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Chapter Three – Troubleshooting Guides
56
3.14 BED EXIT SYSTEM TROUBLESHOOTING GUIDE – OPTIONAL EQUIP-
MENT
NOTE
Before proceeding, ensure the foot board is properly installed and electrical connections are made. Prior to
replacing any circuit boards, ensure applicable cables and connections are intact (visually and mechanically).
To check for +5 VDC at various points called out in the troubleshooting, use digital ground as a reference point
(negative side of C18 on CPU litter board). When measuring 110 VAC at any point, use only the neutral (white)
side of the power line as a reference point. DO NOT use digital ground as a reference point when measuring
110 VAC.
WARNING
Adding or removing objects from the bed after arming the Bed Exit system may cause a reduction in the sensi-
tivity of the Bed Exit system.
PROBLEM/SYMPTOM
SOLUTION(S)
Bed Exit does not activate and lights do not illumi-
nate.
A. Check Bed Exit keyboard (p/n 3000–508–945)
for +5 VDC at connector P1, pin 10 (see page 202
for board location). Use pin 6 as a ref. point. If
voltage is present, verify switches and LED’s are
O.K. Replace keyboard as needed.
Bed Exit does not alarm when patient leaves bed.
Without Scales Option
With Scales Option
A. Remove weight from bed and re–zero Bed Exit
by pressing and holding the Disarm switch for 5
seconds. The armed light will begin to flash. Re-
lease the Disarm switch and do not touch the bed
until the Armed light stops flashing. Placing a
weight on the bed, arming Bed Exit and then re-
moving the weight should cause Bed Exit to acti-
vate, If it does not, refer to step C.
B. Remove weight from bed and re–zero scales.
If unable to re–zero scales, place scales in diag-
nostic mode, check individual load cells (see
pages 112 &113). Replace defective load cells
(see p. 114).
C. Replace the following boards (if required) in
sequential order after verifying interconnecting
cables and locations. The listed voltages may be
checked using a voltmeter. If voltages are not
present, replace applicable board.
1.) Serial/Menu IFC Board (p/n 3000–507–957):
Connector P4, pin 7, +12 VDC (reference point,
pin 6). Connector P1, pin 10, +5 VDC (ref. point
pin 6).
2.) Serial IFC Board (p/n 3000–300–965): Con-
nector P5, pin1, +8 VDC (ref. point pin 4).
3.) Weigh CPU Board (p/n 3000–307–959): Con-
nector JP1, pin 5, +5 VDC (ref. point pin 4). Con-
nector JP1, pin 8, +12 VDC (ref. point pin 4). (See
page 115 for weigh CPU replacement).
4.) Litter CPU Board (p/n 3000–300–941): Con-
nector P12, pin1, +8 VDC (ref. point pin 4). (See
page 115 for litter CPU replacement).
Summary of Contents for Secure 3000
Page 78: ...Notes 78 ...
Page 106: ...Notes 106 ...
Page 184: ...Notes 167 2 ...
Page 241: ...Appendix B Circuit Board Locations Bed Wiring Diagrams 222 This page intentionally left blank ...
Page 243: ...Appendix B Circuit Board Locations Bed Wiring Diagrams 224 This page intentionally left blank ...
Page 249: ...DH 3 94 3000 000 020 REV B 420 Alcott Street Kalamazoo MI 49001 ...