Entering Driver Spike-and-Hold
Settings
The spike-and-hold functionality is enabled by default.
To disable the spike-and-hold functionality, refer to
“Setting Up the Driver Outputs.” For technical details
about the spike-and-hold functionality, refer to Appendix
C, “Driver Spike-and-Hold Technical Data.”
1. On the MAIN screen, press F2.
2. Use the ARROW keys to highlight DRIVER SETTINGS,
then press ENTER.
3. Use the ARROW keys to highlight the setting to be
adjusted.
4. Press the INCREASE (+) or DECREASE (-) key to adjust
the setting to the desired value. Refer to the “DRIVER
SETTINGS Parameters” table for information on each
parameter.
5. Press F2 to save the setting and return to the DRIVER
SETTINGS menu.
6. Press F2 two more times to return to the MAIN screen.
Parameter
Range of Values
Description
DRV HOLD
VOLTS
Default: 5 (V)
Range: 5–24 (V, in
1 V increments)
The voltage the controller supplies to the corresponding driver after
the DRV SPIKE TIME for that channel expires.
DRV SPIKE
TIME
Default: 20 (ms)
Range: 20–250 (ms, in
5 ms increments)
The amount of time the controller supplies the spike voltage to the
corresponding driver. After the DRV SPIKE TIME expires, the voltage
is throttled down to the voltage entered for DRV HOLD VOLTS. Refer
to the VOLTS parameter under “Entering the Driver Output Settings” to
set the spike voltage.
DRIVER SETTINGS Parameters
To cancel changes at
any time and return
to the MAIN MENU,
press F3.
Setup (continued)
Risk of solenoid valve damage. If you are using dispense valve 745NC with a 24 W solenoid, Nordson EFD strongly
recommends using the spike-and-hold functionality and not exceeding a DRV SPIKE TIME of 30 ms and a DRV
HOLD VOLTS of 5 V.
CAUTION
VM9000 Controller Key Legend
INCREASE (+) key
DECREASE (-) key
ENTER key
DISPENSE key
ARROW keys
,
ENABLE/DISABLE key
ValveMate 9000 Controller
33
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