I-DRIVE TECHNICAL MANUAL – PROGRAMMING  PG DRIVES TECHNOLOGY 
2.4 Reverse Deceleration 
This parameter adjusts the value for reverse deceleration (or braking) of the machine, in increments of 1. There are two settings: 
Fast   This value is used when the slow/fast switch is set to fast. 
Slow   This value is used when the slow/fast switch is set to slow. 
The values are approximately displayed in units of 100ms and correspond to the time taken to reach standstill from full reverse 
speed, i.e. the higher the value the slower the deceleration. 
 
It is the responsibility of the machine manufacturer to ensure that the emergency stopping 
distance is within the distance specified for the country in which the machine will be used. 
 
Setting this value too low could cause the machine to tip when stopping, whilst reversing down a 
slope. 
2.5  Max. Forward Speed 
This parameter sets the MAXIMUM forward speed of the machine. 
So long as a Slow/Fast switch is fitted to the machine then there are two available settings. 
Fast   This value is used when the slow/fast switch is set to fast. 
Slow   This value is used when the slow/fast switch is set to slow. 
The value is displayed as a percentage of the machine’s total available output. Therefore if the Fast value is set to 80% then the 
machine will be able to drive at up to 80% of the total available speed when the Slow/Fast switch is in the Fast position. 
This value is adjustable between 0 and 100% in steps of 1%. 
 
If there is no Slow/Fast switch fitted then only the Fast value will be relevant. 
 
Ensure the stability of the machine is maintained, especially when cornering at the programmed 
Max. Forward Speed. 
2.6  Min. Forward Speed 
This parameter sets the MINIMUM forward speed of the machine. 
For this parameter to operate, a Speed Limiting Potentiometer must be fitted and correctly programmed. The Speed Limiting 
Potentiometer must be fitted in Parallel, refer to 
Chapter 2 Section 4.2. Under these conditions there are two available settings. 
Fast   This value is used when the machine’s Speed Limiting Potentiometer is set to Slow and the Slow/Fast switch is 
set to Fast. 
Slow   This value is used when the machine’s Speed Limiting Potentiometer is set to Slow and the Slow/Fast switch is 
set to Slow. 
The value is displayed as a percentage of the machine’s total available output. Therefore if the Fast value is set to 40% then the 
machine will be able to drive at up to 40% of the total available speed when the Slow/Fast switch is in the Fast position and the 
Speed Limiting Potentiometer is in the Slow position. 
This value is adjustable between 0 and 100% in steps of 1%. 
 
If there is no Slow/Fast switch fitted then only the Fast value will be relevant. 
 
This parameter cannot be set to a greater value than the Max. Forward Speed. 
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