Automation Components, Inc. 2305 Pleasant View Road | Middleton, WI 53562 Phone: 1-888-967-5224 | Website: workaci.com Page 1 Version: 3.0 I0000941 PM - ROOM Installation & Operation Instructions GENERAL INFORMATION “Particulate matter” (PM) is the general term used to describe solid particles and liquid droplets found in the air. The PM series of transmitters are designed to measure Particulates that include smoke, smog, bacteria, fine dust, liquid droplets, and report the total particle concentration of the monitored environment. ACI’s PM series transmitters utilize a laser particulate matter sensor, that is offered in two different measuring ranges. The PM series transmitters operate on a laser scattering principle, utilizing a fan sampling method. The PM2.5 is designed to detect Particles less than 2.5 μm in diameter. The PM10 is designed to detect Particles less than 10 μm in diameter. The sensor has two jumper selectable working modes for monitoring PM. The Normal Mode monitors the environment continuously and Auto Mode reduces the measuring time to extend service life. The sensor is sent default in Auto Mode. IMPORTANT PRECAUTIONS • This product uses a laser particulate matter sensor. It is strictly prohibited to be disassembled. It is dangerous if the human body is exposed to the laser directly. • If the environment exceeds the measurement range for an extended period, it may lead to a decrease of the measurement accuracy. • The performance of the sensor may be decreased due to excessive dust and oil mist, etc. in extreme environments. (ie: high humidity, high temperature) • Avoid strong light into the housing. • Avoid vibration. MOUNTING INSTRUCTIONS For optimal temperature readings, follow these tips: • Avoid air registers, diffusers, vents, and windows • Avoid confined areas such as shelves, closed cabinets, closets, and behind curtains. • Eliminate and seal all wall and conduit Phone: 1-888-967-5224 Website: workaci.com penetrations. Air migration from wall cavities may alter readings. • Do not install near heat sources. eg: lamps, radiators, direct sunlight, copiers, chimney walls, walls concealing hot-water pipesAutomation Components, Inc. 2305 Pleasant View Road | Middleton, WI 53562 Phone: 1-888-967-5224 | Website: workaci.com Page 2 Version: 3.0 I0000941 Refer to the wiring instructions to make necessary connections. After wiring, attach the cover to the base by snapping the top of the cover on first and then the bottom. Take care when mounting. Check local code for mounting height requirements. Typical mounting heights are 48-60”(1.22-1.52m) off the ground and at least 1.5’(0.5m) from the adjacent wall. The sensor should be mounted in an area where air circulation is well mixed, and not blocked by obstructions. WIRING INSTRUCTIONS PRECAUTIONS • DO NOT RUN THE WIRING IN ANY CONDUIT WITH LINE VOLTAGE(24/120/230VAC). • Remove power before wiring. Never connect or disconnect wiring with power applied. • It is recommended that you use an isolated UL-listed Class 2 transformer when powering the unit with 24 VAC. Failure to wire the devices with the correct polarity when sharing transformers may result in damage to any device powered by the shared transformer. • IF THE 24 VDC OR 24VAC POWER IS SHARED WITH DEVICES THAT HAVE COILS SUCH AS RELAYS, SOLENOIDS, OR OTHER INDUCTORS, EACH COIL MUST HAVE AN MOV, DC/AC TRANSORB, TRANSIENT VOLTAGE SUPPRESSOR (ACI PART: 142583), OR DIODE PLACED ACROSS THE COIL OR INDUCTOR. THE CATHODE, OR BANDED SIDE OF THE DC TRANSORB OR DIODE, CONNECTS TO THE POSITIVE SIDE OF THE POWER SUPPLY. WITHOUT THESE SNUBBERS, COILS PRODUCE VERY LARGE VOLTAGE SPIKES WHEN DE-ENERGIZING THAT CAN CAUSE MALFUNCTION OR DESTRUCTION OF ELECTRONIC CIRCUITS. ACI recommends 16 to 26 AWG twisted pair wires or shielded cable for all transmitters. ACI recommends using BELDEN 3105 for communication(Modbus) wiring. This wire has 120 ohm input impendence. The terminal blocks allow for (1) or (2) wires to be connected in each position for daisy chaining. Daisy chain the RS- 485 wiring and do not use “Star” or “T” wiring. Avoid running communication wires next to AC line voltage wires. These can be sources of noise that can affect signal quality. POWER SUPPLY 24VDC 24VAC RS485 VoutmA A B NO (Normally Open) Relay Output C (Common) 46Automation Components, Inc. 2305 Pleasant View Road | Middleton, WI 53562 Phone: 1-888-967-5224 | Website: workaci.com Page 3 Version: 3.0 I0000941 Notes: -P999 Reset: Once entered, rST is displayed. Press button . All factory default settings will be restored. -P161 1 Point Calibration: The current value is displayed. Press button to increase an offset. Press button to decrease an offset. The single point offset is shown. After 2 seconds, the new reading(Current Value + Offset) is shown. Press button to accept changes. - P401 