Curtiss-Wright | PG Drives Technology
SK77981-14
168 | R-net Technical Manual | Chapter 8 – ISM-8
When Actuator Inhibits Channel 2 is programmed in the following way the inhibit will effectively stop the backrest actuator
being moved in the Up direction when Switch 1 is open and in the Down direction when Switch 2 is open.
Up: Assign 20
Down: Assign 21
Inhibit in Band 0 no
Inhibit in Band 0 no
Inhibit in Band 1 no
Inhibit in Band 1 no
Inhibit in Band 2 no
Inhibit in Band 2 no
Inhibit in Band 3 yes
Inhibit in Band 3 yes
Application 2: A wheelchair is fitted with a reclining seat. It is required to offer a programmable angle of recline to suit different
users. A potentiometer of maximum value 10KOhm is fitted to the recline mechanism and is connected to the R-net’s Inhibit 20
input sited on the ISM-8. In this example the Backrest has been programmed to use Actuator Channel 3.
The Inhibit input must be assigned to a specific software Inhibit. As this is an Actuator Inhibit, the parameters Actuator Inhibits
Channel 3 - Up: Assign & Down: Assign should be used.
The inputs are therefore assigned to Actuator Inhibits Channel 3 as follows:
Up: Assign - Input 20
Down: Assign - Input 20
As these inputs are connected to the ISM-8 the Threshold levels must be set in the parameter Inputs - ISM-8.
By programming the Actuator Channel 3 Up Inhibit and Actuator Channel 3 Down Inhibit parameters as below, it is possible to
program the maximum angle of travel of the recline mechanism via the Inhibit 20.
Actuator Channel 3
Up: Assign 20
Down: Assign 20
Inhibit in Band 0 yes
Inhibit in Band 0 no
Inhibit in Band 1 no
Inhibit in Band 1 no
Inhibit in Band 2 no
Inhibit in Band 2 no
Inhibit in Band 3 no
Inhibit in Band 3 yes