Nilfisk-Advance 56390900 Service Manual page 22

FIGURE 3
E1
Main Control
Board (Partial)
J2-9
Speed Limit
J4-9
Pot. LO
J4-3
Pot. HI
This drawing shows additional controller input circuit detail. The R1 pot is shown in the neutral position. Resistance is measured between pot low
and pot wiper.
FIGURE 4
22 - FORM NO. 56043136 - Adgressor
A1 Speed Control
Pin Connection
16 15 14
8 7 6
WHT/YEL
YEL
VIO
Approximate R1 Voltage Values
0.87 – 2.19V Reverse
2.19 – 4.1V Forward
M -
A1
PROGRAM 2
DRIVER
KSI
16
8
MAIN
PROGRAM 1
DRIVER
/ BR 850S, BR 1050S
™
13 12 11 10 9
5 4 3 2 1
B - B +
POWER
ENABLE
MULTI
MODE
15 14 13 12 11
7 6 5 4 3
POT LOW
SPEED
LIMIT
Used (10 pins)
Not Used (6 pins)
Wheel Drive System
R1
5.75K Ohms
250 Ohms
Resistance
VIO
HI
GRA
WIPER
YEL
A 2
10 9
2 1
POT HIGH
POT
WIPER
LO