Opening the electrical enclosure
door
Installation
3-33
Part 1107600_03
2014 Nordson Corporation
Installing Melter Inputs
The AltaBlue melter is equipped with the optional input/output (I/O)
expansion card, which allows six digital inputs. Each input is customer‐wired
to the melter and then set up to provide one of the following control options:
Place the melter into the standby mode
Turn the heaters on and off
Enable or disable a specific hose or gun
Turn the motor on and off
The inputs require a 10 to 30 VDC signal voltage. The inputs are not
polarity‐sensitive.
WARNING! The operator can override the melter inputs by using the control
panel function keys. Ensure that the control logic for any external device that
sends an input signal to the melter is programmed to prevent the creation of
an unsafe condition in the event that the operator overrides an external input
to the melter.
To wire digital inputs to the melter
1. Route a 2‐, 4‐, 6‐, or 8‐conductor signal cable from the control equipment
to the melter and through the PG‐16 penetration on the floor of the
electrical compartment. Use rigid or flexible conduit or a suitable strain
relief to protect the cable from the sharp edge of the conduit penetration.
NOTE: Use a signal cable suitable for NEC class1 remote control and
signaling circuits. To reduce the possibility of electrical shorting, route the
cable so that it does not touch nearby circuit boards.
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