USP 4.0 250
Linear stroke control unit for Steady Rests
■ Completely sealed, protection class IP 67 ■ Output signal 4 - 20 mA or 0 - 10 V Application/customer benefits • For SMW-AUTOBLOK steady rests • Non-contact distance measurement using ultrasonic technology • Industry 4.0 compatible • Linear stroke measuring of the entire clamping stroke avoids collision with the tools, which is an added safety feature • Time and energy saving due to only partial opening of the steady rest (with corresponding machine hydraulics) Technical features • Ultrasonic measuring system • No interference from magnetic fields
Measuring range 25 - 250 mm
• Measuring range = 25 - 250 mm • Compact design / easy installation • Output signal analog 0 - 10 V / 4 - 20 mA • Protection class IP 67 • Reverse polarity protection • Use of airpurge is mandatory Accessories Sensor connection cable see USP 4.0 250 (Plug M12 x 1) and protection hose
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m a i
Ordering Example USP 4.0 250 with 200 mm cable with plug M12 x 1 and protection hose
Measuring principle In steady rests , the levers with their rollers move linear and concentric to the center of rotation. With conventional end position measurement via non-contact limit switches, the two end positions fully open and fully closed without work piece are detected. With linear stroke measuring via USP 4.0 250, the clamping stroke is measured lineary. This means that a corresponding
analog signal is always available for each individual position. Only partial opening of the steady rest is possible with the appropriate hydraulics, and in addition to easier loading it also saves time and energy. Due to the linear stroke measuring, the integration of a collision protection software is also possible.
Partial opening of the steady rest for loading and unloading. Time and energy saving.
10
20
mA
V
8
16
6
12
4
8
2
4
closed
0
0
mm
with USP 4.0 250
Collision protection: Through the evaluation of the output signal.
10
20
mA
V
8
16
6
12
4
8
2
4
0
0
half-open
protected area
Linear stroke measuring of the steady rests stroke with linear adjustment of the protected area.
10
20
mA
V
8
16
6
12
4
8
2
4
0
0
open
protected area
434 SMW-AUTOBLOK
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