ＭＴＬ合作伙伴：滨州新大新机电科技有限公司Part Number FunctionsMTL4501-SR 1ch DI failsafe solid-state output + LFD alarm MTL45104ch DI solid-state outputMTL4510B 4ch DI multifunction solid-state output MTL45111ch DI relay output MTL45132ch DI solid-state output MTL45141ch DI relay output + LFD alarm MTL45162ch DI relay outputMTL4516C 2ch DI with changeover relay output MTL45172ch DI relay output + LFD alarmGENERALMTL4500I/O MODULESby applicationMTL4501-SR FAILSAFE SWITCH/PROXIMITY DETECTOR INTERFACEwith LFDWith the MTL4501-SR, a fail–safe switch/proximity detector located in the hazardous area can control an isolated fail–safe electronic output. The MTL4501–SR units provide line fault detection alarm contacts. The MTL4501–SR is for use with approved fail–safe sensors.SPECIFICATIONSee also common specificationNumber of channelsOneLocation of switchesZone 0, IIC, T6 hazardous areaDiv. 1, Group A hazardous locationLocation of proximity detectorZone 0, IIC, T4–6, hazardous locationDiv 1, Group A, hazardous locationVoltage applied to sensor8.6V dc max from 1kΩInput/output characteristicsInput value in sensor circuits Fail–safeoutputOperation LFD con-tacts2.9mA < Is <3.9mA ON Normal CLOSED Is < 1.9mA & Is > 5.1mA OFF Normal CLOSED Is < 50µA OFF Broken line OPEN Rs < 100ΩOFF Shorted line OPEN Note: Is = sensor currentFail-safe electronic outputOutput on: 24V nominalOutput off: 0V dc, max < 5V dcLoad: 750Ω to 10kΩMaximum on-state current: 25mA (at 750Ω)Short-circuit current: 30mALine fault detection (LFD)LFD relay output: contacts open when line fault detectedSwitch characteristics: 35V ac/dc, 1ALED indicatorsYellow: one provided for output status, ON when fail-safeoutput is energisedGreen: one provided for power indicationRed: one provided for LFD, flashing when line fault is detected Power requirements, Vs@ Supply voltage750Ω load typ. load20V dc100mA70mA24V dc90mA60mA35V dc65mA45mAPower dissipation within unit@ Supply voltage750Ω load typ. load20V dc1232mW1160mW24V dc1392mW1200mW35V dc1507mW1335mWSafety descriptionUo = ±9.7V, Io = 30mA, Po = 0.07W, Ci = 0nF, Li = 0mHUm = 253VNote: switch-type sensors must be fitted with resistors as shownINTERFACEfour-channel, digital inputThe MTL4510 enables four solid-state outputs in the safe area to be controlled by up to four switches or proximity detectors located in a hazardous area. Each pair of output transistors shares a common ter-minal and can switch +ve or –ve polarity signals. A range of module configurations is available (see Table 1) through the use of selector switches. When proximity detector modes are selected, LFD is enabl ed and the output switches to OFF if a line fault is detected.SPECIFICATIONSee also common specificationNumber of channels4, configured by switches Location of switchesZone 0, IIC, T6 hazardous area Div 1, Group A hazardous location Location of proximity detectorsZone 0, IIC, T4-6 hazardous area if suitably certified Div 1, Group A, hazardous location Hazardous-area inputsInputs conforming to BS EN60947–5–6:2001 standards for proximity detectors (NAMUR)Voltage applied to sensor7 to 9V dc from 1k Ω ±10%Input/output characteristicsNormal phaseOutputs closed if input > 2.1mA (< 2k Ω in input circuit) Outputs open if input < 1.2mA (> 10k Ω in input circuit)Hysteresis: 200µA (650Ω) nominalLine fault detection (LFD) (when selected)User-selectable via switches on the side of the unit. Open-circuit alarm on if Iin < 50µA Open-circuit alarm off if Iin > 250µA Short-circuit alarm on if Rin < 100ΩShort-circuit alarm off if Rin > 360ΩNote: Resistors must be fitted when using the LFD facility with a contact input500Ω to 1k Ω in series with switch 20k Ω to 25k Ω in parallel with switchSafe-area outputsFloating solid-state outputs compatible with logic circuits Operating frequency: dc to 500Hz