54
Switch Settings
Section 4-3
4-3
Switch Settings
Key Switch
Power to the Removable Box is turned ON and OFF with the key switch.
The power is OFF when the key is in the vertical position. (Refer to the
diagram below.)
The key can be removed when the power is turned OFF.
Note
Always turn OFF the key switch before connecting or disconnecting the Cable
using the Removable Box.
DIP Switch
The DIP switch is used to set RS-422A communications conditions. Set the
DIP switch before connecting the cable to the Removable Box.
Note
When using a single NSH5 PT, turn OFF pin 4 (always send). When using
more than one NSH5 PT with a Removable Box, turn ON pin 4 (RS-232C CS
control).
In station detection mode, use the rotary switch to set a station number
between 1 and 15 for the Removable Box. Set this switch before connecting
any cables to the Removable Box. (Station number 0 means that the Remov-
able Box is not connected.) For details on the station detection function, refer
to
3-8 Station Detection Function
.
OFF
ON
OFF
ON
Pin No.
Description
ON
OFF
1
Built-in terminating
resistance setting
Terminating resistance
is connected.
Terminating resistance
is not connected.
2, 3
Do not change these
settings.
---
---
4
RS-422A transmission
mode setting
RS-232C CS control
Always send
1
4
ON
ON
OFF
1
2
3
4
ON
ON
OFF
Factory setting: SW1 is ON
Station number
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
Rotary switch
0
1
2
3
4
5
6
7
8
9
A
b
C
D
E
F
0
4
C
8
2
1
3
F
E
D
5
6
7
9A
B
0
4
C
8
2
1
3
F
E
D
5
6
7
9A
B
Factory setting
Summary of Contents for NSH5
Page 2: ......
Page 4: ...iv ...
Page 12: ...xii ...
Page 16: ...xvi ...
Page 24: ...xxiv EC Directives 6 ...
Page 58: ...34 Installing the Mounting Bracket Section 2 5 ...
Page 86: ...62 Connection Method Section 4 5 ...
Page 92: ...68 Precautions When Replacing the PT Section 5 4 ...
Page 98: ...74 General Specifications Appendix A ...
Page 99: ...75 Appendix B Dimensions 75 50 176 223 75 Four M4 70 5 16 5 ...
Page 102: ...78 Types of Memory Appendix C ...
Page 107: ...83 Recommended Enabling Circuits Appendix D Program Example ...
Page 108: ...84 Recommended Enabling Circuits Appendix D ...