Flowserve DDC-100 Master Station II - Manual (Page 19)

FCD LMAIM5001-00 DDC-100 Master Station II Installation and Operation Manual 19
Flow Control Division
Limitorque Actuation Systems
4.3 Master Station Network Schematic
Figure 4-4: DDC-100 Redundant Loop Network
Diagnostic Note:
Earth Ground Note:
MOV-3
A2
A2*
A1
A1*
TB5
MOV-247
A1
A1 *
A2
A2*
TB5
N/ C
MOV-249
D-M
D-M*
D-S
D-S*
A1
A1*
A2
A2 *
TB4 TB3
TB5
Notes:
Legend
MOV
D-M
D-M*
D-S
D-S*
N/C
Data terminal is positive with respect to data* terminal
See Note 5
See Note 5 See Note 5
1) Belden 3074F, 3105A, or 9841 shielded cable is recommended.
2) Correct polarity for field unit and network controller
connection is necessary for proper operation.
3) Connections shown are typical. The number of
MOVs shown may not indicate true system size.
4) Earth ground: ground rod
5) Earth ground: ground rod or lug in
actuator if actuator is grounded.
Polarity and level of the network’s data connection can
be checked by measuring voltage between data and
data* terminals. This voltage should be greater than
+200mVDC with network controller network ports
disconnected.
If low impedance earth ground is not available at
each actuator, contact engineering for alternative
earth ground surge protection strategies.
A1*
MOV-2
See Note 5
N/C
A2*
N/C
MOV-248
See Note 5
N/C
MOV-4
See Note 5
N/C
16
15
41
29
29
41
D-S
D-S*
D-M
D-M*
TB3 TB4
MOV-1
A2
A2*
A1
A1*
TB5
See Note 5
D-S
D-S*
D-M
D-M*
TB3 TB4
D-M
D-M*
D-S
D-S*
TB4 TB3
15
16
A2
A1
A1*
A2* 29
41
15
16
A2
A1
A1*
A2* 29
41
15
16
A2
A1
Motor-Operated Valve
Data A1
Data A1*
Data A2
Data A2*
Data A1 (UEC-3-DDC)
Data A1*(UEC-3-DDC)
Data A2* (UEC-3-DDC)
Shield
No Connection
Data A2 (UEC-3-DDC)
N/C
MOV-250
See Note 5
A1*
A2* 29
41
15
16
A2
A1
N/C
Channel A Channel B
MASTER STATION II