Excel 50UPC Controller. CSI 3-Part Specifications.

General

Excel 50UPC is designed as a controller with integrated communication capability. Excel 50UPC can be used as a standalone controller or integrated in the EXCEL 5000® system.

Typical applications of the Excel 50 controller are heating systems, district heating systems and small air conditioning plants for schools, retail stores, restaurants, small shops, offices, branch banks, churches and small distributed governmental houses.

The application software and the firmware, the system software, is stored in Flash-EPROM. The Flash-EPROM is located in the communication module, a separate module plugged into the rear of the controller housing. For future communication upgrades, only the communication module will have to be replaced. No changes to the controller or wiring are necessary.

The necessary interfaces for communication with the EXCEL 5000 system and for remote control operation are integrated in the Excel 50UPC controller and application modules so that there is no need for additional communication devices.

All changeable parts or switches are accessible without opening the controller housing.

Features

• Direct modem communication
  Minimum hardware, installation and wiring costs
• Ready to communicate within the Excel 5000 system
  No submodule or other device needed to communicate within the system
• Installation flexibility and simplicity
  One device for a variety of installations (inside cabinet/DIN rail or cabinet front door) minimizes mounting costs
• User-friendly, bus-wide operator interface
  Most efficient operation, start-up and troubleshooting provided by system-wide access
• Application flexibility
  Uses the CARE application software package to create specific control solutions or to customize existing CARE applications
• Simple commissioning
  Time-efficient application software download into controller Flash-EPROM
• Multiple operator interfaces
  Devices with built-in or optional external operator interfaces for optimal selection based on frequency of use

Description

The Excel 50 controller has two housing versions, a housing with an operator interface (OI) and a housing without an OI. The external OI XI582 or the PC-based OI XI584 can be connected to all versions. The housing is mountable inside a cabinet (DIN-rail) or in a cabinet front door.

The controller has 8 analog inputs, 4 analog outputs, 4 digital inputs and 6 digital outputs. 3 out of 4 digital inputs can be used as totalizers. The digital outputs allow the direct drive of floating actuators (up to the maximum load).

The controller is wired with removable screw terminal blocks. Prewiring is possible, and a controller can be replaced without rewiring.

The Flash-EPROM in the communication module enables the download of new firmware versions. A modem can be connected to the serial port to allow remote access at up to 38.4 Kbps. The Excel 50UPC is fully compatible with the EXCEL 5000 system.

Specifications

Models

XL50UMMIPC (with LCD and keypad)
XL50UPC (without LCD and keypad)

Mounting Options:

Front door mounted with sealing ring (order ACC3 mounting clamps separately).
Cabinet mounted with rail clamps on DIN-rail (clamps shipped with device).

Input/Output Specifications

Table 1. Input/Output Specifications.

All inputs and outputs protected against overvoltage up to 24 Vac and 35 Vdc. Digital outputs protected against short circuits via a changeable fuse (built-in fuse, 5 x 20 mm, 4A quickblow).

Power Supply

Voltage:
24 Vac, ±20 %, 50/60 Hz from external transformer.

Current:
3A (2A if digital output current £ 1.5A).

Power Consumption:
Max. 10 VA without load at digital outputs

Memory Backup:
In case of power failure capacitor keeps RAM content for 72 hours.

Bus and Port Connections

Bus:
C-Bus (located on communication module) - detachable 3-pin connector with screw terminals.

Serial Port:
9-pin Sub-D connector (RS 232) for external backlighted operator interface XI582 and XI584 used as PC operator interface, or for modem communication.

I/O connector A:
26-pin port, digital outputs and power.

I/O connector B:
34-pin port, analog and digital inputs, analog outputs.

Terminals:
Screw terminal blocks directly attached to housing.

Communication Module

Ports:
C-Bus up to 76.8 Kbps.

Firmware:
Downloadable via PC-based operator interface XI584 or C-Bus.

Memory:
246K RAM + 2 x 512K Flash-EPROM

Housing:
Plug-in plastic module, fixed with screws.

LEDs:
For power and communications status.

Operator Interface (Optional)

Keypad:
8 function keys, 4 fast access keys.

Display:
LCD, 4 lines, 16 characters per line, adjustable display contrast.

Environmental Ratings

Operating temperature:
0 to 45°C (32 to 113°F)

Storage temperature:
-20 to 70°C (-4 to 158°F)

Relative humidity
5 to 90% noncondensing

Protection Standards

IP54:
When front door mounted with operator interface within a cabinet which has IP54 and with ACC3 mounting clamps and sealing ring.

IP30:
When cabinet mounted without operator interface.
When cabinet mounted with operator interface.

Certifications
CE
UL 916 and cUL
Meets FCC Part 15, Subpart J for Class A equipment.

Communication Module Details

Terminal Block Attachment

Terminal Details

Terminal Assignment Block A

Terminal Assignment Block B

Dimensions