Festo DGE ZR-RF Series, Руководство по эксплуатации

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DGE−...−ZR−RF
Festo DGE−...−ZR−RF 0405a English
41
S
Carry out these steps if you wish to use ALL position scanners:
Fig.27
WS
n
R H
d > x
x
O
O/2
O
X
Z
r
W
S
n
H
r
h h
M
d > h
h = n + r
d
M = motor
X = interface with emergency stop circuit
Z = interface with controller
W = mechanical end position
S = safety limit or switching point of safety limit switch
H = switching point of hardware limit switch
R = reference point position
O positioning limits of software control
O/2 = centre of stroke
d = length of cam
h = stroke reserve
n = braking path 1
r = braking path 2
x = Distance of the reference point switch from the hardware limit switch next to the motor
Protecting the end position against uncon
trolled overrunning:
S
Use limit switches with normally−closed
function.
This will protect the product with a broken
limit switch cable against overrunning the
end position.
Fig.28