Systems & Services - Excel 20 Controller - Page 16

EXCEL 5000® System Architecture

 Ambient limits
Operating: 32 to 113F (0 to 45C), 5 to 95% rh, noncondensing
Storage: -4 to +140F(-20 to +60C), 5 to 95% rh, noncondensing

Dimensions
Housing:

• 4 in high, 7-³/₄ in. wide, 2 in. deep
• (102 mm high, 196 mm wide, 50 mm deep)

Standard cut-out size:

• 3-⁵/₈ in. high, 7-⁵/₁₆ in. wide
• (92 mm high, 186 mm wide)

Mounting
DIN rail or control panel door with Excel 20 accessory kit (Part no. XL20ACC) 

Excel 20  Controller Highlights

Inputs/outputs
Configuration:

• 7 analog inputs, 0-10 Vac
• 3 analog outputs, 0-10 Vac; max. 11 Vac, 1mA
• 2 digital inputs, 0.4 Hz; alternatively as totalizer up to 15 Hz
• 4 digital outputs switched by Triac, 400 mA, 24 Vac per channel

Firmware and application software in one EPROM

CPU

• 16-bit Intel 80C188 microprocessor
• EPROM 512 Kbyte
• RAM 128 Kbyte
• Realtime clock

Sensor
NTC 20 k

Integrated operator panel

• Fixed on housing
• 4-line display, 16 characters per line
• 8 basic function keys
• 4 quick-access keys (quick access to main menu)

Power supply
24 VAC ±15%, 50/60 Hz
External transformer required
45 VA consumption
Built-in fuse, 5 x 20 mm, 2A quick-blow

Terminals
2 coded terminal blocks, 18 AWG

Ambient limits
Operating: 32 to 113F (0 to 45C), 5 to 95% rh, noncondensing
Storage: -4 to +140F (-20 to +60C), 5 to 95% rh, noncondensing

Dimensions
Housing:

• 4 in. high, 7-³/₄in. wide, 2 in. deep
• (102 mm high, 196 mm wide, 50 mm deep)

Standard cut-out size:

• 3-⁵/₈ in. high, 7-⁵/₁₆ in. wide
• (92 mm high, 186 mm wide)

Mounting
DIN rail or control panel door with Excel 20 accessory kit
 

Home and Building Control
Honeywell Inc.
Honeywell Plaza
P.O. Box 524
Minneapolis, MN 55408-0524 

Home and Building Control
Honeywell Limited-Honeywell Limitée
740 Ellesmere Road
Scarborough, Ontario
M1P 2V9
 

Helping You Control Your World

1-800-345-6770, ext. 901
(U.S. and Canada)