Checking Main Module - Invacare STORM Service Manual

16.3 Testing the Main Module

NOTE:
• The main module is maintenance-free. Only basic tests-
can be performed.
• The module is located in front under the splash
protection at the battery box retainer.
• Prior to the testing make sure that the batteries are-
charged.
Status Display
For a simple optical error determination, the module is equipped
with a green LED for status display.
Inspection of the status display:
• Switch the wheelchair on via the joystick box.
• Inspect LED (see table below).
I I n n s s p p e e c c t t i i o o n n
• Status display glowing?
• Status display off?
• Status display flashing?
Testing Preparation
• Remove batteries. See chapter 12.1 in this respect.
• Remove splash protection. See chapter 11.7 in this respect.
• Install battery boxes.
Testing Voltage Supply to Main Module
• Remove the plug of the battery cable from the main module.
• Measure the voltage existing at the voltage supply contacts
(see drawing).
All combinations between the positive and the negative poles
must be measured.
The voltage between the positive and the negative poles must
each amount to at least 19 volts.

NOTE:
Information on the use of the multimeters can be taken
from the respective User’s Manual.
CAUTION:
Malfunction
No voltage at the
contacts?
Voltage below 19 V?
R R e e m m e e d d y y
> Module is all right.
> Check the voltage supply
of the module.
Check programming.
> Replace module.
Avoid by all means a bridging of the voltage supply contacts.
>Danger of Fire and Burning<.
External battery contacts defective.
Master fuse defective.
Battery fully discharged.
Cause
Check external contacts.
Check master fuse (50 A).
Pre-charge battery.
Replace battery.
Main Module, assembled
Main Module
Main Module, disassembled
Battery cable
Status display
Battery Cable: Testing Voltage
min. 19 volts
Remedy
V V
Chapter
12.1
12.1
12.2
12.0
87