DFE WebHandler 3 Instruction Manual page 44

1. To change input and output voltages, set the SW1 switch on the V-Out Board as follows:
Figure 39 - HIGH VOLTAGE OUTPUT SWITCH SETTINGS
The SPAN and OFFSET
any adjustment. If their settings have been changed, reset them as follows.
2. Turn power on. Turn Tension on. Switch to
Connect a voltmeter to the controller output terminals along with your brake or clutch.
3. Turn both
SPAN
4. Observe the voltmeter. If it reads above zero skip to step 5. If it reads zero, turn the
slowly clockwise until a voltage reading is obtained.
5. Turn the OFFSET
6. Adjust manual set-point to 100%. If the voltage reads lower than the rated output chosen, turn the SPAN
pot (RT1) slowly clockwise until the desired voltage is obtained.
7. If the output voltage is higher than the chosen range, slowly turn the SPAN pot (RT2) count-clockwise
until the desired output is obtained.
8. Set the Manual set-point to 0%.
9. Repeat steps 4 through 8 if needed to fine tune the output level.
C. ISOLATED 10V OR 4-20mA OUTPUT (Options - I10 or I420, D Version)
The isolated output card is mounted on the Control Board. See Appendix A for board view. Make isolated
output connections as shown in Figures 10, 40. Your normal non-isolated 0 to 10Vdc output is still available
for monitoring purposes.
Figure 40 - ISOLATED 10V OUTPUT CONNECTIONS
D. NON-STANDARD SERVO VALVE DRIVER (Version C)
The use of WebHandler3 Version C allows customers to purchase a servo valve of their own choosing.
Version C includes a driver circuit card that provides a regulated +15Vdc @250mA or 24Vac to power a
servo valve, plus optional signal outputs of 0 to +10Vdc @ 2mA, or 4 to 20mA to control the servo valve
output. This driver card is mounted to the top inside of the unit.
pots (RT1 and RT2 on V-Out board) are set at the factory and should not require
and pots to midpoint.
OFFSET
pot (RT2) slowly counter-clockwise until the output drops to zero on the voltmeter.
MANUAL control mode. Adjust manual set-point to 0%.
See Figure 3 for location of this card.
38
pot (RT2)
OFFSET