beautypg.com

Wiring, Inputs, Alarm reset – Dwyer 16L User Manual

Page 5

background image

December, 1998

Page 5 of 28

949-1270

WIRING

Do not run thermocouple or other class 2 wiring in the same conduit as
power leads. Use only the type of thermocouple or RTD probe for which
the control has been programmed. Maintain separation between wiring of
sensor, auxiliary in or out, and other wiring. See the "Secure Menu" for input
selection.

For thermocouple input always use extension leads of the same type
designated for your thermocouple.

For supply connections use No. 16 AWG or larger wires rated for at least
75°C. Use copper conductors only. All line voltage output circuits must
have a common disconnect and be connected to the same pole of the
disconnect.

Input wiring for thermocouple, current, and RTD; limit reset function; and

output wiring for 15 VDC is rated CLASS 2.

Control wiring is as shown.

Current

RTD*

Voltage

Thermocouple

+

-

+

-

* For 2-wire RTD use terminals 1 & 3, and

place a jumper wire between terminals 3 & 4.

F1
3/8 A @250 VAC
Medium Lag

INPUTS

Line Input See Rating

Label for details

ALARM
RESET

+

-

An external

normally open

contact may

be wired

across

terminals 9 &

10 for remote

reset.

Multiple units

can not share

common

contacts.

Terminals 9 &

10 share a

common

ground with

the input.