Digital Input
- Isolated Safety Barriers
- Signal Isolators
- Surge Protective Devices
- Safety Relays
- Isolated Intelligent I/O Modules
- Intelligent Gateways
- Industrial Data Optical Transceivers
- Online Dew Point Analyzers
- Data Acquisition Modules
- HART data converter
PHD-22TF-2727
Product Specifications
Isolated safety barrier at detection side: PHD-22TF-2727, digital input and output, dual input and dual output.
The isolated barrier can convert the proximity switch and contact input in the dangerous area to the relay contact signal and transmit it to the safe area.
The output relay is equipped with selection switch of "ON/OFF" situation. In addition, there is an input signal short-circuit or open-circuit alarm indication, the circuit provides power for the input sensor.
This product needs an external 20-35VDC power supply.
The signal status indicator is set in red and yellow light to indicate the working status of the output relay, when it s for alarming then the light is red, during normal operation the light is yellow.
* Bus power supply, please see appendix for details.
Product Specification
Isolated safety barrier at detection side: PHD-22TF-2727, digital input and output, dual input and dual output.
The isolated barrier can convert the proximity switch and contact input in the dangerous area to the relay contact signal and transmit it to the safe area.
The output relay is equipped with selection switch of "ON/OFF" situation. In addition, there is an input signal short-circuit or open-circuit alarm indication, the circuit provides power for the input sensor.
This product needs an external 20-35VDC power supply.
The signal status indicator is set in red and yellow light to indicate the working status of the output relay, when it s for alarming then the light is red, during normal operation the light is yellow.
* Bus power supply, please see appendix for details.
Product Specification
| Supply voltage | 20~35VDC, power consumption<1.5W |
| Input signal | Switch contact/proximity switch |
| Supply voltage from sensor side on site | 8V |
| Signal input characteristics |
On-site input current: >2.1mA, it means ON; on-site input current: <1.2mA, it means OFF
Switch hysteresis: 0.2ms
|
| Relay output characteristics | Response time: 20ms, driving capacity: 250VAC/2A, 30VDC/2A under resistive load. |
| Output "ON"/"OFF" contact conversion control |
When the dial switch K1, K3 is at "ON" side, the relay output is "OFF".
When the dial switch K1, K3 is at "OFF" side, the relay output is "ON".
When the dial switch K2, K4 is at "ON" side, the circuit selects indicating red light relay alarm function.
|
| Indicating light alarm function |
On-site input current > 7mA, short-circuit alarm (SC), on-site input current < 0.1mA, open-circuit alarm( LB)
For switch contact input, when the disconnection detection function is required, a 10KΩ resistor must be connected parallel at both ends of the switch (Please see the switch contact II in the below wiring diagram)
|
| Number of input and output | 2 input 2 output |
| Applicable field equipments | Dry contact or NAMUR proximity switch in accordance with DIN 19234 standard. |
| Temperature parameter | Working temperature: -20℃- +60℃, storage temperature: -40℃- +80℃ |
| Relative air humidity | 10%~95%RH without condensation |
| Dielectric strength | Between intrinsically safe side and non-intrinsically safe side (≥ 3000VAC/min); between power supply and non-intrinsically safe terminal (≥ 1500VAC/min) |
| Insulation resistance | ≥100MΩ (between input/output/power supply) |
| External dimensions | Thickness 12.5mm x width 108mm x high 118mm |
| Electromagnetic compatibility | According to IEC 61326-1(GB/T 18268), IEC 61326-3-1 |
| Explosion-proof mark | [Exia Ga]IIC |
| Functional safety certification | SIL3 according to IEC 61508 EN 61511 standards |
| Certification Body | CQST(China National Quality Supervision and Test Centre for Explosion Protected Electrical Products) |
| Certified parameters (between terminals 3-4,1-2) | Um=250V Uo=10.5V Io=15mA Co=1.7μF Lo=150mH Po=39.4mW |
| Installation site Requirements | It can be connected with instruments in 0 zone with ⅡA, ⅡB, ⅡC dangerous gas |
| MTBF | ≤100000h |
Terminal
Terminal assignments
9
Power supply +
20～35VDC
10
Power supply -
3
Input 1+
4
Input 1-
1
Input 2+
2
Input 2-
5
Relay output 1
6
Relay output 1
7
Relay output 2
8
Relay output 2
Terminal |
Terminal assignments |
|
9 |
Power supply + |
20～35VDC |
10 |
Power supply - |
|
3 |
Input 1+ |
|
4 |
Input 1- |
|
1 |
Input 2+ |
|
2 |
Input 2- |
|
5 |
Relay output 1 |
|
6 |
Relay output 1 |
|
7 |
Relay output 2 |
|
8 |
Relay output 2 |
|
Product Display
