Siemens SIMATIC S7-1500 Function Manual page 112

Configuring
6.6 Configuring the positioning axis/synchronous axis technology object
Enable ready input (drive type: Analog drive connection)
In the "Ready input" field, select the PLC tag of the digital input with which the drive is to
report its operational readiness to the technology object. The power unit is switched on and
the analog setpoint speed input is enabled.
In order to be able to select a ready input, a digital input module must have been added in
the device configuration, and the PLC tag name for the digital input must be defined.
Note
The enable output and the ready input can be separately enabled.
The following conditions apply to the enabled ready input:
• The axis is not enabled (MC_Power Status=TRUE), until a signal is pending at the ready
• If the signal at the ready input goes away for an enabled axis, then the axis is disabled
• If the axis is disabled with the instruction MC_Power (Enable= FALSE), then the axis is
112
input.
with an error.
disabled even with a pending signal at the ready input.
S7-1500 Motion Control V13 Update 3
Function Manual, 07/2014, A5E03879256-AC