Siemens 6RA7086-6KS22 Operating Instructions Manual page 386

Function descriptions
Drive 1
6RA70
Rx
+
-
+
59 58 57
Peer link type "Parallel connection"
Up to 31 drives receive identical setpoints from drive 1
1) The interface cable shields must be connected directly on the converter with the lowest possible
impedance to converter or cubicle earth (e.g. via a clamp).
2)
Twisted cable, e.g. LIYCY 2x0.5 sqmm; with longer cables, an equipotential bonding conductor
must be used to ensure that the difference in frame potentials between nodes stays below 7V.
Bus terminating
resistors activated
6RA70
Enable
transmit=1
Rx
+
-
+
59 58 57
Peer link type "Bus connection"
Up to 31 drives receive identical setpoints from one drive. The setpoint source drive is selected with
"Enable transmit" = 1. "Enable transmit" = 0 must be preset for all other drives.
1)
The interface cable sheilds must be connected directly on the converter with the lowest possible
impedance to converter or or cubicle earth (e.g. via a clamp)
2) Twisted cable, e.g. LIYCY 2x0.5 sqmm; with longer cables, an equipotential bonding conductor
must be used to ensure that the difference in frame potentials between nodes stays below 7V.
9-30
Drive 2
(
Bus terminating
resistors deactivated
6RA70
Tx Rx
+
- -
+
+
58
56 59 57
1) 2)
Bus terminating
resistors deactivated
6RA70
Transm. Enable
data transmit=0
Rx
0
1
Tx
+
-
-
+ +
56 59 58
1) 2)
Drive 3
(
Bus terminating
)
resistors deactivated
6RA70
Tx Rx
+
- -
+ +
56
59 58
Bus terminating
resistors deactivated
6RA70
Enable
transmit=0
Rx
0
1
Tx
+
-
-
+ +
57 56 59 58
.
)
Tx
-
+
56
57
0
1
Tx
-
+
57 56
SIEMENS AG
SIMOREG DC Master
05.05
Drive n (n <= 32)
(
Bus terminating
)
resistors activated
6RA70
Rx Tx
+
- -
+ +
58 56
59 57
Bus terminating
resistors activated
6RA70
Enable
transmit=0
Rx
0
1
Tx
+
- -
+ +
59 58 57 56
6RX1700-0AD76
Operating Instructions