01/2007
9.3 Example for systems with more than 6 drives
9-266
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
In order to use the infeed signal for the drives controlled by Control_Unit_2, it
must be transferred via an external interconnection from an output terminal of
Control_Unit_ to an input terminal of Control_Unit_2.
The following input/output terminals of the control units are used as an example
for the following description:
S Control_Unit_1: p738, BI: CU signal source for terminal DI/DO 8 (X122.7)
S Control_Unit_2: r722: Bit0. CO/BO: CU digital inputs, status: :DI 0 (X122.1)
Perform the following actions to interconnect the drive parameters with the in-
feed signal:
1. Use a BICO interconnection to connect infeed signal ”r863: Bit0, Infeed
operation”:
– Project > Drive_Unit_Addr10 > Infeeds > Infeed > Diagnostics > Inter-
connections > Tab: ”BO/CO” > Signal: ”r863: Bit0, Infeed operation”
with the parameter for the output terminal (X122.7) of the Control_Unit_1:
– p738, BI: CU signal source for terminal DI/DO 8
BI/CI
Further interconnections...
BO/CO
r863: Bit0, Infeed operation
Drive_1
Control_Unit_1
Drive_2
Drive_3
Drive_4
Drive_5
Control_Unit_1, p738, Bi:CU signal source for terminal
Infeed
p738, Bi: CU signal source for terminal DI/DO 8
p738, Bi: CU signal source for terminal DI/DO 9
p738, Bi: CU signal source for terminal DI/DO 15
p738, Bi: CU signal source for terminal DI/DO 14
p738, Bi: CU signal source for terminal DI/DO 13
p738, Bi: CU signal source for terminal DI/DO 12
p738, Bi: CU signal source for terminal DI/DO 11
p738, Bi: CU signal source for terminal DI/DO 10
Further interconnections...
r898: Bit0, ON/OFF1
r863: Bit1, Control line contactor
r898: Bit1, ON/OFF2
r898: Bit3, Enable operation
r898: Bit5, Inhibit motoring operation
r898: Bit6, Inhibit generator operation
Fig. 9-3 STARTER: Work area (excerpt)
2. Configure the bidirectional digital input/output: ”DO 8” (X122.7) of
Control_Unit_1 as output:
– Project > Drive_Unit_Addr10 > Control_Unit_1 > Double–click: ”Inputs/
outputs” > Tab: ”Bidirectional digital inputs/outputs” > DO 8 or X122.7 =
output
X122
Output
Infeed, r863: Bit0, CO/BO:
Digital inputs
7
8
9
DO 8
DI 9
M
Input
0
– –
– –
– –
– –
1
1
Bidirectional digital inputs/outputs
Measuring
sockets
Fig. 9-4 STARTER: Work area (excerpt)
General procedure
Execution
9 Drive Commissionin
SINAMICS