Max. off-state voltage: ± 35V Max. off-state leakage current: ± 50µA Max. on-state resistance: 65ΩMax. on-state current: ± 50mA LED indicatorsGreen: power indicationYellow: four: indicates output activeRed: indicates line fault + faulty channel’s yellow LED flashes Maximum current consumption40mA at 24V (with all output channels energised)Power dissipation within unit0.96W at 24VSafety description (each channel)V o =10.5V I o =14mA P o =37mW U m = 253V rms or dcSee Instruction Manual INM4500 for further mode information.INTERFACEfour-channel, multi-function, digital inputThe MTL4510B enables four solid-state outputs in the safe area to be controlled by up to four switches or proximity detectors located in a hazardous area. Each pair of output transistors shares a com-mon terminal and can switch +ve or –ve polarity signals. A range of module configurations is available (see Table 1) through the use of selector switches. These include start/stop operations and pulse output modes.SPECIFICATIONSee also common specificationNumber of channels4, configured by switchesLocation of switchesZone 0, IIC, T6 hazardous areaDiv 1, Group A hazardous locationLocation of proximity detectorsZone 0, IIC, T4-6 hazardous area if suitably certifiedDiv 1, Group A, hazardous locationHazardous-area inputsInputs conforming to BS EN60947–5–6:2001 standards forproximity detectors (NAMUR)Voltage applied to sensor7 to 9V dc from 1kΩ ±10%Input/output characteristicsNormal phaseOutputs closed if input > 2.1mA (< 2kΩ in input circuit)Outputs open if input < 1.2mA (> 10kΩ in input circuit)Hysteresis: 200µA (650Ω) nominalLine fault detection (LFD) (when selected)User-selectable via switches on the side of the unit.Open-circuit alarm on if Iin < 50µAOpen-circuit alarm off if Iin > 250µAShort-circuit alarm on if Rin < 100ΩShort-circuit alarm off if Rin > 360ΩNote: Resistors must be fitted when using the LFD facility with a contactinput500Ω to 1kΩ in series with switch20kΩ to 25kΩ in parallel with switchSafe-area outputsFloating solid-state outputs compatible with logic circuitsOperating frequency: dc to 500HzMax. off-state voltage: ± 35VMax. off-state leakage current: ± 50µAMax. on-state resistance: 65ΩMax. on-state current: ± 50mALED indicatorsGreen: power indicationYellow: four: indicates output activeRed: LFD indication + faulty channel’s yellow LED flashes Maximum current consumption40mA at 24V (with all output channels energised)Power dissipation within unit0.96 W at 24VSafety description (each channel)Vo =10.5V Io=14mA Po=37mW Um= 253V rms or dcSee Instruction Manual INM4500 for further mode information.MTL4511 SWITCH/ PROXIMITY DETECTOR INTERFACEsingle channel, with line fault detectionThe MTL4511 enables a safe-area load to be controlled by a switch or proximity detector located in a hazardous-area. When selected, open or short circuit conditions in the field wiring are detected by the line-fault-detect (LFD) facility and also indicated on the top of the module. Phase reversal for the channel is selected by a switch on the side of the module and output is provided by changeover relay contacts.SPECIFICATIONSee also common specificationNumber of channelsOneLocation of switchesZone 0, IIC, T6 hazardous areaDiv. 1, Group A hazardous locationLocation of proximity detectorZone 0, IIC, T4–6 hazardous area if suitably certifiedDiv. 