Wiring To A Siemens Sirec D Recorder; Power Wiring - Siemens 353 User Manual

Installation

7.4.11 Wiring to a Siemens SIREC D Recorder

Figure 7-19 shows the wiring needed to connect a SIREC D analog input to a Model 353 analog input. As shown, a
1-5 Vdc transmitter input to the Model 353 is also routed the recorder's Analog Input 1.
External
Power
120/240 Vac
25W
47-63 Hz
Earth Ground
SITRANS P
+
DSIII, 2-Wire
Transmitter,
_
4-20 mA Output
MG00502d
Earth
Ground
Figure 7-19 Model 353 to Siemens SIREC D Recorder Analog Input Wiring

7.4.12 Power Wiring

Basic connections for AC and DC power input are shown in Figure 7-20. Wiring guidelines are given in Section
7.4.1.
Hot
External
Power
120/240 Vac
Neutral
25W
47-63 Hz
Earth Ground
X03106S0
Power input to a Siemens should be routed through a clearly labeled circuit breaker, fuse or on-off switch that is
located near the controller and is accessible by the operator. The protective device should be located in a non-
explosive atmosphere unless suitable for use in an explosive atmosphere. This type of wiring is shown in Figure 7-
21. It will permit removal of controller power without affecting the on-line status of adjacent controllers.
7-20
Model 353A
Controller Terminals
Hot
H
N
Neutral
G
26 Vdc
5
1-5 Vdc
20
AIN1
Ω
250
18*
Station
6
Common
*Or any station common terminal
Common Ground Bus
Notes:
1. See Table 7-1 for Model 353 AIN2, 3, and 4 terminals.
2. Refer to the Siemens SIREC D manual for details and other analog inputs.
Model 353A
Rear Terminals
H
AC To DC
Power Supply
N
on
MPU Board
G
=Terminal on rear of case.
H
Figure 7-20 Controller Power Wiring
SIREC D
Recorder Terminals
1
Channel 1
Analog Input
See Note 2
2
5
Channel 2
Analog Input,
Ω
See Note 2
10
4
_
Power Supply
(+)
External
Power
(-)
24 Vdc
25W
Earth Ground
G = Green screw at top center of rear terminal area.
UM353-1B
_
SITRANS P
DSIII, 2-Wire
Transmitter,
+
4-20 mA Output
+
Model 353D
Rear Terminals
H
DC To DC
Power Supply
N
on
MPU Board
G
April 2012