| LED connection |
Use constant-current operation to drive LEDs as recommended by the catalog. Direct connection to LEDs is suggested; use with additional LED drivers is not suitable. |
| Dimming interface |
Connect a resistance, 1–10 V DC or a 10 V PWM signal between DIM+ and DIM− at the output connector to adjust the constant-current level. Do not connect DIM− to the negative power output (−V). |
| Resistance dimming |
Typical reference: 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 kΩ correspond respectively to 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100% of rated current for one supply. For N supplies in synchronized dimming operation, divide the corresponding resistance by N: 10 kΩ/N through 100 kΩ/N. |
| Voltage dimming |
Typical reference: 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 V DC correspond respectively to 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100% of rated current. |
| PWM dimming |
10 V PWM, 100 Hz–3 kHz. Typical reference: duty cycles of 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100% correspond respectively to the same percentages of rated current. |
| Open dimming input |
The typical tables give 95–108% of rated current with the dimming input open. |
| Full-off switching |
The built-in dimming function cannot turn the lighting fixture completely dark. Use the external switch-and-relay connection shown in the catalog to turn the fixture ON/OFF and achieve 0% brightness; keep the dimming control connected across DIM+ and DIM−. The HLP-80H relay illustration labels the adjuster 0–100 kΩ, while the typical current-reference table covers 10–100 kΩ. The illustration does not establish dim-to-off at 0 Ω. |