I-DRIVE TECHNICAL MANUAL – PROGRAMMING PG DRIVES TECHNOLOGY
3 Operation Parameters
3.1 Sleep Timer
If the controller detects no throttle movement for a set period of time, it can be programmed to enter a sleep state. This will be
indicated to the machine operator via the status indicator, refer to
Chapter 1 Section 8.1.4. This parameter sets the period of
inactivity before the i-Drive goes to sleep.
The time can be adjusted in 1minute steps between 0 and 20 minutes.
If the value is set to 0, the sleep function is disabled.
3.2 Throttle Invert
This parameter selects the polarity of operation of a wig-wag throttle or, on a single-ended throttle system, the polarity of drive
with the reverse switch. You can set the Throttle Invert Polarity to On or Off.
On a wig-wag system, setting Throttle Invert Polarity to Off means that if the throttle potentiometer wiper is approaching the high
reference then direction will be forwards, On is opposite to this.
On a single-ended type system, Off means that if the reverse switch input is connected to 0V then direction will be reverse, On is
opposite to this.
4 Throttle Parameters
4.1 Throttle Type
This parameter can be set to one of three types. Refer to
Chapter 2 for wiring details.
Single-ended Stands for single-ended throttle type.
Wig-wag Stands for wig-wag throttle type.
Unipolar Stands for unipolar throttle type.
4.2 Throttle Deadband
This parameter sets the amount of throttle potentiometer movement before the solenoid brake (if fitted) is disengaged and the
machine starts to drive. It is expressed as a percentage of the potentiometer full forward/reverse movement.
The following two examples cover the cases of single-ended and wig-wag throttle types.
Example 1: For a single-ended throttle, if the throttle deadband is 10% and the potentiometer is 5kΩ, then there
will be no drive until the potentiometer wiper is at the 500Ω position.
Example 2: For a wig-wag throttle, if the throttle deadband is 10% and the potentiometer is 5kΩ, then there will
be no drive when the potentiometer wiper is between the 2.25kΩ and 2.75kΩ positions.
This value is adjustable between 3% and 100% in steps of 1%, and should always be set greater than the mechanical
repeatability of the throttle mechanism.
4.3 Throttle Gain
This parameter amplifies the drive signal to the i-Drive, thus allowing throttle mechanisms that do not employ the full electrical
angle of the throttle potentiometer to be used. The parameter can be set between 5% and 1250% in steps of 5%. A value of
100% means no amplification is applied.
SK76977-07 68
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