Jetter JetMove 225-480, User Manual, Page: 98 / 126

13 Safe Standstill (Option)
JetWeb
98 Jetter AG
13.2 Motion System JM-225-480-S1
The following figure is to demonstrate the basic setting of a motion system using a
servo amplifier JetMove 225-480-S1 equipped with the "Safe Standstill" function.
Fig. 22: Motion system using a servo JM-(D)2xx servo amplifier
The digital servo amplifier JM-204-480 has been designed for being installed in a
control cabinet. The energy for driving a motor is supplied by a one-phase mains
system. Further, an extra-low safety voltage of 24 V supplies the control electrics. Via
various inputs and outputs of a digital signal interface, communication with higher-
level control elements is established; these control elements issue the motion
commands for the motor, receive status reports and transmit them, if necessary.
Usually, the motor has been mounted at or within a machine outside the control
cabinet. It is connected via a cable to the JetMove 204-480. For reporting the
position, it has got an actual position value encoder. The mechanic load to be driven
has been mounted to the motor shaft.
A safety-relevant device accesses the electronic control system of the JetMove via
controller inputs "ENABLE1" and ENABLE2". If Safe Standstill has been required,
the motor is de-energized in a way that the torque will be safely deactivated. Yet, this
does not mean that there is a safe electric isolation. If a safe electric isolation is
necessary, an additional isolating device for interrupting the power supply (e.g.
mains switch) must be supplied according to EN 60204.
JM-(D)2xx
Control cabinet
Mech. load
to be
driven
Motor
Encoder signals
Motor lines
V
o
lta
ge
su
pp
ly
2
4
V
D
ig
ita
l c
on
tr
ol
in
te
rf
ac
e
P
ow
e
r
su
pp
ly
Input
“Safe Standstill”