Schneider Electric 58 TRX User Manual

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 2000–2003 Schneider Electric All Rights Reserved

09/2003

The ATV58 Type FVC product is recommended in place of the ATV58 TRX Type H drive controllers in 
the following applications:

• Applications that require encoder feedback and the installation of an I/O extension card or a 

communication card

• Applications that require PID regulation of a process loop

• Applications requiring improved open loop torque performance at low speed

• Applications requiring high torque performance at low speed with encoder feedback

• Applications requiring holding torque at zero speed

The ATV58 Type FVC product has the following hardware not supplied with the ATV58 TRX Type H base 
product:

• Differential analog input, +/- 10 Vdc (+10 Vdc supplied from drive)

• RS422 encoder input, 5 V (max. frequency input: 200 kHz)

• Encoder power supply (5 V, 200 mA)

• A keypad is supplied with the drive controller

The ATV58 Type FVC product has the following software features not supplied with the ATV58 TRX Type 
H base product:

• Faster motor control algorithm in open loop and closed loop

• PID regulator with trim input

• Motor pre-fluxing options; continuous or by logic input

• Ability to customize the shape of the acceleration and deceleration ramps. Selectable acceleration 

and deceleration ramp increments are 0.1seconds or 0.01 seconds.

• Ability to use +/- speed trim around a speed reference input

• PI and IP mode of operation for matching initial response time vs.ability to suppress speed overshoot

• Variable torque macro has been removed. No variable torque ratings.

The ATV58 Type FVC drive controller is rated for Constant Torque (CT) applications. Constant Torque 
applications usually require motor-rated torque through the entire speed range, high transient torque 
capability, and precise speed regulation.