Field Instruments

General

Description The IQ®41x Series Controllers have 5 inputs (3 universal, 2 digital) and 6 outputs. The IQ411 has 6 solid state digital outputs, and the IQ412 has 4 solid state digital outputs and 2 analogue voltage outputs. The IQ41x series uses Ethernet and TCP/IP networking technologies with embedded XML and is fully compatible with other Trend IQ controllers. Trend communications over a current loop LAN and support for BACnet over IP are available as options. A local PC or display (e.g. IQView4) can be connected to the RS232 port. A Wallbus port is also provided for use with room displays.

Features

• 11 onboard I/O channels - 5 inputs and 6 outputs
• Ethernet 10/100 Mbps main network with TCP/IP protocol
• Trend current loop LAN option
• Embedded XML Web Services as standard
• BACnet over IP option (certified as a BACnet Application Specific Controller)
• Wallbus for connection of room displays
• RS232 and USB local supervisor/engineering ports
• Automatic time synchronisation and daylight saving via SNTP
• DIN rail mounting, DIN 19 size 2 standard enclosure
• 230 Vac or 24 Vac input power supply options
• Features to replace IQ211, IQ212, and IQ7x Series controllers
• Retrofit mounting plate and cable extender accessories

Specifications

• Make: Trend
• Product code: IQ412-1000U500200
• Product order code: IQ412/INT/24VAC
• Controller type: Plant controllers
• Communication protocols: Bacnet | Wallbus

Electrical Data

• Power Input /230 :230 Vac ±10% 50/60 Hz at up to 40 VA /24VAC :24 Vac ±10% 50/60 Hz at up to 30 VA
• Fusing: No replaceable fuses required.
• Power Failure Protection Strategy & data :non-volatile flash memory.

 Real time clock : supercap, maintained for up to 8 days (typical).

• Clock Accuracy: 10 s per month (typical).
• Cycle Time: Sequence table 1 s.

Ethernet Network

• Transmission :10/100 BASE-T (IEEE 802.3).
• Connection :RJ45, auto MDI-X.
• Cable Type: :Cat 5e, UTP (unshielded twisted pair).
• Distance (to hub) :100 m (109 yds) maximum
• Virtual CNCs :1.
• Address :Not set by default – set to desired value in range 1 to 119 (excluding 2, 3, & 10) using configuration mode. Address must be unique on LAN.

Universal Inputs

• Function :Measuring voltage, current, thermistor
• or digital input (function set by strategy).
• Input Noise Rejection: Minimum 60 dB series mode rejection at input power supply frequency.
• Input Resolution: 12 bit (4096 steps).

Voltage Input

• Input range: 0 to 10 V.
• Input resistance: 9.4 kΩ.
• Accuracy: ±0.5% of span (50 mV).

Current Input

• Input range: 0 to 20 mA.
• Input resistance: 120 Ω.
• Accuracy: ±0.5% of span (100 μA).

Thermistor Input

• Temperature (NTC 10 kΩ @ 25°C (77°F))
• Input range :-40 to 110°C (-40°F to 230°F)
• Accuracy :±0.3°C (-20°C to 90°C (-4°F to 194°F)); ±0.4°C (<-20°C (-4°F) or >90°C (194°F))

Resistance

• Input range :0 to 200 kΩ
• Accuracy: 1% of measured value or 10 Ω, whichever is the greater.
• Bridge resistor: 12.2 kΩ.
• Bridge supply: 3.3 V.

Digital Input

• Input voltage: 0 to 5 Vdc typical (50 Vdc maximum).
• ON state :< 2.5 V @ 270 μA (sink).
• OFF state :> 3.5 V (or open circuit).
• Count rate: 30 Hz max. (pulse width ≥16.6 ms).

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