Yokogawa DA100 - Manual (Page 35)

IM DA100-01E 2-14
2.6 Connecting the Signal Lines
W WARNING
• To prevent electric shock, always make sure that the power supply is
turned OFF before connecting .
• When 30 VAC or 60 VDC and more is applied to the output terminal of
the alarm output module or the output terminal of the DI/DO module,
use double-insulated wires(withstand voltage performance: more than
2300 VAC) for those wires which apply 30 VAC or 60 VDC and more.
All other wires can be basic-insulated(withstand voltage performance:
more than 1350 VAC). Furthermore, use “crimp-on” lugs (for 4-mm
screws) with insulation sleeves for connecting to the screw terminal.
Make sure that the crimp-on tool must be one specified by the crimp-on
lugs manufacture, and that the crimp-on lugs and tool must be matched
to the wire size. To prevent from electric shock, do not touch the
terminal after wiring and make sure to re-apply the cover.
CAUTION
• Do not apply an input voltage exceeding the following levels to each
terminal of the module. Otherwise, the internal circuits may be
damaged.
Universal, DCV/TC/DI and digital input modules
Allowable input voltage:
2 V DC range or less, RTD, TC and DI (CONT): ± 10 V DC
6 to 50 V DC range, DI (LEVEL):
±
60 V DC
Max. common mode noise voltage: 250 VAC rms (50/60 Hz)
mA input module
5 VDC
Strain input module
Don’t input voltage to the terminal
Pluse input module
5 VDC
Digital input of DI/DO module
–2 VDC to 7 VDC
• The contact capacity of the alarm module and the digital out of the DI/
DO module is as follows:
250 VDC/0.1 A (with a resistor load), 250 VAC/2 A (with a resistor
load), 30 VDC/2 A (with a resisitor load)
• The overvoltage category of each input module is CAT ll (IEC 1010-1).