ID 70209

Emergency deceleration too small (less than 1 increment per cycle).

Description

The deceleration for an emergency stop is set too small in the axis parameters (see P-AXIS-00003).

The position controller uses “1 increment per (cycle time)^2” as dimension of the emergency deceleration (1 increment is equivalent to 0.1 µm for translatory and 0.0001° for rotary axes). The smallest representable deceleration value in the position controller is therefore “1 increment per (cycle time)^2” or “0.0001° per cycle time^2”. The delay specified for the deceleration (dimension mm/s^2 or °/s^2) is converted into the position controller internal unit format. The acceleration value cannot be represented in the position controller if it is too small.

Response

Class

1

Warning output and correct the value

Solution

Class

1

Solution:

• Specify larger value for emergency stop deceleration, see P-AXIS-00003
• Increase the cycle time of the controller

Parameter

%1:

Logical axis number [-]

Logical axis number of affected axis, see P-AXIS-00016

%2:

Current value [1µm/s or 0.001°/s]

Specified deceleration for an emergency stop, see P-AXIS-00003

%3:

Corrected value [1µm/s or 0.001°/s]

Minimum value allowed for deceleration

Error type

2, Error message by data transfer from parameter list into control device.