Setting The Monitoring Of The Direction Of Rotation (Job 11) - Siemens simatic et 200s Operating Instructions Manual

1PosUniversal/Digital
7.6 Functions of the 1PosU
7.6.16

Setting the Monitoring of the Direction of Rotation (JOB 11)

Definition
The monitoring of the direction of rotation function is not available in dosing operation.
By setting monitoring of the direction of rotation you can adjust the monitoring of the direction
of rotation of the 1PosU to suit your load and mechanical conditions.
Monitoring of the direction of rotation is always active. The 1PosU detects whether the
direction of rotation of the drive and the encoder is the same. Direction of rotation monitoring
will tolerate different directions for the drive and the encoder up to the preset path difference.
If the preset path difference is exceeded, the 1PosU signals POS_ERR =1.
Unless you have activated JOB 11, double the switch-off difference is used from the
parameters as the path difference. JOB 3 (which changes the switch-off difference) does not
affect the path difference for the purpose of monitoring of the direction of rotation.
Supply the control interface with the new path difference, and activate JOB 11.
The 1PosU accepts the preset path difference for the monitoring of the direction of rotation.
The preset path difference for the monitoring of the direction of rotation remains valid until
the parameter assignment of the PosU is changed.
Disabling the Monitoring of the Direction of Rotation
Monitoring of the direction of rotation is disabled when the path difference is 0.
Effect on the MODEs
MODEs are not affected by JOB 11.
Control Signals: Setting the Monitoring of the Direction of Rotation
Address
Byte 4
Byte 5
Bytes 6, 7
Feedback Signals: Setting the Monitoring of the Direction of Rotation
Address
Byte 4
356
Assignment
Bits 4.7 to 4.4 :
Bit 7 6
1 0
Bit 0: JOB_REQ
0
Path difference for monitoring of the direction of rotation
(0 to 65 535)
Assignment
Bit 1: JOB_ERR
Bit 0: JOB_ACK
5 4
JOB 11 = Set the monitoring of the
1 1
direction of rotation
Operating Instructions, 05/2007, A5E00124871-04
ET 200S Positioning