Nexen RSTC1100 964528 - Manual (Page 8)

FORM NO. L-21204-C-0908 8
FIGURE 5 Alarm Output Connections
Alarm Out
RSTC
RSTC
To PL C Input
VD C Common
VD C* (See Specifications for
maximum voltage.)
R (See Note.)
User Supplied
User Supplied
NOTE: The minimum value of resistor (R) is 7 x VDC.
VD C Common
VDC*
(See Specifications for
maximum voltage.)
(See Note.)
User Supplied
User Supplied
R
External Indicator
VD C Common
VDC *
(See Specifications for
maximum voltage.)
(See Notes.)
User Supplied
User Supplied
External
Coil
1N4002
Alarm Output Tied to External Indicator
Alarm Output Tied to PLC Input.
Alarm Output Tied to External Inductive Coil
Alarm
Common
Alarm Out
Alarm
Common
RSTC
Alarm Out
Alarm
Common
NOTE: The minimum value of Resistor (R) is equal to VDC divided by the maximum
current limit of the Indicator. Maximum current limit of the indicator must be less
than the current limit of the alarm output (See Specifications for maximum current).
NOTE: Be sure the current requirement of the External Coil does not exceed the
capability of the alarm output (See Specifications for maximum current.
Any inductive load such as relay coil must have a 1N4002, or equivalent, diode
across it as shown.
* To isolate the Alarm Output signals use power
supply that is separate from the RSTC power supply.