Rice Lake 320IS Intrinsically-Safe Digital Weight Indicator - Timer Relay Instruction Sheet - Manual

230 West Coleman Street • Rice Lake, WI 54868 • USA
TEL: 715-234-9171 • FAX: 715-234-6967
© 2004 Rice Lake Weighing Systems • PN 83544
320IS Timer Relay Instruction Sheet
The 320IS Timer Relay option is classified as open
equipment and must be mounted as instructed in an
e n c l o s u r e d u r i n g o p e r a t i o n t o p r ov i d e s a f e t y
protection. Authorized distributors and their employees
can view or download this instruction sheet
from the Rice Lake Weighing Systems
distributor site at
www.rlws.com .
Installation Instructions
1. Slide socket onto 2.5" section of Din rail.
2. Secure Din rail and socket to the back plate of
the I/O Module using the two 8-32NC X 3/8
screws provided in parts kit. (See Figure 3 )
3. Wire 120V power (Line & Neutral) to pins 2
and 7 of the socket.
4. Wire start switch (N/O) to pins 4 and 1 on the
socket.
5. Wire pins 3 and 1 on the socket to 320IS
contacts K1 (1 and 2).
6. Source field voltage to pin 8 on the socket.
7. Wire pin 6 to line of field device.
Note : Connect neutral to other side of field device (Same as
field source neutral)
8. Line up the pin numbers of the socket and the
timer relay and attach the relay to the socket.
9. Apply power.
10. Insert the cable tie arrow head mounts into
two of the five holes (see Figure 3).
11. Use the cable ties provided in the parts kit to
secure the wires to the cable tie mounts.
Figure 1. Relay Socket Pins
Note : Refer to Multifunction Digital Timer Manual for field
wiring and set-up information.
Figure 2. Relay Installation
Figure 3. I/O Module Back Plate
Wire to 320IS
contacts K1 (1,2)
Field source
line in
Field N/O Will
provide a latched output
until setpoint is made 2 in-lbs minimum torque
5 in-lbs maximum back out torque
3 5 4 6
2 1 8 7
120 VAC
Line & Neutral
Line Always hot
N/O
S t a r t
+ +
+ +
+
+
+
11.00
9.00
+
+
+
+
(2X DRILL ø.138 ± .033
8-32 NCX3/8 THRU)
(7X ø.250 ± .003 THRU)
+ +
+ +
+
+
Cable Tie Mounts
Din rail