1, Group A hazardous locationHazardous-area inputsInputs conforming to BS EN60947–5–6:2001 standards forproximity detectors (NAMUR)Voltage applied to sensor7 to 9V dc from 1kΩ ±10%Input/output characteristicsNormal phaseOutputs closed if input > 2.1mA (< 2kΩ in input circuit)Outputs open if input < 1.2mA (> 10kΩ in input circuit)Hysteresis: 200μA (650Ω) nominalLine fault detection (LFD) (when selected)User-selectable via switches on the side of the unit. A line fault is indicated by an LED. The channel output relay is de-energised if an input line fault is detected.Open-circuit alarm on if Iin < 50μAOpen-circuit alarm off if Iin > 250μAShort-circuit alarm on if Rin < 100ΩShort-circuit alarm off if Rin > 360ΩNote: Resistors must be fitted when using the LFD facility with a contactinput500Ω to 1kΩ in series with switch20kΩ to 25kΩ in parallel with switchSafe-area outputSingle pole relay with changeover contactsNote: reactive loads must be adequately suppressedRelay characteristicsResponse time: 10ms maximumContact rating: 10W, 0.5A, 35V dcLED indicatorsGreen: power indicationYellow: channel status, on when output is energisedRed: LFD indication, on when line fault is detected Maximum current consumption30mA at 24VPower dissipation within unit0.72W at 24VSafety description (each channel)Vo=10.5V Io=14mA Po=37mW Um= 253V rms or dcThe MTL4513 enables two solid-state outputs in the safe area to be controlled by two switches or proximity detectors located in the haz-ardous area. The Ch1/Ch2 output transistors share a common termi-nal and can switch +ve or -ve polarity signals. Independent output phase reversal and line fault detection are enabled via switches for each output. LFD indication is provided on the top of the module.SPECIFICATIONSee also common specificationNumber of channelsTwoLocation of switchesZone 0, IIC, T6 hazardous area Div. 1, Group A hazardous location Location of proximity detectorsZone 0, IIC, T4–6 hazardous area if suitably certified Div. 1, Group A hazardous location Hazardous-area inputsInputs conforming to BS EN60947–5–6:2001 standards for proximity detectors (NAMUR)Voltage applied to sensor7 to 9V dc from 1k Ω ±10%Input/output characteristicsNormal phaseOutputs closed if input > 2.1mA (< 2k Ω in input circuit) Outputs open if input < 1.2mA (> 10k Ω in input circuit)Hysteresis: 200µA (650Ω) nominalLine fault detection (LFD) (when selected)User-selectable for each channel via switches on the side of the unit. Line faults are indicated by an LED for each channel. Open-circuit alarm on if Iin < 50µA Open-circuit alarm off if Iin > 250µA Short-circuit alarm on if Rin < 100ΩShort-circuit alarm off if Rin > 360ΩNote: Resistors must be fitted when using the LFD facility with a contact input 500Ω to 1k Ω in series with switch 20k Ω to 25k Ω in parallel with switchPhase reversalIndependent for each channel, user-selectable Safe-area outputsFloating solid-state outputs compatible with logic circuits Operating frequency: dc to 1kHz Max. off-state voltage: ± 35V Max. off-state leakage current: ± 50µA Max. on-state resistance: 65ΩMax. on-state current: ± 50mAMTL4513 SWITCH/PROXIMITY DETECTOR INTERFACEtwo-channel, with line fault detection and phase reversal*Signal plug HAZ1-3 is required for access to this function LED indicatorsGreen: power indicationYellow: two: channel status, on when outputs are on Red: two: LFD indication, on when line fault detected Maximum current consumption30mA at 24VPower dissipation within unit0.9W typical at 24V with 10mA loads-1.2W max. with 50mA loadsSafety description (each channel)V o =10.5V I o =14mA P o =37mW U m = 253V rms or dcMTL4514 SWITCH/PROXIMITY DETECTOR INTERFACEsingle channel with line fault detection and phase reversalThe MTL4514 enables a safe–area load to be controlled, through a relay, by a proximity detector or switch located in a hazardous area. Line faults are signalled through a separate relay and indicated on the top of the module. Switches are provided to select phase reversal and to enable the line fault detection.SPECIFICATIONSee also common specificationNumber of channelsOneLocation of switchZone 0, IIC, T6 hazardous area Div.1, Group A, hazardous location Location of proximity detectorZone 