Stop Position Monitoring Function; Operating Condition Detection; Turning Stop Position Monitoring Function Valid/Invalid - YASKAWA DX100 Instructions Manual

HW0486052
DX100
5

Stop Position Monitoring Function

5.1
5.2
5 Stop Position Monitoring Function
5.1

Operating Condition Detection

Operating Condition Detection
The stop position monitoring function is one of the functions of the
functional safety unit. With this function, the encoder information of the
robot or external axis is monitored. If the robot or external axis moves
when the function is valid, the power supply to the servo is shut off
immediately to turn the servo power OFF.
The VALID/INVALID setting of the stop position monitoring function is
performed by the turning ON/OFF of the external dual signal (e.g. area
sensor, mat switch).
When using this function, refer to chapter 5.2 "Turning Stop Position
Monitoring Function VALID/INVALID" and connect the dual signal.
If the movement of each axis is detected, the following alarm occurs and
the servo power is turned OFF.
Alarm 4704: "STOPPING POS. MON. ERR (SAFETY)
Countermeasure:
(1) Short-circuit the GSIN signal.
(2) Reset the alarm.
If the system consists of multiple control groups (e.g. robot
+ external axis), the stop position monitoring cannot be per-
NOTE
formed for each axis separately. The monitoring is per-
formed only for the whole controller.

Turning Stop Position Monitoring Function VALID/INVALID

The combination of the VALID/INVALID status of the stop position
monitoring function and the ON/OFF status of the signal is shown in
table 5-1 "VALID/INVALID Setting of Stop Position Monitoring Function"
at page 5-2 and the connection diagram is shown in chapter Fig. 5-1:
"Connection Diagram Example" at page 5-2.
If the functional safety unit detects the inconsistency of GSIN signal, the
following alarm occurs:
Alarm 4705: "SIGNAL COMPARISON ERROR (SAFETY)"
Subcode 40, 41: GSIN SIGNAL INCONSISTENT
5-1
HW0486052
42/56