Nilfisk-Advance BA 625, Service Manual

Page: 67 / 79

FORM NO. 56043098 - Convertamatic
™
24, 26, 28, 32 / BA 625, 725, 825 - 65
ELECTRICAL SYSTEM
MAIN CONTROL PROGRAMMING OPTIONS
Selection of Low Voltage Cutout Threshold:
FACTORY DEFAULT: 20.6V (STANDARD)
The Convertamatic / BA 625 series is equipped with a low voltage cutout feature to prevent over-discharging the batteries. This feature will automatically shut down
the scrub system when the battery voltage falls to the selected threshold. The cutout level is adjustable. The Standard setting is 20.6 volts (1.72 volts per cell) and
the alternate (Gel Cell) setting is 21.6 volts (1.81 volts per cell). Select the proper cutout level based on the battery manufacturer’s speci
fi cations. It is important
to note that some maintenance free batteries (including some gelled electrolyte cells) are capable of being safely discharged down to 1.72 volts per cell. To select
between the two cutout levels:
1 Turn the main power key switch to the off position.
2 Press and hold the scrub system off switch.
3 While holding the scrub system off switch turn the main power key switch to the on position.
4 Continue to hold the scrub system off switch until the scrub off indicator turns red.
5 Release the scrub off switch.
6 The status display will now show “20.6V” or “21.6V” and battery icon on the right top corner indicating that you are in battery voltage cutout selection mode.
Depending on current setting, scrub on yellow indicator will turn on green.
7 Pressing and releasing the scrub on switch will now select between the two options. Green indicator will toggle between two options and display will be updated
same time. For the standard cutout level (factory default), select “20.6V”. For the alternate cutout level, select “21.6V”.
8 To save the new setting, press scrub off switch. Scrub off indicator will turn to Green and display will show key switch icon to reset the machine. Turn the main
key switch to the off position.
9 The new setting will be saved and will remain in effect until it is changed again.
Recall of Stored Error Codes:
Whenever the main control unit detects an electrical system fault, one or more error codes are displayed and stored by the control unit. If it is desired, the error code
(if any) from the previous operation of the machine can be recalled for troubleshooting purposes, To recall the last stored error codes perform the following steps:
1 Turn the main power key switch to the off position.
2 Press and hold the solution switch.
3 While holding the solution switch, turn the main power key switch to the on position.
4 Continue to hold the solution switch until the solution indicator turns green.
5 Release the solution switch.
6 Wrench icon will be displayed on right top corner of the display indicating you are in fault recall mode.
7 If there were previously no error codes stored, the display will show key switch icon asking you to reset the machine. (No fault). Go to step 11.
8 If error codes were stored, the display will show wrench icon and error number right next to the wrench. The scrub system off indicator will now be red. If there
are more than one error codes stored. It will toggle through all the error codes stored.
9 To clear the stored codes press scrub off switch. The display will now show key switch icon asking you to reset the machine.
10 If it is desired to save the codes, go to step 11.
11 To exit the error code recall mode, turn the main power key switch to the off position.
revised 2/07