Siemens SIMOTRAS 6SG7050 - Page 324

Function descriptions 01.04
9-26 SIEMENS AG 6SG7000-0BA76
SIMOTRAS HD Operating Instructions
Examples of peer-to-peer links
Rx Tx
Drive 1
(Activate bus terminating
resistors when using
data feedback)
2)
Drive 2
(Bus terminating
resistors activated)
Drive 3
(Bus terminating
resistors activated)
Drive n
n=any number
(Bus terminating
resistors activated)
Data feedback 3)
Type of peer connection "Series connection"
Each drive receives its setpoint from the preceding drive (classical setpoint cascade)
1) The interface cable shields should be connected at low impedance directly to the converters on the converter or
cabinet ground (e.g. using a clamp).
2) Twisted-pair cable, e.g. LIYCY 2x0.5 qmm; in the case of longer cable runs, an equipotential bonding conductor should
be used to ensure that the difference of the frame potentials between the connected units remains below 7V.
3) Optional data feedback that drive 1 uses to monitor the operation of the entire peer-to-peer network.
+
56575859
--
++
6SG70
Rx Tx
+
56575859
--
++
6SG70
Rx Tx
+
56575859
--
++
6SG70
Rx Tx
+
56575859
--
++
6SG70
Drive 1
2)
Drive 2
(Bus terminating
resistors activated)
Drive 3
(Bus terminating
resistors deactivated)
Drive n
(n <= 32)
(Bus terminating
resistors activated)
1)
Type of peer connection "Parallel conenction"
Up to 31 drives receive identical setpoints from drive 1
1) The interface cable shields should be connected at low impedance directly to the converters on the converter or
cabinet ground (e.g. using a clamp).
2) Twisted-pair cable, e.g. LIYCY 2x0.5 qmm; in the case of longer cable runs, an equipotential bonding conductor should
be used to ensure that the difference of the frame potentials between the connected units remains below 7V.
Rx Tx
+
56575859
--
++
6SG70
Rx Tx
+
56
57
58
59
-
-
+
+
6SG70
Rx Tx
+
56
575859
-
-
++
6SG70
Rx Tx
+
56
57
58
59
-
-
++
6SG70