FDC Orion-M, Руководство пользователя

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Orion-M
GETTING STARTED FDC Orion-M 2.1
2 Getting Started
The Orion-M requires one Honeywell UDC2500 or UDC3200 for each control loop required in the system.
Since the Orion-M is capable of interfacing to more than one brand of controller, refer to the Orion-M part
number matrix for the operating system to be sure that the HWSL, CM application software has been
provided. The Orion-M will not operate correctly if any other version of CM application software is used with a
Honeywell UDC2500 or UDC3200 controller.
2.1 Installing the UDC2500/3200 Controller
For applications requiring several loops of control or more, proper planning and arrangement of the Honeywell
UDC controllers prior to mounting is critical for optimum routing of the controller wiring. For applications
requiring frequent access to the controllers, panel mounting provides direct access. For applications where
operator access to the controllers is not required, or is desired to be kept at a minimum, the controllers can be
mounted directly inside of an enclosure. This also reduces wiring concerns by eliminating the need to run the
sensor, communication and control wiring for each controller to and from an enclosure door.
Refer to the Honeywell UDC2500 or UDC3200 Controller Product Manual for dimensions, appropriate
mounting and operating conditions, including proper electrical connections. Connect sensor and control
wiring as required, paying close attention to all wiring precautions and guidelines as noted in the controller
manual. It is recommended that all sensor and communication wiring, to and form the UDC controllers, be
routed away from all high voltage and/or output control wiring. This will minimize the chances of electrical
transients or spikes in the power/control wiring from causing communications or sensor reading errors.
2.1.1 Communications Wiring
Each UDC2500/3200 control used in the Orion-M system is its own independent loop control. However, in
order for the controllers to work as part of the system, they must communicate with the Orion-M control
module using RS485 serial communications. Therefore, each UDC2500/3200 used must be equipped with
the RS485 Modbus RTU communications option or they will not operate as part of the Orion-M system:
DC250X-XX- 2 XXX-XXX-XX000-XX-0
DC320X-XX- 2 XXX-XXX-XX000-XX-0
Order code 2 designates RS-485 Modbus serial communications
(see Honeywell UDC Product Manual for model number interpretation)
Communications wiring must be run using a minimum of 24 AWG twisted-pair, copper conductors. For short
runs (< 50 feet total), non-shielded wiring can be used as long as proper separation from power/control
conductors is maintained. For communications wiring where the total length will exceed 50 feet, up to the
maximum allowed length of 650 feet, shielded twisted-pair must be used.
NOTE: FDC recommends the use of shielded wire for all installations regardless of the total length in order
to maintain optimum performance and minimize the possibility of communications errors.
When using shielded twisted-pair, be sure to ground the shield at only one end, preferably at the Orion-M
control module. Allowing any other portion of the cable shield to come in contact with ground, or grounding
both ends, will allow ground loop currents to flow in that section of the cable shield which can disrupt
communications.