New Piggyback Capability For High Torque Actuators
Published by
Lisa Hickey
on
New piggyback algorithm, PGB II has been developed by Belimo to allow faster runtimes and no torque loss when piggyback mounting of Multi Function Technology (MFT) versions of GM, GK, EF and AF damper actuators.
The new PGB II algorithm improves the piggyback capability on the following models: GK..24-MFT, new generation AF..24-MFT(95) for damper and valve applications and the EF..24-MFT for damper applications only. First quarter 2012 the GM..24-MFT for damper and valve applications will be available.
How PGB II Algorithm Works
The master actuator performs a "search" for a Slave actuator at power up. Once it recognizes that a Slave(s) is connected, it reconfigures the Slave to run at the same speed and provide the same feedback as the Master, regardless what it was previously programmed for.
This algorithm is only possible with MFT based actuators; this is to ensure that the actuators work in tandem correctly and efficiently to deliver 100% of the rated minimum torque by distributing the load equally between the actuators, this is currently not completely achieved with prior piggyback capable actuators.
One more important fact, once that the Master-Slave recognition is complete between the actuators, the Master will always drive the Slave with the assumption it is under load and on a single shaft. For example, imagine two people riding on a tandem bicycle. Both people are peddling in unison to achieve the sufficient amount of force to make the bike move and maintain its speed.
Benefits and Features of the New PGB II Algorithm:
One programming code for all actuators. It is no longer necessary that the control input of the Slave(s) be the same as the feedback of the Master. The new algorithm automatically recognizes that it is in a Master-Slave configuration and reconfigures the feedback of the Master and control input of the Slave(s) to 2-10 VDC.
Running times are automatically configured. The same is true with the motor running times; the Slave(s) runtime is automatically adjusted to match that of the Master by means of the new algorithm.
Adaptation can be run when piggybacked with new algorithm. This feature was not possible with PGB I. Simply push the adaptation button on the Master and they will both run an adaptation.
Fail-safe position and power fail delay settings for electronic failsafe actuators. These settings on the Slave actuator are overridden by the Master when wired for Master-Slave operation.
Learn More. " target="_blank"> >Learn More.
The new PGB II algorithm improves the piggyback capability on the following models: GK..24-MFT, new generation AF..24-MFT(95) for damper and valve applications and the EF..24-MFT for damper applications only. First quarter 2012 the GM..24-MFT for damper and valve applications will be available.
How PGB II Algorithm Works
The master actuator performs a "search" for a Slave actuator at power up. Once it recognizes that a Slave(s) is connected, it reconfigures the Slave to run at the same speed and provide the same feedback as the Master, regardless what it was previously programmed for.
This algorithm is only possible with MFT based actuators; this is to ensure that the actuators work in tandem correctly and efficiently to deliver 100% of the rated minimum torque by distributing the load equally between the actuators, this is currently not completely achieved with prior piggyback capable actuators.
One more important fact, once that the Master-Slave recognition is complete between the actuators, the Master will always drive the Slave with the assumption it is under load and on a single shaft. For example, imagine two people riding on a tandem bicycle. Both people are peddling in unison to achieve the sufficient amount of force to make the bike move and maintain its speed.
Benefits and Features of the New PGB II Algorithm:
One programming code for all actuators. It is no longer necessary that the control input of the Slave(s) be the same as the feedback of the Master. The new algorithm automatically recognizes that it is in a Master-Slave configuration and reconfigures the feedback of the Master and control input of the Slave(s) to 2-10 VDC.
Running times are automatically configured. The same is true with the motor running times; the Slave(s) runtime is automatically adjusted to match that of the Master by means of the new algorithm.
Adaptation can be run when piggybacked with new algorithm. This feature was not possible with PGB I. Simply push the adaptation button on the Master and they will both run an adaptation.
Fail-safe position and power fail delay settings for electronic failsafe actuators. These settings on the Slave actuator are overridden by the Master when wired for Master-Slave operation.
Learn More. " target="_blank"> >Learn More.