Relay Settings: Once entered, the current Mode is shown. Followed by Parameter #1, Par. #2, Par. #3, Par. #4 MODE SELECTION There are two working modes, automatic mode (AUTO) and continuous mode (NORMAL). AUTO mode will automatically reduce the measuring time to extend the service life of the sensor when the dust concentration changes very slightly. Use MODE jumper to choose the mode. The factory default mode is AUTO. AUTO MODE NORMALAUTO MODE NORMAL MENU ADJUSTMENTS 1. Button definition Set/Save Bit Select/decrease Adjust/increase Users can adjust the parameters. The backlight of LCD will be off after 30s without any key’s operation. Note: the LCD will display “----” when the settings are successful, and display “Err” when failed. 2. Operation instruction Users can adjust transmitter parameters. Push button to enter programming. “P000” will be displayed. Push button to select the Column and push button to cycle 0-9 settings. Select different Codes to enter corresponding parameter group settings. Code P999 P401 P483 P484 P485 Description Factory Reset Relay Settings(see below for sub menu) RS485 Baud Rate RS485 Parity RS485 Address Default Value NA Mode:2 Set Point: 100 Dead Band: 5 On Delay: 3 (S) 9600 0(None) 1 Parameters (see below for sub menu) 4800, 9600 0(None), 1(Odd), 2(Even) 1-255 (1-32 recommended)Automation Components, Inc. 2305 Pleasant View Road | Middleton, WI 53562 Phone: 1-888-967-5224 | Website: workaci.com Page 4 Version: 3.0 I0000941 Relays parameters and descriptions: 3. System Error signal ERROR CODE Err Er4 POSSIBLE PROBLEMS Key input error The sensor’s reading is abnormal SOLUTION Input correct code Check if the sensor is in good connection with the PCB Mode 0 1 2 3 4 Mode Description Disable Relay Activate Relay Below Set Point Activate Relay Above Set Point Activate Relay Between High and Low Limits Activate Relay Outside High and Low Limits PARA. #1 N/A Set Point Set Point Low Limit Low Limit PARA. #2 N/A Dead Band Dead Band High Limit High Limit PARA. #3 N/A Actuate Delay(S) Actuate Delay(S) Actuate Delay(S) Actuate Delay(S) PARA. #4 N/A Restore Delay(S) Restore Delay(S) Restore Delay(S) Restore Relay(S) Relay OFF Relay ON Relay ON Relay OFF Relay OFFRelay OFF Low limitHigh limit Dead band Set point Relay OFFRelay ONDead band Set point Relay OFFRelay ONRelay ON Low limitHigh limit DEVICE CONFIGURATION THROUGH MODBUS RTU MODBUS RTU INTERFACE The Modbus Remote Terminal Unit (RTU) data link protocol uses EIA-485 as a two-wire, daisy chain network. A branch is a discrete chain of devices connected to a controller. The max number of devices per segment is (32), as per the Modbus specifications. 4000 ft (1219.2 m) is the maximum recommended length for a segment, which includes all devices from the controller to the last device in the daisy chain. Each branch must have all devices connected with (A) connected to (A) and (B) connected to (B). If a shielded cable is used, this is not to be connected to the devices. The shield cable should only be connected on one end to earth ground, usually at the controller. Each device must be configured for the correct baud rate and have a unique address in each branch. The baud rate for the branch is set by the controller. EOL TERMINATION RESISTANCE SELECTION RS-485 requires that the last device in a chain have a termination resistor. This is controlled using a jumper in the center and right pins(120 Ω) position marked on FIGURE 7. When the jumper is set to 120 Ω, a 120 Ω resistance is added in parallel to the data line. When the jumper is set to left and center pins(disabled), the resistance is not added. By default, the jumper is placed in the disabled position. J8 120 END OF LINE TERMINATION DISABLED END OF LINE TERMINATION ENABLED J8 120Automation Components, Inc. 2305 Pleasant View Road | Middleton, WI 53562 Phone: 1-888-967-5224 | Website: workaci.com Page 5 Version: 3.0 I0000941 A typical Modbus RTU mode message frame is shown below. In the Modbus RTU mode, the messages between frames are separated by at least 3.5 characters time’s silent interval. If the silent interval between two characters is more than 3.5 characters time, the former character was transferred successfully, and the current character’s transmission starts. MODBUS MESSAGE CRC Check 16 bits Data N x 8 bits Address 8 bits Function 8 bits Start 3.5 char End 3.5 char ADDRESS SELECTION Modbus can locate up to 256 different addresses, including valid addresses from 1-247. Address 0 is for broadcast and address 248~255 are reserved for special addresses. Slave address can be set with compatible Modbus RTU software or via Menu selection(see above for Menu Adjustments). Default address is 1. BAUD RATE, DATA BITS, PARITY, AND STOP BITS SELECTION Baud rate is set to 9600, but can also be configured to 4800 via the register or via