Dc Power Input - Honeywell touchpoint Pro Operating Instructions Manual

MAN0923_Issue 3_04/15 Touchpoint Pro
Operating Instructions
4. Electrical Installation

4.2.2 DC Power Input

Caution: External DC Power input (if used) must conform to the Input Supply Voltage specification
given in Chapter 10, and must not be located inside the Touchpoint Pro wall mounted enclosure.
The voltage supply requires an overcurrent protection rated in accordance with the rating plate on the
specific system.
The supply must be able to be isolated by means of a switch or circuit breaker, which must be suitably
located, easily reached and clearly marked as the Touchpoint Pro disconnect device.
The wiring used between the isolator and Touchpoint Pro must be appropriately rated and approved.
Ensure that the power supply is able to maintain sufficient voltage level for the connected field devices.
4.2.3 DC Power Output
Touchpoint Pro power output can be adjusted to between 24 Vdc and 28 Vdc (default 24 Vdc).
Touchpoint Pro power supplies include a DC OK relay, which is closed when the output voltage reaches the
adjusted output voltage level, and opens when the output voltage dips more than 10% below the adjusted
output voltage level.
The DC OK Relay has a maximum rating of 60 Vdc 0.3 A, 30 Vdc 1 A or 30 Vac 0.5 A resistive load and a
minimum permissible load of 1 mA at 5 Vdc.
Note: If the UPS Module with battery backup option is being used, ensure that the power supply is adjusted
to at least 26 Vdc to ensure sufficient charging of the battery.
Note: If the Power Redundancy Module is being used, ensure that both power supplies are set to the same
output voltage.
4.3 Cabling Requirements
WARNING
All cabling must be appropriately rated and approved in accordance with local, national and
company regulations. Additionally, cabling must satisfy requirements defined in the manuals of
connected field devices, in particular if the field device is certified for use in a hazardous location.
All cabling should meet local, national and site regulations, and be suitable for the operating environment.
Cable should be appropriately rated and approved. Bootlace ferrules must be used on all terminations.
For installation in Canada and the USA, for both ordinary and hazardous locations, all connections, cabling,
overcurrent protection and installations must strictly adhere to both the National Electrical Code (NEC) and
the Canadian Electrical Code (CEC).
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