Baumer Speed switches DSL - Manual (Page 5)

Baumer_DSL-WinXP_MA_ENBaumer_DSL-WinXP_MA_EN.doc 5/22 Baumer Hübner GmbH
01.11.2010 / bja Berlin, Germany
2 Device versions
The DSL is a speed switch that is integrated into an incremental encoder. At the time of writing (edition:
March 2009) it is supplied in two versions:
Version 1: DSL.R suitable for operation with the external relay module DS 93 R.
• Version with 3 switched outputs that can be switched according to the speed. If the device is at
standstill or the rotational speed n is less than the switching speed n
s(off)
then the corresponding
switched output will be high. If n
≥ n
s(on)
then it will be low.
• If an internal error occurs (for instance, dirt on the disk, so that the counted pulse rate is incorrect)
then the outputs will switch to low.
Version 2: DSL.E with three internal electronic relays.
• Integrated current monitoring for each relay: This checks whether, when the relay is closed, a current
of at least 5 mA flows through the switched circuit.
• Two relay outputs (R1, R2) are switched according to the speed. If the device is at standstill or n <
n
s(off)
then the corresponding relay is closed. If n
≥ n
s(on)
then it will be open.
• The third relay output (C1) is a check output. If no current flows through at least one of the switched
circuits of the relay outputs (R1, R2), although the relay is closed, then the check output (C1) will be
opened.
• If no current flows through the switched circuit of the check relay (C1), although the relay is closed,
then R1 and R2 will be opened.
• If an internal error occurs (for instance, dirt on the disk, so that the counted pulse rate is incorrect)
then all relays will be opened
3 System requirements
PC with - operating system Windows 98 SE, ME, 2000 or XP
- USB connection
- at least 64 MB RAM
- at least 30 MB available on the hard disk.
The DSL is fitted with an RS 485 interface. Data exchange with the PC requires an RS 485 converter (“USB
to RS 485” or “RS 232 to RS 485”). A “USB to RS 485” converter can be obtained from Baumer Hübner
GmbH (Order code: USB 485-Converter).