Connecting The Output Signal Wire - YOKOGAWA WE7281 User Manual

2.2 Connecting the Output Signal Wire

For WE7281
1
2
15
16
IM 707281-01E
The output signal wires are connected to the terminal block of the 4-CH, 100 kS/s D/A module.
Pin arrangement of the terminal block
The output terminal is a clamp type terminal, and the pin arrangement is as follows.
Pin Number Signal
1 FG (Frame ground*)
2 N.C. (No connection)
3 CH1 H (CH1 positive)
4 CH1 L (CH1 negative)
5 N.C. (No connection)
6 CH2 H (CH2 positive)
7 CH2 L (CH2 negative)
8 N.C. (No connection)
9 N.C. (No connection)
10 CH3 H (CH3 positive)
* Ground potential
Connecting the signal wires
• Do not apply a voltage exceeding the following levels, as it may damage the module.
Maximum common mode voltage
Maximum voltage between channels : 250 VACrms or ±250 VDC between
• Do not connect to the N.C. (no connection) terminals. Applying signal to them
may damage the module.
• Do not apply external voltage across the output terminals of the same channel,
as it may damage the module.
• Make sure that the conducting parts of the output signal wire are not showing from
the opening (insertion point) of the terminal block. It can lead to electric shock.
The terminal block can be removed from the module by loosening the two attachment
screws as shown in the following figure. When removing or attaching the terminal block,
make sure to turn OFF the standby power switch on the measuring station.
Pin Number Signal
11 CH3 L (CH3 negative)
12 N.C. (No connection)
13 CH4 H (CH4 positive)
14 CH4 L (CH4 negative)
15 N.C. (No connection)
16 FG (Frame ground*)
CAUTION
: 250 VACrms or ±250 VDC between the
ground and the L terminal
terminals of different channels
WARNING
2
2-3