0, IIC, T4–6 if suitably certified Div.1, Group A, hazardous location Hazardous–area inputsInputs conforming to BS EN60947–5–6:2001 standards for proximity detectors (NAMUR)Voltage applied to sensor7 to 9V dc from 1k Ω ±10%Input/output characteristicsNormal phaseOutputs closed if input > 2.1mA (< 2k Ω in input circuit) Outputs open if input < 1.2mA (> 10k Ω in input circuit)Hysteresis: 200µA (650Ω) nominalLine fault detection (LFD) (when selected)User-selectable via switches on the side of the unit. Line faults are indicated by an LED. Line fault relay is energised and chan-nel output relay de-energised if input line-fault detected Open-circuit alarm on if I in < 50µA Open-circuit alarm off if I in > 250µA Short-circuit alarm on if R in < 100ΩShort-circuit alarm off if R in > 360ΩNote: Resistors must be fitted when using the LFD facility with a contact input 500Ω to 1k Ωin series with switch 20k Ω to 25k Ω in parallel with switchSafe-area outputChannel: Single pole relay with changeover contacts LFD: Single pole relay with changeover contactsNote: reactive loads must be adequately suppressedRelay characteristics Response time: 10ms maximum Contact rating:10W, 0.5A, 35V dc*Signal plug HAZ1-3 is required for access to this function LED indicatorsGreen: power indicationYellow: channel status, on when output circuit is closed Red: LFD indication, on when line fault is detected Maximum current consumption35mA at 24V dcPower dissipation within unit0.72W at 24V Safety descriptionV o =10.5V I o =14mA P o =37mW U m = 253V rms or dcMTL4516 SWITCH/PROXIMITY DETECTOR INTERFACEtwo-channel, with line fault detectionThe MTL4516 enables two safe-area loads to be controlled by a switch or proximity detector located in a hazardous-area. When se-lected, open or short circuit conditions in the field wiring are detected by the line-fault-detect (LFD) facility and also indicated on the top of the module. Phase reversal for each channel is selected by a switch on the side of the module and output is provided by relay contacts.SPECIFICATIONSee also common specificationNumber of channelsTwoLocation of switchesZone 0, IIC, T6 hazardous area Div. 1, Group A hazardous location Location of proximity detectorZone 0, IIC, T4–6 hazardous area if suitably certified Div. 1, Group A hazardous location Hazardous-area inputsInputs conforming to BS EN60947–5–6:2001 standards for proximity detectors (NAMUR)Voltage applied to sensor7 to 9V dc from 1k Ω ±10%Input/output characteristicsNormal phaseOutputs closed if input > 2.1mA (< 2k Ω in input circuit) Outputs open if input < 1.2mA (> 10k Ω in input circuit)Hysteresis: 200µA (650Ω) nominalLine fault detection (LFD) (when selected)User-selectable via switches on the side of the unit. Line faults are indicated by an LED for each channel. The channel output relay is de-energised if an input line fault is detected.Open-circuit alarm on if I in < 50µA Open-circuit alarm off if I in > 250µA Short-circuit alarm on if R in < 100ΩShort-circuit alarm off if R in > 360ΩNote: Resistors must be fitted when using the LFD facility with a contact input 500Ω to 1k Ω in series with switch 20k Ω to 25k Ω in parallel with switchSafe-area outputTwo single-pole relays with normally-open contactsNote: reactive loads must be adequately suppressedRelay characteristicsResponse time: 10ms maximum Contact rating:10W, 0.5A, 35V dc*Signal plug HAZ1-3 is required for access to this function LED indicatorsGreen: power indicationYellow: two: channel status, on when output is energised Red: two: LFD indication, on when line fault detected Maximum current consumption35mA at 24VPower dissipation within unit0.84W at 24VSafety description (each channel)V o =10.5V I o =14mA P o =37mW U m = 253V rms or dcMTL4516C SWITCH/PROXIMITY DETECTOR INTERFACEtwo-channel, with