The SE621 is a motor controller for single-phase capacitor motors with sensor monitoring and interface connection.
SE621 Schmocker motor controller
The SE621 was developed for industrial feeding systems in which conveyors or hoppers are driven by a single-phase AC motor (capacitor motor). It ensures safe switching of the motor in sensor-controlled applications.
The controller enables a soft start, reducing mechanical stress and increasing the service life of the drive system. The output voltage corresponds to the mains voltage (minus a small voltage difference); the motor current is fused up to max. 6 A.
The SE621 features an integrated 24 VDC sensor supply and supports PNP, NPN, and NAMUR sensors. Switch-on and switch-off delays are adjustable separately (0–15 s) and allow precise control of conveying processes.
An additional AIR output (24 VDC) enables control of a valve, for example for blow-off or overrun compensation. Via the INTERFACE interface, the SE621 can be connected to other SE6XX controllers or integrated into a higher-level PLC system.
The SE621 is robustly built and designed for continuous industrial operation.
Motor controller for single-phase capacitor motors
Switching motor-driven conveyors
Soft start of the motor
Reduced mechanical stress at start-up
Motor current up to 6 A
Integrated fuse protection
Sensor integration
PNP, NPN and NAMUR sensors
Integrated 24 VDC sensor supply
Switch-on/switch-off delays
Adjustable separately (0–15 s)
AIR output (24 VDC)
For controlling external valves
INTERFACE interface
Cascading and PLC connection
Robust industrial design
EMC-compliant, protection class IP20 or IP40 (depending on installation)
| Mains voltage according to rating plate | 230 V or 115 V, ±10%, 50/60 Hz |
|---|---|
| Output current mains voltage | Max. 10 A, non-fused |
| Fuse | 5 × 20 mm, max. 6.3 A super fast (FF) |
| Output current motor | Max. 6 A |
| Motor output voltage | Mains voltage -5 V |
| Motor soft start | 0.1 s |
| Sensor input | PNP 5 mA; NPN 5 mA; NAMUR <2 mA / >3 mA |
| Sensor supply | 24 VDC, max. 100 mA, short-circuit proof |
| Valve output | PNP 24 VDC, max. 100 mA, short-circuit proof |
| Lock / enable output (INTERF.LOCK) | PNP 24 VDC, max. 50 mA, short-circuit proof |
| Operating state output (INTERFACE L>) | PNP 24 VDC, max. 50 mA, short-circuit proof |
| Sensor output (INTERFACE L>) | PNP 24 VDC, max. 50 mA, short-circuit proof |
| Total current, outputs and sensor | max. 150 mA |
| Lock / enable input (LOCK) | PNP, 24 V, 10 mA |
| Time ranges ON/OFF (ON/OFF) | 0…7.5 s or 0…15 s, switchable |
| Ambient temperature | 0…+40° C during operation, -25…+70° C during transport |
| Protection class | IP20 or IP40, see safety information |
| Dimensions | 143 × 223 × 72 mm |