Leelavati Automation Pvt ...

We are engaged in supplying of analog controller  Benefits of Analog Controllers

No need for PLCs, HMIs, or programming

Quick deployment: Just wire and turn a knob or apply a signal

Smooth, noise-free operation: Especially when using filtered PWM

leelavati automation 

Reliable in harsh environments: Less prone to digital EMI/ESD issues

analog motor controller is a device that regulates the operation of electric motors using continuous analog signals such as voltage (e.g., 0–10V) or current (e.g., 4–20mA). These controllers offer proportional, open-loop or closed-loop control over motor speed, torque, and direction without the need for digital programming or communication protocols.

Input Control Signals 0–10V, ±10V, 4–20mA, potentiometer input

Output Modes PWM, linear voltage, or current to drive the motor

Direction Control Forward/reverse via discrete switch inputs or analog bias

Feedback Support Tachometer, encoder (in closed-loop variants)

Motor Types Supported DC brushed, DC brushless (BLDC), universal motors

Mounting DIN rail, panel-mount, or PCB embedded

Power Ratings From 12V to 110V DC (or up to 230V AC input models)

Applications

Speed control of DC motors in conveyor belts, fans, pumps, and mixers

Manual or sensor-driven process control in HVAC, packaging lines

Retrofit or replacement of digital controllers in analog-only systems

leelavati automation 

Adjustable lab or testing rigs with potentiometer speed dials

Controller Configurations

Parameter Common Options

Input Voltage 12V, 24V, 48V, 110V DC

Output Current 1A – 30A

Control Input 0–10V, ±10V, 4–20mA, 5k pot

Output Type PWM or linear DC

Enclosure Open-frame or enclosed with heat sink

Safety Features Overcurrent, undervoltage, reverse polarity, thermal cutoff

Small DC (12–24V, <5A) PCB or compact enclosed 

Medium (24–48V, 5–10A) DIN/panel mount, 0–10V input 

Advanced (closed-loop) Analog PID controller w/ tach 

Industrial Grade Heatsink + current limiter 

Analog vs Digital Motor Controllers

Feature Analog Controller Digital Controller

Input Method Voltage/current/potentiometer PLC or HMI via Modbus/fieldbus

Ease of Use Plug-and-play, no software needed Requires programming

Precision Medium High (PID tuning, profiles)

Cost Lower Higher

Integration Basic (non-networked) Fully networked (e.g. EtherCAT)

Analog Controller Use-Cases

Potentiometer-controlled speed regulators for basic operator panels

4–20mA sensor-driven control in HVAC (e.g., air damper positioning)

0–10V driven speed control from analog PLC modules

Testing benches for motors, fans, and pumps with analog dials

Teaching labs in polytechnic colleges and industrial training institutes

Basic PWM DC controller 12–24V, 5A with knob + 0–10V Pot / 0–10V  

Industrial analog drive 24–48V, 10–20A, DIN rail mount 0–10V  

Closed-loop analog PID DC controller with encoder input ±10V  

leelavati automation