Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC - Manual (Page 45)

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Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
4-27
4.3 Safety functions
4 Function Description
Timing diagram
Fig. 4-10: Safety function SDI
 t
1
: Activation of safety function SDI
 t
2
: Once the SDI delay time has elapsed, the direction of rotation is
monitored
 SS1 Activate: Input for safety function SS1
 SS1 SIL3/Reset: Input for SIL3 and reset
 SDI Pos Activate: Input for safety function SDI, clockwise rotation is
monitored
 SDI Neg Activate: Input for safety function SDI, anti-clockwise rota-
tion is monitored
 Ready: Output for operating status of the safety card
 STO Acknowledge: Output for feedback from safety function STO
 SDI Acknowledge: Output for feedback from safety function SDI
Sicherheitsfunktion_SDI_Umsch
Switching the direction of rotation while safety function SDI is active
 When changing the direction of the motor, please note: Monitoring of
the old direction must be deactivated first, before monitoring of the
new direction of rotation is activated! (See Case A in the illustration).
v
t
SS1 SIL3/Reset
1
0
1
0
s (t)
1
0
1
0
1
0
SS1 Activate
Ready
STO Acknowledge
SDI
1
0
SDI Acknowledge
SDi Neg Activate
SDI delay time
1
0
SDi Pos Activate
t1 t2
Tolerance window