ERP VZM vzmoso 60W
vzmoo 90w
Series
Efficient, Compact CV Class 2 LED
Programming Wand
I
Mfg. Model Mfg. Model Mfg. Model
Lutron NFTV Lutron DVTV Lutron DVSTV
Lulron RMJS-BT Lightolier SR1 QODZTUNV Cooper SF10P-W
Leviton |P7107LFZ Leviton |F7107DL -
6
Efficient, Compact CV Class 2 LED
Drivers with 0-10 V Dimming
SaveEnergy@erp-power.com www.erp-power.com
6 - 0-10 V DIMMING CONTROL (@25ºC ambient temperature) (CONTINUED)
The VZM series operate only with 0-10 V dimmers that sink current. They are not designed to operate with 0-10 V
control systems that source current, as used in theatrical/entertainment systems. Developed in the 1980’s, the 0-10 V
sinking current control method is adopted by the International Electrotechnical Commission (IEC) as part of its IEC
Standard 60929 Annex E.
The method to dim the output voltage of the driver is done via the +Dim/-Dim Signal pins. The +Dim/-Dim Signal pins
respond to a 0 to 10 V signal, delivering 65% to 100% of the max output voltage based on rated voltage for each
model. A pull-up resistor is included internal to the driver. When the +Dim wire (purple) is short circuited to the –Dim
wire (grey) or to the –LED wire (blue), the output voltage turns off.
If the +Dim input is > 10 V or open circuited, the output voltage is programmed to 100% of the rated voltage.
When not used, the –Dim wire (grey) and to the +Dim wire (purple) can be individually capped or cut off. In this
configuration, no dimming is possible and the driver delivers 100% of its rated output voltage.
The maximum source current (flowing from the driver to the 0-10V dimmer) supplied by the +Dim Signal pin is ≤1mA.
The tolerance of the output voltage while being dimmed is +/-8% typical until down to 1.5 V.
The non-linear curve is recommended when using standard in wall 0-10 V logarithmic dimmers to avoid having
insufficient source current available to pull the dimmer up to 10 V and to account for the inability of the dimmer to pull
below approximately 0.9 V. In these type of installations, the modified transfer function will provide 100% voltage
output and dimming to 1%, regardless of the number of drivers on the 0-10V dimming line.
Optimal dimming performance is achieved through balancing the output voltage to the LED load, which can be done
using the ERP Driver Configuration Tool. Instead of using the default maximum and minimum output voltages, the
user can specify a different maximum and minimum output voltage inside that range. Use the following steps to
achieve optimal dimming performance:
1. Determine operating voltage. This will most likely be 24 or 48 V. A lower voltage can be used if desired for thermal
performance, extended LED lifetime, etc.
2. Measure the minimum voltage at which the LED produces light to 0.1 V precision.
3. Use the programming software to set the operating and minimum voltage of the VZM in the ”Operating Voltage”
and “Minimum Dimmed Voltage” fields, respectively.
4. Choose desired dimming profile from drop down menu, or define a custom dimming profile.
5. Click “Program” button, and click “Add Connected Driver Program to Database” button for use in lot
programming.
7 - COMPATIBLE 0-10 V DIMMERS
Programming Wand
Part number: NFC_WAND