
PULSE 6 SERVICE MANUAL
PAGE 3.5
SEPT 2011SUNRISE MEDICAL
Section 3
VR2 Controller Diagnostics Codes (cont.)
Nine Bars - Solenoid Brake Trip
Battery Fault
Check that the batteries are fully charged, the
correct voltage and in good condition. Take a
voltage reading from pin 1 and pin 2 of the charger
port of the VR2 controller, see (figure 3.5.2) If the
meter reads more than 30 volts, then check the
charger. Otherwise, replace your controller.
Ten Bars - High Battery Voltage
An excessive voltage has been applied to the
control system. This is usually caused by a
poor battery connection. Check the battery
connections.
Fig .3.5.2
2
1
3
The parking brakes have a bad connection. Check
the parking break and motor connections. Make
sure the control system connections are secure.
Measure the two small contacts on the four-pin
motor connector (figure 3.5.1). If both motor
connectors read approximately 60 ohms, (for
chairs prior to PLS-101619 only) then replace
the controller. Otherwise replace the motor that
does not read approximately 60 ohms.
For chairs after PLS-101619 or with serial
number prefix PLS6A, or PLS6B, it should
read ≈13.3 ohms. If both motor connections
read ≈13.3 ohms, then replace the controller.
Otherwise replace the motor that does not read
≈13.3 Ohms.
Fig 3.5.1
Figure 3.5.2 shows Motor in unlocked (free-
wheel) 9bar state.
fig. 3.5.2
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