Position measurement KL5101 Position measurement | Incremental encoder interface The KL5101 Bus Terminal processes differen- 1-channel incremental encoder interface, tial signals according to the RS422/RS485 16 bits, differential inputs, RS485 standard. This transmission type is particularly resistant to interference and is suitable for high transmission frequencies. The KL5111, Technical data KL5101 | KS5101 KL5151 and KL5152 Bus Terminals have a single-ended input and are simple to wire up. Technology incremental encoder interface (RS485) The signal frequencies from less time-critical applications can be processed using these Number of channels 1 incremental encoder + 1 input terminals. All incremental encoder terminals use Encoder connection A, A (inv), B, B (inv), zero, zero (inv), a quadrature decoder. Gate and latch inputs difference signal (RS485); status input enable pre-processing in the Bus Terminal in order to be able to transfer positional values +60 °C to the controller exactly upon an external -25 °C event and thus support the referencing of a drive. The KL5101 and KL5111 make a period 15 1’ 5’ duration measurement available with a resolution of 200 ns. Rotary speeds can thus 26 2’ 6’ be determined directly, since a calculation of the speed by means of position differences in 37 3’ 7’ the controller is in many cases not accurate enough due to jitter. The KL5152 contains two encoders and 48 4’ 8’ 592 provides a particularly inexpensive solution for a large number of channels if gate and The KL5101 terminal is an interface for the direct connec- latch functions are not needed. tion of incremental encoders with difference signal (RS485) The LEDs on the Bus Terminals indicate or with single inputs. A 16 bit counter with a quadrature the states of the input signals for better decoder and a 16 bit latch for the zero pulse can be read, set diagnosis. or enabled. Interval measurement with a resolution of 200 ns is possible. The G2 input allows the counter to be halted (high = stop). The value is read with a rising edge at G1. Power supply 24 V DC (-15 %/+20 %) Current consum. pow.cont. – (no power contacts) Current consumpt. K-bus typ. 60 mA Encoder operating voltage 5 V DC Encoder output current 0.5 A Counter 16 bits, binary Limit frequency 4 million increments/s (with 4-fold evaluation) Quadrature decoder 1-, 2-, or 4-fold evaluation Zero-pulse latch 16 bits Commands read, set, enable Special features – Operating temperature -25…+60 °C Approvals CE, UL, Ex Weight approx. 85 g Further information www.beckhoff.com/KL5101 Special terminals Distinguishing features BECKHOFF New Automation Technology We reserve the right to make technical changes. Bus Terminal