Enerlites MPC-50VD Installation Instructions

Enerlites MPC-50VD: 360° Passive Infrared Line Voltage Occupancy Sensor with 0-10V Dimming

The MPC-50VD is a 360° occupancy sensor utilizing advanced Passive Infrared (PIR) technology. It automatically turns lights on when motion is detected and maintains them until no movement is sensed for a preset time delay. The sensor offers four operating modes to suit various space conditions and Title 24 requirements.

Specifications

• Dimmable Ballasts or LED Drivers: 1-10VDC
• Resistive Load: 10A
• Motor Load: 1/4 HP, 120VAC, 60Hz
• Electronic Ballast: 800VA-120VAC / 1385VA-277VAC, 60Hz
• Operating Temperature: 32°F to 131°F (0°C to 55°C)
• Adjustable Light Level: 10FC - 150FC
• Adjustable Time Delay: 15 sec. - 30 min
• PIR Adjustment (Sensitivity): 25% to 100%
• Coverage: Up to 1200 sq ft

Location and Coverage

Mount the device in a location free from obstructions such as furniture, plants, or walls, and away from vibration. Ensure the sensor is mounted a minimum of 4 feet away from any air vents and avoid proximity to heat sources. When mounting directly to a ceiling light fixture, the sensor's lens must be positioned below the fixture's lowest point.

The MPC-50VD is designed for optimal performance at a ceiling height of approximately 8-10 feet. The sensor's umbrella-shaped coverage pattern may result in reduced range and sensitivity if mounted significantly above or below this recommended height. It is not necessary to cover every square inch of a room with sensor detection.

Figure 1 Description: This diagram illustrates the sensor's coverage pattern. When mounted at a height of 8 feet, the MPC-50VD provides a 360° detection area with a diameter of approximately 22 feet, covering up to 1200 square feet. The sensor detects heat-emitted movements, and the detection level can be affected by obstructions and minor movements.

Helpful Hints for Installation

• Ensure the sensor's view is not obstructed by doors when they are open.
• Program a longer time-out period to prevent lights from cycling on and off too frequently.
• Avoid mounting sensors close to air vents.
• Ensure main walkways are within the sensor's coverage area.
• Try to avoid positioning the sensor to look directly out of a doorway.

Open Office or Classroom Area Coverage

• For complete coverage in open office or classroom areas, install multiple sensors, ensuring at least 15% overlap between adjacent sensors' coverage areas.
• Position sensors to cover primary occupant workstations, entrances, and any other high-traffic zones.

Wiring Directions

WARNING: Turn the [power-symbol] POWER OFF at the circuit breaker before installing the sensor.

Read and understand these instructions before installation. This device is intended for installation in accordance with the National Electric Code and local regulations. It is recommended that a qualified electrician performs this installation. Ensure power is off at the circuit breaker or fuse(s) before wiring. Use copper wire only, or equivalent.

Connections

• Connect the Hot wire to the Black wire on the sensor.
• Connect the Load wire to the Red wire on the sensor.
• Connect the Neutral wire to the White wire on the sensor.
• Connect the Purple/Grey wires to the dimmable 0-10V LED electronic ballast.

Wiring Diagram Description: The diagram shows the sensor's wiring terminals: Black for Hot, Red for Load, White for Neutral, and Purple/Grey for the 0-10V dimming connection to an LED electronic ballast.

Sensor Adjustment

Light Level Adjustment

The sensor's light level sensitivity can be adjusted to match the ambient light conditions. Turn the dial towards the '-' symbol to enable the sensor to detect motion and operate in low light or darkness. Turn the dial towards the '+' symbol for the sensor to operate when there is more ambient light, including daylight. Note: The light level adjustment is only active when the time delay is set at or above 30 seconds.

Sensor Adjustment Controls

Figure 2 Description: This figure illustrates the sensor's adjustment controls and mounting features. Keyhole slots are shown for mounting to a 4" octagonal box. The PIR lens and the PIR Activity LED (Red) are visible. The adjustment dials include Time Delay, Range (Sensitivity), Light Level, and Modes. A double gang mudring mounting hole is also indicated.

• Time Delay Adjustment: This dial sets the duration the lights remain on after motion is no longer detected. The default position is 15 seconds (Test mode). The adjustment range is from 15 seconds to 30 minutes (clockwise).
• Sensor Sensitivity (Range Knob): This dial adjusts the sensor's detection range. The default position is 25% (Position 1). It is adjustable from 25% (Position 1) to 100% (Position 4). Turn the knob to the right for greater room coverage, and to the left to avoid false alerts in smaller rooms or near heat sources and doorways.
• Ambient Light Level Knob: This dial sets the threshold for ambient light at which the sensor will activate. The default position is Daylight (100%, Position 4). Turning to Position 1 sets the threshold at 300 lux. Turning to Position 4 allows the sensor to control lights by PIR regardless of ambient light. Turning to 90% of the full range (Position 3) sets the threshold at 4000 lux.
• Operating Modes Knob: This knob selects one of four operating modes:
  • Mode 1: Light turns ON by PIR, output is 10V. Auto OFF by preset time delay.
  • Mode 2: Light turns ON by PIR, output is 5V. Auto OFF by preset time delay.
  • Mode 3: Light turns ON by PIR (10V output). After the time delay expires, output reduces to 5V. If no motion is detected for 30 minutes, lights turn off. Motion detection within 30 minutes reverts the sensor to its original Mode 3 state.
  • Mode 4: Light turns ON by PIR (10V output). After the time delay expires, output reduces to 5V. Lights remain on indefinitely at 5V output if no motion is detected for 30 minutes. Motion detection within 30 minutes reverts the sensor to its original Mode 4 state.

