Pilz PMCprotego D.48 - 4.3.3.2 Signal states

Function Description
Operating Manual PMCprotego D.48, PMCprotego D.72
1001735-EN-04
45
4.3.3.2 Signal states
If the safety function STO is not required, 24 VDC must always be connected to the inputs
STO1-ENABLE and STO2-ENABLE.
Status conditions of the servo amplifier when using STO1-ENABLE and STO2-ENABLE:
STO1-ENABLE
STO2-ENABLE ENABLE Message on display Motor torque
0V 0V -S- No
0V 24V F27 No
24V 0V Device ID, e.g. P48
*)
No
24V 24V Device ID, e.g. E48
*)
Yes
*) with a servo amplifier with 48A continuous output current
The safety function STO may only be activated once the motor has stopped rotating (set-
point = 0V, speed = 0min
-1
, input ENABLE (X3B/1) = 0V).
The following sequence must be maintained if the drive is to use controlled braking:
1. Controlled braking of the drive (speed setpoint = 0V)
2. Disable the servo amplifier if speed = 0 min
-1
(ENABLE = 0V)
3. If a suspended load is present, use an additional mechanical measure to block the drive
4. Activate safety function STO (STO1-ENABLE and STO2-ENABLE= 0V)
1/s
U
U
STO
>100 ms
ENABLE
X3A/1
t
t
t
n
Fig.: Safety function STO