Menu selection(see above for Menu Adjustments). The device that requests information is called the Modbus Master and the devices giving the information are Modbus Slaves. The Modbus sensors are slave devices and the number of Data Bits needs to be the same as in the Master device configuration. ACI’s Modbus RTU sensors utilize 8 data bits during communication exchange. Parity default setting is NONE. Stop bit default setting is 1. Both settings can adjusted via the register or via Menu selection(see above for Menu Adjustments). FUNCTION The function code is the second data in the frame. Valid function codes are from 0~127 (01H~7FH). See the relevant Modbus standard. It supports 03H/06H function codes, shown as the following Modbus Poll software. The detail register addresses are in: 6 General registers table. BROADCAST MODE TO WRITE DATA TO SLAVE Using broadcast mode, customer can write data to all slaves connected to the network. Address of broadcast mode to write data is 0. For example: change slave address with broadcast mode, customer can set a new slave address. Note: since this operation will modify all the addresses of the slavers to the same address, it is NOT applicable for network of more than one slave. SPECIAL MODE TO READ DATA FROM SLAVE With the special mode, customer can read the register data under the circumstance of NOT knowing the slave address. Address of special mode read data: 255(0xFF) Note: this operation is applicable for ONLY ONE slave in the network.Automation Components, Inc. 2305 Pleasant View Road | Middleton, WI 53562 Phone: 1-888-967-5224 | Website: workaci.com Page 6 Version: 3.0 I0000941 Register Address 40001, 00000 40002, 00001 40003, 00002 …… 40014, 00013 …… 40016, 00015 40017, 00016 40018, 00017 40019, 00018 40020, 00019 40021, 00020 40022, 00021 …… 40029, 00028 40030, 00029 R/W R R R R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Type Signed Signed Signed Signed Signed Signed Signed Signed Signed Signed Signed Signed Signed Product code PM2.5 Value PM10 Value RS485-Modbus RTU slave address Function register Relay Control Mode Back up Set point (mode 1 or 2) low limit (mode 3 or 4) regional Dead band (mode 1 or 2) high limit(mode 3 or 4) Start delay Stop delay Baud rate Parity Remarks PM series Product code: 9070 Default slave address =1, (RTU,9600,n,8,1) Write 40016=21845 to reset to factory default setting 1: Relay activated Below the set point. 2: Relay activated Higher than set point. 3: Relay activated in the set range 4: Relay activated outside the set range Relay control parameters set Baud rate: 9600(default) or 4800 Parity : 0: NONE, 1: ODD, 2: EVEN MODBUS RTU Note: 1. 40001 is PLC mode ADDRESS (BASE 1); 00000 is PROTOCOL ADDRESS (BASE 0). 2. Function register 40016: Use the 06 function code to write password (21845) to the register 40016 to return to the factory set.Automation Components, Inc. 2305 Pleasant View Road | Middleton, WI 53562 Phone: 1-888-967-5224 | Website: workaci.com Page 7 Version: 3.0 I0000941 PRODUCT SPECIFICATIONS Supply Voltage: 16-28VAC/16-35VDC (Reverse Polarity Protection) Output Load Resistance: 4-20 mA: 500 Ohms maximum | 0-10 VDC: 2K Ohms minimum Detection Particle Size: PM2.5: 0.3 ~ 2.5 μm | PM10: 0.3 ~ 10 μm Sensing Range: PM2.5: 0 ~ 500 μg/m3 | PM10: 0 ~ 600 μg/m3 Output: 4-20mA (Default), 0-10VDC Relay: N.O. rated 3A @ 30VDC, 3A @ 250VAC Relay Trip Point: 100 μ g/m3 Accuracy: +/- 10 μg/m3 @ 0 ~ 100 μg/m3, +/- 10% reading @ 100 ~ 500/600 μg/m3 @ 25°C/50%RH Resolution: 1 μg/m3 Response TIme: In continuous servie mode, sample time <1s, response time <10s Warm Up Time: 15 minutes Service Life: MTBF more than 3 years in continuous service mode, service life up to 8-10 years in auto (intermittent) service mode Communication Protocol: Modbus RTU; EIA RS-485 Sensor Addresses: 1-247 Support Baud Rates: 4800 or 9600 Parity: None/Even/Odd Stop Bits: 1 Data Bits: 8 Connections/Wire Size: Screw Terminal Blocks / 16 AWG (1.31 mm2) to 22 AWG (0.33 mm2) Terminal Block Torque Rating: 0.45 lbf-in (0.5 Nm) nominal Operating Temperature Range: 32 to 122°F (0 to 50°C) Storage Temperature Range: -30 to 70°F (-34 to 21°C) Operating Humiudity Range: 10 to 95% RH, non-condensing Enclosure Protection: IP30 Enclosure Material / UL Flammability: ABS Plastic / UL94V-0 WARRANTY The ACI PM Room Series are covered by ACI’s Two (2) Year Limited Warranty, which is located in the front of ACI’S SENSORS & TRANSMITTERS CATALOG or can be found on ACI’s web site: www.workaci.com. W.E.E.E. DIRECTIVE At the end of their useful life the packaging and product should be disposed of via a suitable recycling centre. Do not dispose of with household waste. Do not burn.Automation Components, Inc. 2305 Pleasant View Road | Middleton, WI 53562 Phone: 1-888-967-5224 | Website: workaci.com Page 8 Version: 3.0 I0000941Next >