6-22
Safe Torque Off
AC30V series Variable Speed Drive
STO IMPLEMENTATION WITH SAFETY CONTROL UNIT
This example improves on the previous one by showing the resetting from a STO stop. The example shows wiring and terminal numbering for a
Siemens 3TK2827, but similar products are available from other vendors. Use of this Siemens part does not imply it is suitable for the user’s application.
The user must select and assess appropriate equipment.
Note:
On power-up, the safety control unit outputs are OPEN; thus the STO state is requested of the AC30V. The latter responds by energising KA1 if both
channels are active and healthy. KA1 is used as a self-check for the reset cycle of the safety control unit. If a reset cannot be achieved due to KA1
being de-energised, a fault may be present and must be resolved by the user before relying on the STO function. See Fault Operation on page 6-13.
X10/01 X10/03 X10/06 X13/02 X13/03 X12/05
DRIVE
START
DRIVE
STOP
SAFETY
DEMAND
AC30V STO
X10/02 X10/04 X10/05 X12/06
24VDC
SAFETY CONTROL UNIT
A1 Y10 Y11 Y12 Y21 Y22 13 23
RESET
KA1
KA1
A2 PE Y33 Y34 14 24
POWER
SUPPLY
THIS WIRING MUST BE WITHIN THE CONTROL CUBICLE.
Summary of Contents for AC30V Series
Page 34: ...Installation 4 16 AC30V series Variable Speed Drive Basic Speed Control Wiring...
Page 35: ...4 17 Installation AC30V series Variable Speed Drive APPLICATION 1 AUTO MANUAL CONTROL...
Page 36: ...Installation 4 18 AC30V series Variable Speed Drive Auto Manual Control Wiring...
Page 37: ...4 19 Installation AC30V series Variable Speed Drive APPLICATION 2 RAISE LOWER TRIM...
Page 38: ...Installation 4 20 AC30V series Variable Speed Drive Raise Lower Trim Wiring...
Page 39: ...4 21 Installation AC30V series Variable Speed Drive APPLICATION 3 PRESETS SPEEDS...
Page 40: ...Installation 4 22 AC30V series Variable Speed Drive Presets Speeds Wiring...
Page 41: ...4 23 Installation AC30V series Variable Speed Drive APPLICATION 4 PID CONTROL...
Page 42: ...Installation 4 24 AC30V series Variable Speed Drive PID Control Wiring...
Page 162: ...Sequencing Logic B 2 AC30V series Variable Speed Drive SEQUENCING DIAGRAM...
Page 325: ...E 2 E Plan Library AC30V series Variable Speed Drive Which then brings up the E Plan page...