SERIE FW50

BiDi Transmission Path
TBD-51 and TBD-56

Mutual safeguarding between tandem controls

The BiDi transmission path is, for example, an advantageous solution for the bidirectional transmission of limit switches to safeguard the joint control of cranes. Information are exchanged via one shared frequency channel only to prevent an unnecessary blocking of the frequency channels. For this purpose TELETEC utilizes the proven and recognized half-duplex procedure (HDX). The transceiver distinguishes itself by its extraordinarily compact construction and offers the necessary components to meet the criteria of category 3 PL d according to EN ISO 13849-1:2006 (additionally two separated emergency stop circuits are transmitted actively and monitored internally).

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Technical data

General data (transceiver)

Supply voltage	48 VAC, 110 VAC, 230 VAC, 50/60 Hz, 12 to 24 VDC
Power consumption	≤ 25 VA
Frequency range	433.075 to 434.750 MHz / 869.725 to 869.975 MHz
Operational temperature	-20 to +60 °C
Protection class	IP65
Dimensions (W x H x D)	160 x 260 x 91 mm
Weight	3.6 kg

Transmitter

Transmitting power	≤ 10 mW / ≤ 40 mW
Operating range	up to 300 m
Input contacts	16 potential-free input contacts with common supply (electrically-isolated inputs)
Emergency stop contacts	2 potential-free input contacts with internal monitoring of antivalence
Field bus (optional)	Profibus-DP, CAN (CANopen®)

Receiver

Output relay	16 (3 A, 250 VAC)
Emergency stop relay	2 separated circuits with one potential-free contact
Field bus (optional)	Profibus-DP, CAN (CANopen®), RS485
RF sensitivity	-112 / -108 / -100 dBm for BER ≤ 10^-7

SERIE FW50

BiDi Transmission Path TBD-51 and TBD-56

Mutual safeguarding between tandem controls

BiDi Transmission Path
TBD-51 and TBD-56