Owner's manual

4-4 Setup and Commissioning

1901-UM020C-EN-P – June 2013

Setup (cont.) RF1 & RF2 Resistor Setup (cont.)

Procedure for Selection of Resistors

Discharge resistance – ___________ ohms

Sample resistance – ___________ ohms

0 % speed peak to peak voltage – ___________ V (Vpeak@0)

95% speed peak to peak voltage – ___________ V (Vpeak@95)

Induced voltage (0 % speed) – ___________ V (Vrms@0) Vp0/2.828

Induced voltage (95% speed) – ___________ V (Vrms@95) Vp95/2.828

Induced current (0 % speed) – ___________ A (Arms@0) Vrms0/Rs

Induced current (95% speed) – ___________ A (Arms@95) Vrms95/Rs

Induced voltage (0 % speed) – ___________ V I0 x Rd

Induced voltage (95% speed) – ___________ V I95 x Rd

0 speed induced voltage across the entire discharge resistor

= 50 ohms* 20 amps = 1000 volts

95% speed induced voltage across the entire discharge resistor

= 50 ohms* 12 amps = 600 volts

F1/RF2 Resistance Required ___________ Ohms