Railway and Industrial Application Solution for Monitoring Voltages from 50 – 4200 V AC/DC

ProLine P 52000 VPD detects the presence of voltage. The input signal is compared to a threshold value and the resulting binary information is galvanically isolated and transmitted to the output circuit. When the input voltage exceeds the set threshold value, a solid state relay opens, signaling the presence of voltage at the input. The signal of the solid state relay can control a hardware relay, for example, or be fed into a safety device or controller. The signal levels are based on type 1, EN 61131-2 PLC signal inputs. The threshold value applies regardless of the sign of the input voltage’s absolute value. In other words, the solid state relay will be triggered as soon as the positive threshold value is exceeded or the input voltage is below the negative threshold. 10 default threshold values can be selected using the rotary switch on the front of the device. Units with user-defined values are also available.   Standard/Directive | Industry Standards EN 50155, RIA12/1984 Broad-range power supply 24 … 230 V DC/AC, stable during brownouts – Class S2 EN 45545-2a) Fire protection (HL 3) EN 50155 Use on rolling stock EN 50155, EN 50125-1, EN EN 50125-2 Temperature class TX (-40 … +85 °C) and altitude class AX (2000 m or 4000 m AMSL) EN 50123-1 Use in traction power substations EN 61709 Reliability EN 61140 Protection against electric shock EN 61373 Resistant to vibration and mechanical shock (railway applications) EN 50121-1, EN 50121-3-2; EN 61326-1 EMC for railway applications and industrial applications EN 50153 Protective measures against electrical hazards (contact protection through protective covers; housing IP protection: IP54 high-voltage side, IP33 low-voltage side) EN 50124-1, EN 50123-1, EN 50178 Isolation coordination for railway and industry

The P45000-series transducers are designed for measuring high DC and AC voltages on heavy vehicles, especially rolling stock. Application examples include the monitoring and control of traction motors or the monitoring of DC link voltage in traction power converters or on-board power converters.

The voltage measurement input is highly isolated from output and auxiliary power. The current output is compatible with commercially available control inputs.

The housing offers flexible mounting options: upright or horizontal, screwed or snapped onto 35 mm DIN rails. The devices can even be mounted in a stack, allowing for very tight space requirements.

For the first time, applications with functional safety requirements can be properly carried out. The high-voltage transmitter is certified for use in SIL2 systems and, redundantly, SIL3. Thus, for example, the presence of dangerously high voltages can be reliably detected.