Passage counting by induction loops
The low-cost alternative in parking space detection
For defined entrances and exits in a multi-storey parking garage, passage count-ing by means of induction loops represents a low-cost option for parking data acquisition. The IG946 is an induction pulse transmitter for the connection of up to four induction loops. It can be easily and quickly installed using plug-in tech-nology for DIN rail mounting. In addition, it includes a complete overvoltage pro-tection module. This integration minimizes the wiring effort and reduces the space requirement considerably. When using double loop systems, additional vehicle data (speed, length, direction of travel) is handed out to the service inter-face and CAN bus.
Benefits
weatherproof
construction
cost-effective
extensible
properties
simple
installation
Technical Details
| IG 946 | |
Supply voltage | 10 VDC to 38 VDC, nominal voltage 24 VDC |
Power consumption | Max. 0,7 W at 24 VDC |
Inductance range | Allowable range: 20 µH – 2000 µH |
Recommended range | 80 µH – 250 µH |
Sensitivity | 0,5% - 0,007 % (frequency change in %) |
Loop frequency | 30 kHz – 110 kHz |
Measuring time | 2,5 ms – 20 ms |
Holding time | 2 s – 12 h, ∞ |
Supply cable | A2Y (L) 2Y Zx2x0,8 ST III BD bzw. A2YF (L) 2Y Zx2x0,8 ST III BD |
Max. supply line length | 250 m |
Switching outputs | Per channel: Open Collector (not potential-free) Umax = 38VDC, Imax= 50mADC Ptot =125mW |
CAN interface | Manufacturer-specific telegram definition, speci-fication 2.0A - 11-bit identifier, basic CAN, bit rate: 10 kBit - 500 kBit, terminating resistor 120 Ω (can be activated by a switch) |