Red Lion PXU - Manual (Page 7)

77
3.0 W
iring The
C
OnTrOller
WIRING CONNECTIONS
All wiring connections are made to the rear screw terminals.
When wiring the controller, use the numbers on the label and
those embossed on the back of the case, to identify the position
number with the proper function.
All conductors should meet voltage and current ratings for
each terminal. Also, cabling should conform to appropriate
standards of good installation, local codes and regulations. It is
recommended that power (AC or DC) supplied to the controller
be protected by a fuse or circuit breaker. Strip the wire, leaving
approximately 1/4" (6 mm) bare wire exposed (stranded wires
should be tinned with solder). Insert the wire under the clamping
washer and tighten the screw until the wire is clamped tightly.
1 L
50/60 Hz
5VA
AC 100-240V
N
2
13
14
User1
8
7
+
-
15 9 3
User 2
4 10 16
AL1
AL2
OP 2 / AL 3
+
-
11 17 5
12 18 6
RTD
OP 1 RS-485
D
D -
+
+
IN
Tc
+
- -
+
-
-
+
AC 100~240V
50/60 Hz
5VA
1
~
13
2 14
3 15
4 16
5 17
6 18
7 19
8 20
9 21
10 22
11 23
12 24
IN Tc
NO
D- L
N
NO
D+
RS-485
NO
NO
&200
&200
&200
&200
NC
AL 1
AL 2
OP 1
User 2
User 1
OP 2/ AL 3
+
+ +
+
+
+ - -
-
-
-
-
1/16 DIN 1/8 or 1/4 DIN
CONTROLLER POWER CONNECTIONS
For best results, the power should be relatively “clean” and within
the specified limits. Drawing power from heavily loaded circuits or
from circuits that also power loads that cycle on and off should be
avoided. It is recommended that power supplied to the controller be
protected by a fuse or circuit breaker.
2
1
L
N
AC 100-240V
50/60 Hz
5VA
INPUT CONNECTIONS
For two wire RTDs, install a copper sense lead of the same gauge and length
as the RTD leads. Attach one end of the wire at the probe and the other end to
input common terminal. This is the preferred method as it provides complete
lead wire compensation. If a sense wire is not used, then use a jumper. A
temperature offset error will exist. The error may be compensated by
programming a temperature offset.
12
11
10
TC-
TC+
12
11 DC+ VOLTAGE/CURRENT
DC- VOLTAGE/CURRENT 12
11
CONTROL AND ALARM OUTPUT CONNECTIONS
VAC
RTD and Resistance Thermocouple and Millivolt Voltage and Current
LOAD
AC/DC
Power (-)
LOAD
COMM
NO
NO
AC/DC
Power (+)
AL 2
AL 1
AC/DC
Power
LOAD
COMM (-)
NO (+)
AC Power
SSR
COMM (-)
NO (+)
POWER
UNIT
+
-
AC
AC
Alarm 1 and 2 * (1/16 DIN Shown) OP1/OP2 Output Control Relay *
OP1 Output Control Logic/SSR *
USER INPUT CONNECTIONS *
User 1
+
User 2
+
-
-
* See unit label for terminal identification.
RS 485 CONNECTIONS *
D+
D-
RS485
RECEIVING
DEVICE +
-
RS-485
0 V
DC 24V
2
1
+
_
VDC
ANALOG INPUT
CONTROL
DEVICE COMM (-)
NO (+) IN +
IN -
OP1 Output Control Analog *