line fault detectionThe MTL4516C enables two safe-area loads to be controlled by a switch or proximity detector located in a hazardous-area. When se-lected, open or short circuit conditions in the field wiring are detected by the line-fault-detect (LFD) facility and also indicated on the top of the module. Phase reversal for each channel is selected by a switch on the side of the module and output is provided by changeover relay contacts.SPECIFICATIONSee also common specificationNumber of channelsTwoLocation of switchesZone 0, IIC, T6 hazardous area Div. 1, Group A hazardous location Location of proximity detectorZone 0, IIC, T4–6 hazardous area if suitably certified Div. 1, Group A hazardous location Hazardous-area inputsInputs conforming to BS EN60947–5–6:2001 standards for proximity detectors (NAMUR)Voltage applied to sensor7 to 9V dc from 1k Ω ±10%Input/output characteristicsNormal phaseOutputs closed if input > 2.1mA (< 2k Ω in input circuit) Outputs open if input < 1.2mA (> 10k Ω in input circuit)Hysteresis: 200µA (650Ω) nominalLine fault detection (LFD) (when selected)User-selectable via switches on the side of the unit. Line faults are indicated by an LED for each channel. The channel output relay is de-energised if an input line fault is detected.Open-circuit alarm on if I in < 50µA Open-circuit alarm off if I in > 250µA Short-circuit alarm on if R in < 100ΩShort-circuit alarm off if R in > 360ΩNote: Resistors must be fitted when using the LFD facility with a contact input 500Ω to 1k Ω in series with switch 20k Ω to 25k Ω in parallel with switchSafe-area outputTwo single-pole relays with changeover contactsNote: reactive loads must be adequately suppressedRelay characteristicsResponse time: 10ms maximum Contact rating:10W, 0.5A, 35V dc*Signal plug HAZ1-3 is required for access to this function LED indicatorsGreen: power indicationYellow: two: channel status, on when output is energised Red: two: LFD indication, on when line fault detected Maximum current consumption35mA at 24VPower dissipation within unit0.84W at 24VSafety description (each channel)V o =10.5V I o =14mA P o =37mW U m = 253V rms or dcMTL4517 SWITCH/PROXIMITY DETECTOR INTERFACEtwo-channel with line fault detection and phase reversalThe MTL4517 enables two safe-area loads to be controlled, through a relay, by proximity detectors or switches located in a hazardous area. Line faults are signalled through a separate relay and indicated on the top of the module. Switches are provided to select phase re-versal and to enable the line fault detection.SPECIFICATIONSee also common specificationNumber of channelsTwoLocation of switchZone 0, IIC, T6 hazardous area Div.1, Group A, hazardous location Location of proximity detectorZone 0, IIC, T4–6 if suitably certified Div.1, Group A, hazardous location Hazardous-area inputsInputs conforming to BS EN60947–5–6:2001 standards for proximity detectors (NAMUR)Voltage applied to sensor7 to 9V dc from 1k Ω ±10%Input/output characteristicsNormal phaseOutputs closed if input > 2.1mA (< 2k Ω in input circuit) Outputs open if input < 1.2mA (> 10k Ω in input circuit)Hysteresis: 200µA (650Ω) nominalLine fault detection (LFD) (when selected)User selectable by switches on the side of the module. LIne faults are indicated by the LED for each channel.Line fault relay is energised and channel output relay de-ener-gised if input line-fault detected Open-circuit alarm on if I in < 50µA Open-circuit alarm off if I in > 250µA Short-circuit alarm on if R in < 100ΩShort-circuit alarm off if R in > 360ΩNote: Resistors must be fitted when using the LFD facility with a contact input 500Ω to 1k Ω in series with switch 20k Ω to 25k Ω in parallel with switchSafe-area outputChannel: Two single-pole relays with normally open contacts LFD: