Siemens SINUMERIK 840D sl Manual page 119

Terminal
1
2
3
4
Max. connectable cross-section 1.5 mm
Type: Screw terminal 1
The "Safe standstill (SH)" function is used in a fault situation or in conjunction with a machine
function for the safe disconnection (safe pulse suppression) of the energy supply to the
motor. No electrical isolation is made between the Motor Module and the motor!
In addition, if connected, the motor holding brake will be closed.
All hardware and software functions important for Safety Integrated are dual-channel
(Control Unit and Motor Module). This means in addition to the EP+/EPM terminal on the
Motor Module, a digital input on the Control Unit (e.g. DI3) must be configured with the "Safe
standstill" function.
EP+/EPM Low level (function selection) control input:
1. If the "Safe standstill" function is not activated using parameters, the signal level on the
2. The "safe pulse suppression" will be initiated and executed when the "Safe standstill"
EP+/EPM High level (function deselection) control input:
1. If the "Safe standstill" function is not activated using parameters, the signal level on the
2. The "safe pulse suppression" is not active when the "Safe standstill" function and the
Guide for the SINUMERIK 840D sl machine configuring
Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
Function
+Temp
-Temp
EP +24 V (Enable Pulses)
EP M1 (Enable Pulses)
EP+/EPM input has no significance.
function and the Low level at the EP+/EPM input are activated. For cancelation, a pulse
suppression will be activated.
EP+/EPM input has no significance.
High level at the EP+/EPM input are activated.
Note
The protective circuit of the Enable Pulses (EP) input is required only when the "Safe
standstill" function on the Motor Module and on the Control Unit was activated by
parameterizing.
Note
Protective measures must be adopted (e.g. for hanging axes) to prevent motions after
disconnection of the energy supply from the motor ("coast to a standstill").
5.4 Motor Modules Interface Description
Remarks
Temperature sensor connection (KTY)
EP +24 V Enable Pulses
EP M1 Enable Pulses
2
Connection of the Components
5-35