Innotech Maxim - Manual (Page 31)

Page 31
MAXIM Installation Instructions
© Mass Electronics Pty Ltd 2011 Chapter 3 – Electrical Installation
3-3.1.4 Digital Relay Outputs
The digital relay outputs have two terminals assigned to each channel representing the Normally
Open (NO) and Common (COM) contacts of the associated relay. It is good practice to use pilot
relays for the actual switching functions, particularly when it applies to inductive loads such as coils,
solenoids, and motors. This protects the relays of the Digital Output channel, and allows for the pilot
relays to be installed adjacent to the controlling switch gear.
The Digital Relay Outputs are rated at 24VAC / DC, with a maximum current rating of 2 A supplied by a
Class 2 transformer.
3-3.1.5 Universal Outputs
The MAXIM 1010 controller is equipped with 10 Universal Outputs that can be configured with
MAXCon software to suit a wide range of applications. Each Universal Output has a signal terminal
(+) and a reference terminal (–). The different types of outputs that the Universal Outputs can be
configured as, and the respective range for each are shown in Table 3-4 below.
On MAXIM 1010 controllers, all Universal Outputs can be configured to heat valve mode. When
the Universal Output is configured to Heat Valve mode, the output is a Pulse Width Modulated
(PWM) signal of 0 or 12V DC with a maximum current rating of 45m A. When the Universal Output is
configured as an analogue output in variable mode, the output is an analogue voltage signal varying
from 0 to 10V DC with a maximum current rating of 5m A.
In Digital Mode the output can drive 12V DC relays to 0V DC (OFF) or 12V DC (ON) with a maximum
current rating of 45mA.
Table 3-4: MAXIM 1010 Universal Outputs
Output Type Range
Analogue Output 0 - 10 V DC @ 5mA
Heat Valve / PWM Output 0 / 12 V DC @ 45mA
High Current Digital Output 0 / 12 V DC @ 45mA