Variable speed drives

Variable speed drives for semihermetic GELPHA compressors :

Requirements: 
Precise regulation of speed to ensure a consistent end product
High starting torque demand in many applications
Maximum efficiency under all conditions
Safe operation to prevent accidents and injuries
Optidrive VFM Provides:
PM Motor control mode to allows open loop operation with Permanent Magnet motors for maximum efficiency
Maximum starting torque with standard AC motors
Better than 0.5% speed holding accuracy in Open  Loop Vector Operation
Dedicated Safe Torque Off input complies with EN62061 SIL Level 2 for safe operation

 

ADMITTED FRECUENCY RANGE 30Hz-85Hz