Single pole relay with changeover contactsNote: reactive loads must be adequately suppressedRelay characteristics Response time: 10ms maximum Contact rating:10W, 0.5A, 35V dc*Signal plug HAZ1-3 is required for access to this function LED indicatorsGreen: power indicationYellow: two: channel status, on when output is energised Red: two: LFD indication, on when line fault detected Maximum current consumption35mA at 24VPower dissipation within unit0.84W at 24VSafety description (each channel)V o =10.5V I o =14mA P o =37mW U m = 253V rms or dcMTL4521 SOLENOID/ALARM DRIVERloop-powered, IICThe MTL4521 is a loop-powered module which enables a device lo-cated in the hazardous area to be controlled from the safe area. The MTL4521 can drive a certified intrinsically safe low-power load, as well as non-energy-storing simple apparatus such as an LED.SPECIFICATIONSee also common specificationNumber of channelsOneLocation of loadZone 0, IIC, T4–-6 hazardous area if suitably certified Div. 1, Group A hazardous locationMinimum output voltage Equivalent output circuitInput voltage20 to 35V dcHazardous-area outputMinimum output voltage: 12.8V at 48mA Maximum output voltage: 24V from 180ΩCurrent limit: 48mA Output ripple< 0.5% of maximum output, peak to peak Response timeOutput within 10% of final value within 100ms48Output current (mA)Output voltage (V)21.412.8*Signal plug HAZ1-3 is required for access to this function LED indicatorYellow: output status, on when output circuit is active Maximum current consumption90mA at 24VPower dissipation within unit1.4W at 24V Safety descriptionV o =25V I o =147mA P o =919mW U m = 253V rms or dcWith the MTL4523 interface, an on/off device in a hazardous area can be controlled by a voltage signal in the safe area. It is suitable for driving loads such as solenoids. Line fault detection (LFD), which oper-ates irrespective of the output state, is signalled by a safe-area solid-state switch which de-energises MTL4523, or energises MTL4523R, if a field line is open or short–circuited. Earth fault detection can be provided by connecting an MTL4220 earth leakage detector to terminal 3.SPECIFICATIONSee also common specificationNumber of channelsOneLocation of loadZone 0, IIC, T4–6 hazardous area if suitably certified Div. 1, Group A, hazardous locationMinimum output voltage Equivalent output circuitHazardous-area outputMinimum output voltage: 12.8V at 48mA Maximum output voltage: 24V from 180ΩCurrent limit: 48mA Output ripple< 0.5% of maximum output, peak to peak Control inputSuitable for switch contacts, an open collector transistor or logic driveOutput turns on if input switch closed, transistor on or < 1.4V applied across terminals 10 & 11Output turns off if input switch open, transistor off or > 4.5V applied across terminals 10 & 11Response timeOutput within 10% of final value within 100ms Line fault detection (LFD)Open or short circuit in field cabling de-energises solid state line fault signal. (MTL4523R transistor is energised when line fault is detected)LFD transistor is switched on (off MTL4523R), provided that the field circuit impedance is > 55Ω and < 6k5Ω. Line fault signal characteristicsMaximum off-state voltage: 35VMaximum off-state leakage current: 10µA Maximum on-state voltage drop: 2V Maximum on-state current: 50mANote: LFD signal is Zener-diode protected against inductive loadsMTL4523/4523RSOLENOID/ALARM DRIVERwith line fault detection, IICLED indicatorsGreen: power indicationYellow: output status, on when output circuit is active Red: LFD indication, on when line fault is detected Maximum current consumption100mA at 24V dcPower dissipation within unit1.2W with typical solenoid valve, output on2.0W worst case Safety descriptionV o =25V I o =147mA P o =919mW U m = 253V rms or dc48Output current (mA)Output voltage (V)21.412.8EPS4523/4523R-5*Signal plug HAZ1-3 is required for access to this functionWith the MTL4523L interface, an on/off device in a hazardous area can be controlled by a voltage signal in the safe area. It is suitable for driving loads such as solenoids. Line fault detection (LFD), which op-erates when the output is energised, is signalled by a safe-area solid-state switch which energises if a field line is open or short-circuited. Earth fault detection can be provided by connecting an MTL4220 earth leakage detector to terminal 3.SPECIFICATIONSee also common specificationNumber of channelsOneLocation of loadZone 0, IIC, T4–6 hazardous area if suitably certified Div. 1, Group A, hazardous locationMinimum output voltage Equivalent output circuitInput voltage20 to 35V dcHazardous-area outputMinimum output voltage: 12.8V at 48mA Maximum output voltage: 24V from 180ΩCurrent limit: 48mA Output ripple< 0.5% of maximum output, peak to peak Response timeOutput within 10% of final value within 100ms Line fault detection (LFD)Open or short circuit in field cabling energises solid state line fault signalLFD transistor is switched on, provided that the field circuit impedance is > 55Ω and < 6k5Ω. Line fault signal characteristicsMaximum off-state voltage: 35VMaximum off-state leakage current: 10µA Maximum on-state voltage drop: 2V Maximum on-state current: 50mANote: LFD signal is Zener-diode protected against inductive loadsALARM DRIVERloop-powered with line fault detection, IIC*Signal plug HAZ1-3 is required for access to this functionLED indicatorsYellow: output status, on when output circuit is active Red: LFD indication, on when line fault is detected Maximum current consumption100mA at 24V dcPower dissipation within unit1.2W with typical solenoid valve, output on Safety descriptionV o =25V I o =147mA P o =919mW U m = 253V rms or dcALARM DRIVERswitch operated with override, IICThe MTL4524 enables an on/off device in a hazardous area to be controlled by a volt-free contact or logic signal in the safe area. It can drive loads such as solenoids, alarms, LEDs and other low power devices that are certified as intrinsically safe or are classified as non-energy storing simple apparatus. By connecting a second safe-area switch or logic signal, the output can be disabled to permit, for exam-ple, a safety system to override a control signal.SPECIFICATIONSee also common specificationNumber of channelsOneLocation of loadZone 0, IIC, T4–6 hazardous area if suitably certified Div.1, Group A, hazardous locationMinimum output voltage Equivalent output circuitHazardous-area outputMinimum output voltage: 12.8V at 48mA Maximum output voltage: 24V from 180ΩCurrent limit: 48mA Output ripple< 0.5% of maximum output, peak-to-peak Control inputSuitable for switch contacts, an open collector transistor or logic drive0 = input switch closed, transistor on or <1.4V applied across terminals 10 & 111 = input switch open, transistor off or >4.5V applied across terminals 10 & 11Override inputAn open collector transistor or a switch connected across ter-minals 8 and 9 can be used to turn the output off whatever the state of the control input0 = transistor on or switch closed 1 = transistor off or switch open Control and override inputsControl inputOverride inputOutput state00off 01on 10off 11offResponse timeOutput within 10% of final value within100ms48Output current (mA)Output voltage (V)21.412.8*Signal plug HAZ1-3 is required for access to this function LED indicatorsGreen: power indicationYellow: output status, on when output circuit is active Maximum current consumption100mA at 24V dcPower dissipation within unit1.3W with typical solenoid valve, output on 1.9W worst case Safety descriptionV o =25V I o =147mA P o =919mW U m = 253V rms or dc。
