Siemens SINUMERIK 840D sl Manual

Activate/Deactivate Drive System
9.2 Drive Group with Several Axes
Guide for the SINUMERIK 840D sl machine configuring
Manual, 07/2006 Edition, 6FC5397-6CP10-0BA0
9-5
Off responses
● OFF1
– The immediate specification of n_set = 0 at the ramp generator return ramp (p1121)
causes the drive to be braked.
– When zero speed is detected, the motor holding brake (if parameterized) is closed
(p1215). The pulses are suppressed when the brake application time (p1217) expires.
The standstill is detected when the actual speed value of the speed threshold (p1226)
is undershot or when the monitoring time (p1227) started when speed setpoint ≤
speed threshold (p1226) has expired.
● OFF2
– Immediate pulse suppression, the drive coasts to standstill.
– The motor holding brake (if parameterized) is closed immediately.
– Power-on inhibit is activated.
● OFF3
– The immediate specification of n_set = 0 at the OFF3 return ramp (p1135) causes the
drive to be braked.
– When zero speed is detected, the motor holding brake (if parameterized) is closed.
The pulses are suppressed when the application time of the holding brake (p1217)
expires. The standstill is detected when the speed actual value of the speed threshold
(p1226) is undershot or when the monitoring time (p1227) started when speed
setpoint ≤ speed threshold (p1226) has expired.
– Power-on inhibit is activated.

Siemens SINUMERIK 840D sl Specifications

General

Control Type	CNC
Number of Axes	Up to 31
Max Number of Channels	10
Interfaces	Ethernet, PROFIBUS, PROFINET, USB
Interpolation	5-axis interpolation
Operating Temperature	0°C to 45°C
Relative Humidity	Up to 95% (non-condensing)
Display	TFT color display, various sizes
Programming Languages	DIN/ISO
Safety Features	Safety Integrated
PLC	Integrated PLC S7-300
Drive Interface	SINAMICS S120
Data Storage	CF card, USB
Operating System	Windows-based