Jetter JetMove 225-480, User Manual, Page: 97 / 126

JetMove 225-480 13 Safe Standstill (Option)
Jetter AG 97
13 Safe Standstill (Option)
For the digital servo amplifier JetMove 225-480, an optional integrated card for the
"Safe Standstill" and "Safe Restart Inhibit" can be ordered (designation of the article:
JM-225-480...-S1).
13.1 Introduction
The option "Safe Standstill" serves for safe de-energising of the motor, if personal or
material damage caused by a moving or inadvertently started motor is to be reliably
prevented. This safe switching off meets the stop class 0 to EN 60204. Additionally,
this function prevents the motor from starting up inadvertently. As long as no signal
is present at the "Enable" inputs, any restart of the motion system is blocked.
For controlling these functions, there exist the terminals Enable1, COM, and
Enable2. In order to make dual-channel switch-off possible, two independent enable
inputs and ground reference are needed. The ground reference of the enable inputs
(COM) is potentially isolated from the ground reference of the servo amplifier (see
"Reference ground" on page 72). The ground reference of enable inputs can differ
by up to +/- 100 V from the ground of the control system.
Fig. 21: Connection X73 for "Safe Standstill"
Note!
Even if the device has been equipped with the option -S1, the function of the
ENABLE input at the terminal array X10 is still active. This means that the motion
system can only produce a certain torque, if this input has been connected to 24 V
(against reference
ground).
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