 2) are
seated firmly.
Check for loose encoder wheel.
Check for blown fuse F201 and
F202.
Apply a trace of Loctite 211 or
222 to coupling set screws and
tighten them to 5 kgf-cm
(4.3 in-lb).
Secure encoder wheel.
Plug CN201 or CN202 firmly.
Replace fuse if necessary.
Replace Sensor board.
Replace CPU board.
74 Motor slipped even though at
maximum current to motor.
Check that connector CN201
(Pump 1) or CN202 (Pump 2) are
seated firmly.
Check for loose encoder wheel.
Check for blown fuse F201 and
F202.
Secure encoder wheel.
Plug CN201 or CN202 in firmly.
Replace fuse if necessary.
Replace Sensor board.
Replace CPU board.
77 Slave CPU received no revolution
interrupt while motor was rotating.
Turn pump off and back on.
Ensure that the encoder disk is
properly secured.
Check photointerrupter outputs for
proper function.
Secure encoder disk.
Replace photointerrupters if
necessary.
Replace Sensor board. Replace
CPU board.
78 Drive defect - overinfusion. High
motor rotation against the number
of revolution counter interrupts.
See Failure Identification Code
77.
79 Drive defect - underinfusion. Low
motor rotation against the number
of revolution counter interrupts.
Ensure that pump head is clean
and rotates freely.
Check coupling between pump
mechanism and motor.
Check encoder disk for secure
mounting.
Apply a trace of Loctite 211 or
222 to coupling set screws and
tighten.
Secure encoder wheel.
Replace Sensor board.
Replace CPU board.
82 No acknowledgment message
from Slave CPU for three
communication trials.
Turn pump off and back on. If failure recurs, replace CPU
board.
Table 7-3 Failure Identification Codes — continued
Code Cause Checks Corrective Action
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