The following chart shows the control signal values and the output voltages for each of the motor conditions.
Switch
Control Signals, Relay Board
E-base
Canopy
J37 pin 23
24V SELECT
J37 pin 26
E/H ACTIVATE
J37 pin 24
NVERTPOLARITY
J37 pin 27
E/H SELECT
J45-1
J45-2
J46-1
J46-3
Raise
canopy
0
0
1
1
NA
NA
+24V
Gnd
Lower
canopy
1
0
0
1
NA
NA
Gnd
+12V
Raise
E-base
0
0
1
0
+24V
Gnd
NA
NA
Lower
E-base
0
0
0
0
Gnd
+24V
NA
NA
None
NA
1
NA
NA
NA
NA
NA
NA
4.6.10 Rail Lift Belt Failure
The following symptoms might be observed that indicate possible rail lift belt (drive belt) failure (rail belts that
have broken rungs after extended use):
• Canopy rises slowly and sticks just when doors are opening (4-6 inches from top of canopy travel)
• Heater doors don’t open fully (lift hasn’t traveled far enough to complete door opening mechanism)
• “In transition” alarm sounds when:
• Canopy is not all the way up to activate microswitches, OR
• Heater doors aren’t fully open to activate their microswitches
If these symptoms exist, check for rail lift belt failure by doing the following:
1. Remove the canopy motor.
2. Slide up the decorative strip to expose the endcap screw. Remove the lower endcap.
3. Using a bright flashlight pointing up in the bottom of the rail, look inside the rail assembly through the
shipping lock-down screw slot near bottom of the rail. Look toward the back (North) to observe rail lift belt.
4. Manually raise and lower the canopy, slowly. (If possible, have a second person do this for you.) While
the canopy is being slowly raised and lowered, visually inspect the belt (via the screw slot) to determine
whether there are any rungs on the belt that are stripped/broken.
5. Inspect the entire belt by manually sending the canopy through its full cycle, especially the links as the belt
nears the top of upward travel.
© 2001 by Datex-Ohmeda, Inc.. All rights reserved.
6600-0343-000 104
63
Chapter 4: Troubleshooting
Содержание Giraffe OmniBed
Страница 10: ...x 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Table of Contents ...
Страница 28: ...xxviii 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved About this Manual ...
Страница 38: ...10 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 1 Functional Description ...
Страница 48: ...20 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 2 Service Checkout ...
Страница 56: ...28 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 3 Calibration and Maintenance ...
Страница 260: ...232 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 6 Illustrated Parts ...