Installation Methods

Using an Octagonal J-box (not included)

1. Pull high voltage wires into the J-Box through the conduit knockout.
2. Connect high voltage wires to the appropriate terminals on the sensor.
3. Loosen the appliance mounting screws attached to the J-Box.
4. Align the sensor to the J-Box, matching the mounting screws to the keyhole slots on the sensor's Main Body.
5. Push the sensor up into the J-Box and twist to seat the mounting screws in the keyhole slots.
6. Tighten the two screws to secure the sensor to the J-Box.
7. Snap the front cover onto the sensor.

Quick Installation Method

This method uses an adapter for quick mounting.

1. Pull the line and load wires into the sensor's adapter through the 1/2" threaded nipple.
2. Connect the line voltage wires to the appropriate leads on the sensor.
3. Feed the Purple/Grey wires through the 1/2" threaded nipple to the LED ballast.
4. Align the sensor to the adapter, ensuring the two side mounting latches match, then snap it into place.

Mounting Options

• MPC-A Auxiliary Mounting Adapter: Allows mounting the ceiling sensor onto boxes such as 4" and 5" square junction boxes. Compatible with MPC-50V/L, MDC-50V/L.
• MPC-B Auxiliary Mounting Adapter: Converts the ceiling sensor for surface mounting with a quick installation method. Compatible with MPC-50V/L, MDC-50V/L.

Sensor Settings and Testing

Sensor Settings

Refer to the 'Sensor Adjustment' section for details on setting the Time Delay, Sensor Sensitivity, Ambient Light Level, and Operating Modes.

Testing Occupancy Sensor

Note: There is a 40-second warm-up period when power is first applied. Use a small screwdriver to open the front cover to make setting changes. The pre-set time delay is Test mode, and the light level is set at maximum for initial testing.

Test Procedure

1. Ensure the PIR Activity LED is enabled (flashing blue and white).
2. Ensure the Time Delay is set for Test Mode.
3. Ensure the Light Level is set to the maximum position (refer to 'Light Level Adjustment').
4. Remain still. The blue LED should not flash, and the lights should turn off after approximately 15 seconds. If not, consult the 'Troubleshooting' section.
5. Move within the sensor's coverage area. The lights should turn on automatically.
6. Once the functional test is complete, set the Time Delay, Range, Mode, and Light Level to the desired settings, and replace the front cover onto the sensor.

Troubleshooting

LED Does Not Blink

• Verify that the circuit breaker has been turned back on.
• Ensure the PIR Sensitivity Range is set to 100% (Position 4).
• Check all wire connections for proper installation.

LED Blinks but Lights Do Not Turn ON

• Check the 'Light' setting. If the arrow points to the '-' position, the area must be dark enough for the sensor to operate. Cover the light sensor lens to simulate darkness. If the lights turn on, the light level setting needs adjustment.
• Confirm that wires are connected correctly and that the bulbs are functional.
• Check for any obstructions covering the sensor's lens.
• Ensure power to the sensor has been continuously applied for at least one minute to complete the warm-up period.

Lights Do Not Turn OFF Automatically

• If the LED blinks without detected motion, check for nearby sources of infrared energy (heat) in motion, such as turbulent air from heating or cooling vents. Mount the sensor so its lens is below the fixture edge and does not directly view lamps, or reposition the air supply or sensor.
• Verify the time delay settings are correctly configured and that no movement is detected within the sensor's view for the set duration.

Lights Do Not Dim Automatically

• Check the sensor wire connections, specifically ensuring the Purple/Grey wires are connected to the LED ballast.
• Verify the selected sensor operation mode.

Warranty Information

This device is warranted to be free of material and workmanship defects for 2 years from the date of purchase. An original receipt or proof of purchase from an authorized retailer is required for warranty claims. All claims must be verified and approved by Enerlites, Inc. Warranties for other Enerlites products may differ. This warranty is non-transferable and does not cover normal wear and tear, or malfunctions resulting from misuse, abuse, neglect, alteration, modification, or improper installation. To the fullest extent permitted by applicable state law, Enerlites is not liable for direct, indirect, incidental, or consequential damages, even if advised of the possibility. Enerlites' total liability is limited to repair, replacement, or refund.

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