Signal States - Pilz PMCprotego D.48 Operating Manual

Function Description
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
0 V
0 V
24 V
24 V
*) 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
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
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)
n
ENABLE
X3A/1
STO
Fig.: Safety function STO
Operating Manual PMCprotego D.48, PMCprotego D.72
1001735-EN-04
ENABLE
0 V
24 V
0 V
24 V
-1
, input ENABLE (X3B/1) = 0 V).
1/s
U
U
Message on display Motor torque
-S-
F27
Device ID, e.g. P48
*)
Device ID, e.g. E48
*)
-1
(ENABLE = 0 V)
>100 ms
No
No
No
Yes
t
t
t
45