Advance acoustic 56314009, Руководство по обслуживанию

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18 - FORM NO. 56043089 - AquaRide
™
WHEEL DRIVE SYSTEM
GENERAL FUNCTIONAL OVERVIEW
See Figures 1 & 2. An 840-watt 1.1 HP (permanent magnet) 36V motor/gear transmission combination wheel unit (M3) is used to propel all
machines. A Curtis model 1228 PMC solid state speed controller (A1) regulates (outputs) the variable speed Fwd/Rev wheel drive motor functions.
The controller unit is located to the left of the operator seat, behind the electrical access panel. The potentiometer R1 mounted to the operator’s foot
pedal, inputs to the (A1) controller the machine operator’s desired speed and directional demands.
DRIVE MOTOR SYSTEM CONTROLLER FUNCTION OVERVIEW
See Figure 2. To make the A1 speed controllers internal control circuits operational (power it up) the two switches S1 (key) and S2 (seat) must be
closed. This circuit inputs a positive (+) 36V to the A1 speed controls pin terminal #5 (*KSI). The F2 circuit breaker 45 Amp supplies the positive
high current (load) circuit input to the B+ controller terminal (Brn/Blk wire). The black wire from the negative (-) battery standoff supplies the battery
ground input to the B- terminal for both the control and load circuits.
See Figure 3. Depressing the foot pedal in either Fwd or Rev will move the 5K Ohm (R1) potentiometer shaft off its centered balanced (neutral)
setting of approximately 2500 Ohms. With this pot shaft movement the pot’s resistance value changes which generates a variable voltage signal
(0-5 volts). These control board voltage input signals are what energizes the Fwd & Rev directional relays, which selects the motor polarity and what
also manages switches the battery voltage On and Off (**PWM) that varies the motor speed.
*KSI: Key Switch Input
**PWM: Pulse Width Modulation, also called “chopping” is a technique that switches battery voltage to the motor ON and OFF very quickly, thereby
controlling the speed of the motor.
DRIVE MODE SELECTION OPERATION OVERVIEW
The following is a list of the speed control parameters that can be adjusted using a Curtis hand held programmer:
There are four programmable speed limits on the AquaRide. These are transport speed, fast maintenance speed, maintnance/fast restore speed,
and restore speed. For the maintenance and restore modes, the fast speed is selected by pressing the
speed select switch* on the control
panel.
For reference purposes, the speed control parameters below are followed by a number from 1 to 4. These are used to indicate which parameters
apply to which operating mode of the machine.
Transport mode [fastest] (scrub system off) (1)
Fast Maintenance Mode (maintenance mode, speed select indicator = on) (2)
Maintenance/Fast Restore Mode (maintenace mode, speed select indicator = off (3) OR restore mode, speed select indicator = on)
Restore Mode [slowest] (restore mode, speed select indicator = off) (4)
*Speed Select Switch: This switch will allow the operator to select a faster travel speed while the scrub system is enabled thereby allowing
extracting at a higher rate of speed. The speed select indicator will be green if a scrub mode has been selected and the faster scrub speed has
been selected. It will be off otherwise.
TABLE #1
Value Curtis Display Callout Description Factory
Programmed
Values
Approximate
Travel Speed
3.0 sec ACCEL MAX SPEED
Acceleration rate [time to go from stop to maximum speed
in seconds
1, 2
3.0 sec ACCEL MIN SPEED
Acceleration rate [time to go from stop to maximum speed
in seconds]
3, 4
3.0 sec REVERSE ACCEL MAX
Reverse acceleration rate [time to go from stop to
maximum speed in seconds]
1, 2
3.0 sec REVERSE ACCEL MIN
Reverse acceleration rate [time to go from stop to
maximum speed in seconds]
3, 4
100% M1 MAX SPEED Transport speed maximum limit [% of full throttle] 1 4.2 MPH
40% M2 MAX SPEED Fast maintenance mode speed limit [% of full throttle] 2 1.4 MPH
24% M1 MIN SPEED
Maintenance/fast restore mode speed limit [% of full
throttle]
3 .8 MPH
17% M2 MIN SPEED Restore mode speed limit [% of full throttle] 4 .5 MPH
70% M1 REVERSE MAX SPEED Reverse speed maximum limit [% of full throttle] 1
30% M2 REVERSE MAX SPEED Reverse speed maximum limit [% of full throttle] 2
24% REVERSE MIN SPEED Reverse speed maximum limit [% of full throttle] 3, 4
OFF THROTTLE AUTOCAL Used for calibration of the throttle assembly