Page 7-6 Troubleshooting
Revised 10/14
ITW Dynatec
D SERIES V6 DCL ASU Manuals
V6 Base
odule, cont.
Description of Components
The following items are referenced to the illustration on page 7 -5:
Item #1 The controller runs on standard 24VDC. The supply voltage, coming from the 24VDC
power supply, is connected to this terminal. The input is polarity sensitive.
Item #2 The operator’s panel connects to this header via a ribbon cable. There are several types of
operator’s panels available. They are interchangeable.
Item #3 This connector provides customer accessible relay contacts. There are three pairs of dry
contacts which are designed for maximum 240 VAC/1A. The default functions of the r elays are:
Relay 1: Ready Signal
This contact closes once the system is in ready condition (ready condition = all active temperature
zones are within their tolerances and there is no other alarm message pending). Normally open. a
Hopper Empty alarm message will not remove the Ready condition.
Relay 2: Alarm Signal
This contact opens whenever a critical situation arises. A critical situation could be a defective tem-
perature sensor, an over or under temperature situation, a motor driver fault, etc. Normally closed.
Relay 3: Hopper Empty Signal
This contact closes when the adhesive level in the hopper drops below a certain level. It can be used
to indicate this situation via an external light or an audible alarm. Normally open.
Note: Depending on the controller’s settings, one or more of the r elay outputs may be re-pro-
grammed for different purposes. In this case, refer to corresponding set-up instructions.
Item #4 This connector is used for a module-to-module connection. It provides the power-on sig-
nal to the power board through the TEMP board. In the case of a critical alarm, this 24 VDC signal
will drop, cutting off the heater power on the power boards. This signal may also control the main
contactor.
Item #5 This connector accepts external signals that can be used to control the ASU. The inputs require
24VDC signals. Although the internal 24VDC can be used to provide voltage for the inputs, it is
recommended to use external 24VDC. For this purpose the common of the signal inputs is available on
ter
minal IN-C. and is isolated from the internal 24VDC.
All inputs are not polarity sensitive. That means the common (IN-C.) can either be positive or negative.
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