4QHF RANGE
Two-ways, high frequency and energy recovery electronic control 4QHF
Nominal operating voltage: 12-24-36-48V
Allowed operating range: 85-125%
Operating frequency: 16Khz
Acceleration and speed are under control!
The bidirectional high trequency electronic control unit with energy recovery and aided by microprocessor type 4QHF 2D has been added to the newest range.
Conceived for permanent magnete motors and realized in compliance with the most recent security provisions for the application on EC-vehicles, it is produced in a wide power range (trom 45 A up to 140 A).
This contro I unit is provided with a variable regenerative braking that can be adjusted by the operator according to his needs and acts during the vehicleʼs deceleration, reverse and by pedal release.
Technical specifications
Voltage rating: 12-24-36-48V
Allowed supply variation: 85 ÷ 125%
Operation frequency: 16Khz
Operation temperature: -20 +40°C
Humidity at 25°C: 90%
Thermal limiter action: 70-80°C
Weight 4QHF 2D 45/60 A: 350g
Weight 4QHF 2D 90/140 A: 500 g
Main Technical features
- ControI unit aided by microprocessor.
- Operation parameters adjustable through a programming display or by PC.
- Slow starting through adjustable acceleration slope.
- Settable limiter of the max. current supplied to the motor.
- Proportional action thermal limiter.
- Recovery braking system activated during deceleration, by pedal release and in reverse.
- Settable limiter of the max. braking current.
- Control system by a 5K potentiometer connected to 3 wires.
- Control system by a potentiometer connected to 2 wires with adjusting angle on request.
- Total protection against battery polarity inversion thanks to an internaI line relay.
- lntervention of the safety block in case of short circuit of the Mos units.
- lntervention of the safety block in case of potentiometer breakdown.
- lntervention of the safety block when, turning the key, the potentiometer is not on O and disabling by resetting the potentiometer to O.
Models
SIZE | STARTING CURRENT | CURRENT / MIN | CURRENT / HOUR |
45A | 45A | 40A | 18A |
60A | 60A | 55A | 21A |
90A | 90A | 81A | 32A |
140A | 140A | 121A | 48A |
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