Functions - Beckhoff KS2535, KL2545 Manual

2.7.2

Functions

The KL2535 and KL2545 pulse-width current terminals include an integrated PWM output stage (up to 175
W) in a very compact design.
General functions
Enable/Readiness for operation
The enable bit CB1.5 [} 40] in the control byte must be set in order to activate the output stage. If the
terminal is not subject to an error at this time, it acknowledges the command by setting the ready bit, SB1.4
[} 40], in the status byte
Setting/deleting the position (KL2545 only)
The current position value of the encoder can be set or deleted by the user. Register R1 [} 43] is the
reference for this. A rising edge at bit CB1.1 [} 40] sets the current position, and the acknowledgement is
provided through status bit SB1.1 [} 40].
Latch functions
The internal encoder offers the option of registering a latch event. A latch event can be generated via the
digital input signals.
The terminal response to the latch events is activated as follows:
• Setting the control bit CB1.2 [} 40] activates the rising edge at the digital input (highest priority)
• Setting the control bit CB1.3 [} 40] activates the falling edge at the digital input (second-highest
priority)
Once the user has enabled the function, during the next latch event, the terminal saves the current position
value and indicates this by setting status bit SB1.2 [} 40]. Reading out the latch value must be started by
setting CB1.4 [} 40]; this will map the latch value into the DataIN process data (the terminal indicates this
through status bit SB1.3 [} 40]).
Enable for latch values
The enable that was set previously must be retained while reading out the latch value. The latch
values are lost if the enable is removed!
Digital inputs
The digital inputs are mapped into the status byte in bit SB1.0 [} 40].
Error indication
The terminal offers the user a variety of diagnostic options. These messages are divided into hardware
warnings and hardware errors.
Hardware warnings
When one of the following warning occurs, bit SB1.5 [} 40] (Warning) is set in the status byte.
• OverTemperature R0.8 [} 43]
(If the temperature inside the terminal reaches 80°C, bit SB1.5 [} 40] (Warning) is set. The bit is
automatically reset if the temperature falls below 60°C.
• LowVoltage R0.9 [} 43]
KL2535/KS2535, KL2545/KS2545 Version: 2.1.0
Product overview
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