
User Manual
V277T0001, valid for V-277.630 and V-277.631
KSch, 2017-01-24
Physik Instrumente (PI) GmbH & Co. KG, Auf der Roemerstrasse 1, 76228 Karlsruhe, Germany Page 7 / 24
Phone +49 721 4846
Safety Precautions
CAUTION
Risk of cuts and crushing!
The V-275 linear actuator can generate high forces at high velocities. When a contact part
with a small contact surface is installed on the pusher of the linear actuator, the pressure
exerted by the pusher on a fixed part or obstacle during operation may be very high. If
fingers or limbs get caught between the pusher of the linear actuator and a fixed part or
obstacle during operation, there is a risk of minor injury from cuts and crushing.
Use protective structures to keep limbs away from areas in which they could be seized
by pushers.
Observe the safety distances in accordance with the applicable standards when
installing protective structures.
If possible, use contact parts with a sufficiently dimensioned contact area, so that a
pressure of 50 N / cm2is not exceeded when operating the linear actuator with the
maximum specified force (p. 15).
NOTICE
Damage due to mechanical overload of the pusher!
Excessive torque or forces on the pusher (p. 8) can damage the V-277 linear actuator.
Do not exceed a maximum screw-in depth of 5 mm when mounting a contact part
(V-277.631) or a load (V-277.630).
Do not exceed the following maximum forces both in the positive and the negative
direction of motion of the pusher:
11 N with V-277.631
20 N with V-277.630
V-277.631 only: Do not exceed a maximum torque of 15 Ncm when changing the
contact part. Use a torque wrench to tighten the contact part.
V-277.631 only: Do not exceed the maximum lateral force acting on the contact part,
which is calculated using the following formula:
Fmax = Maximum torque [in Ncm]
Maximum lever length [in cm] = 15 Ncm
Contact part length [in cm] + 2.2 cm
(Contact part length: Overall length of the contact part excluding the mounting
thread)
V-277.630 only: Do not exceed a lateral force of 10 N acting on the pusher.