GE Giraffe OmniBed Carestation CS1, Руководство по обслуживанию

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Chapter 5: Troubleshooting
Switches/Thermostat
5-14 Service Manual
5.3.4 Elevating Base Motor and Canopy Motor
If you must replace a footswitch when the bed is all the way down, use Pedal screen on Service screen to
raise or lower the bed.
To troubleshoot a broken canopy roll pin, run the elevating base all the way up. Take the bottom end cap off
the rail and the back panel off the electrical enclosure. Use a flash light to look up into the rail and see what
moves when the canopy slips. If the motor coupler is turning, then one of the roll pins is missing or broken.
The elevating base motor and canopy motors are driven by the same circuits. The elevating base is always
driven at 24 volts DC (acceptable range 24-32), and the canopy motor is driven at 24 volts (acceptable range
24-32) when going up and 12 volts (acceptable range 12-16) when going down.
The following chart shows the control signal values and the output voltages for each of the motor
conditions.
5.3.5 Troubleshooting the 50 Pin Ribbon Cable
All of the communication between the control and relay boards passes through the 50 pin ribbon cable.
Many of the troubleshooting procedures in this manual recommend that you verify continuity for specific
100 1353
110 1017
120 775
Temperature (°C) Resistance (Ohms)
Switch
Control Signals, Relay Board Elevating Base
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
Raise
E-base 0 0 1 0 +24V Gnd
Lower
E-base 0 0 0 0 Gnd +24V
None NA 1 NA NA NA NA
Switch
Control Signals, Relay Board Canopy
J37 pin 23
24V SELECT
J37 pin 26
E/H ACTIVATE
J37 pin 24
NVERTPOLARITY
J37 pin 27
E/H SELECT J46-1 J46-3
Raise
canopy 0 0 1 1 +24V Gnd
Lower
canopy 1 0 0 1 Gnd +12V
None NA 1 NA NA NA NA