POWERELECTRONICS FOR LINEAR AND ROTARY SOLENOIDS
In general you should be aware that the solenoid's coil is an inductive load, which means caution should be taken in the form of arc suppression - also with respect to EMC behaviour; you should use a free wheeling diode; an additional Zenerdiode can be used to influence the decay time.
We offer some ready to use power electronic circuit boards for solenoids:
Pick&Hold: they provide a high current when energised (thus high force) for a defined time, after which the voltage (current) is reduce to presed limited value; this mehtod allows to reduce the average power and therefore the heating of solenoid; very often this allows to use a smaller and more costeffective solenoid; peak time, max. voltage (current) and holding voltage (current) can be set by potentiometers.
Pick&Drop: porivde a single voltage pulse for a defined time to the device, then drops the supply voltage to zero.
PWM (analog): enables the user to vary the voltage across a solenoid or other devices. The PWM output voltage is proportional to the input control voltage.
Load on/off cycling: enable the user to cycle the voltage across a solenoid; The frequency of actuation, the output peak voltage. and the duty cycle of the actuation (ratio of on time to the length of one full cycle) are adjusted using the onboard potentiometer.
Closed Loop Solenoid Position Control: offers a very low cost solution for closed loop limited angle / stroke position control with PID loop by analog feedback or incremental encoder feedback.
| type | model | voltage Vdc |
cont. current Adc |
peak current Adc |
channels | input signal |
adjustment | feedback | size open PCB mm |
information |
| Pick & Hold | PH10-300-150-36 | 20 to 36 | 0.3 | 1 | 1 | pulse 1.8Vdc (high current) 3.15Vdc (low current) analog (high to low) |
peak time peak current holding current (with 3 on board potentiometers) |
- | 62 x 34 x 22 | data sheet |
| Pick & Hold | PHI20-1000-300-100 | 20 to 100 | 0.3 | 1 | 1 | pulse 3.46Vdc (high current) 3.58Vdc (low current) analog (high to low) |
peak time peak current holding current (with 3 on board potentiometers) |
- | 62 x 34 x 22 | data sheet |
| Pick & Hold | PHI50-5000-1000-100 | 20 to 100 | 1 | 5 | 1 | pulse 2.88Vdc (high current) 3.53Vdc (low current) analog (high to low) |
peak time peak current holding current (with 3 on board potentiometers) |
- | 62 x 34 x 22 | data sheet |
| pick & hold | PH-ET-xx | 9 to 50 | 4 | 15 | 1 to 2 | pulse 3Vdc up to supply voltage |
peaktime holding voltage (with 2 on board potentiometers) |
- | 76.2 x 76.2 x 21.5 |
datasheet wiring diagram |
| pick & drop | PDD-01 | 9 to 50 | 4 | 15 | 1 | pulse 3Vdc up to supply voltage |
ontime (with on board potentiometer) |
- | 76.2 x 76.2 x 21.5 |
datasheet wiring diagram |
| proportional | PWM-xx | 9 to 50 | 4 | 15 | 1 to 2 | analog voltage 0 to 5Vdc current 4 to 20mA |
max. voltage (with on board potentiometer) |
- | 76.2 x 76.2 x 21.5 |
datasheet wiring diagram |
| cyclic on/off | LOC-01 | 9 to 50 | 4 | 15 | 1 | pulse 3Vdc up to supply voltage |
frequency output voltage on time (with 3 on board potentiometers) |
- | 76.2 x 76.2 x 21.5 |
datasheet wiring diagram |
| closed loop position control |
CLSP-xx | 9 to 50 | 4 | 15 | 1 to 3 | following encoder pulse/direction voltage 0 to 5Vdc current 4 to 20mA |
PID (mit 3 Potis on board) |
incremental encoder analog voltage (0 to 5V / 0 to 10V) |
76.2 x 76.2 x 21.5 |
datasheet wiring diagram |