25-10 Features BAS-3520C 20-ch Web

BAS-3520C
20-ch Web-enabled Chiller DDC Controller
Features
NEW
ƒƒ Standalone programmable controller
ƒƒ BASPro programming software provides BA domain function (scheduler,
HVAC calculation, sequence…)
ƒƒ Auto-tuning PID control
ƒƒ Calendar schedule control
ƒƒ Alarm and event notifications
ƒƒ Provides RS-485 to connect with remote I/O devices
ƒƒ Up to 3 local I/O expansion modules
ƒƒ Remote programming and maintenance through Ethernet
ƒƒ LCM display (optional)
RoHS
COMPLIANT
2002/95/EC
Introduction
BAS-3520C is a standalone programmable controller specially designed for HVAC Chiller Control applications. Designed as a typical DDC (Direct Digital Controller), BAS-3520C
delivers various of onboard I/O including universal input, and digital output, providing flexible options to satisfy versatile application requirements. It also features powerful BASPro
programming tool for engineers to quickly develop their application. BASPro delivers many function blocks suitable for BA application, such as scheduler, HVAC calculation, sequential
control, PID control, alarm, and event. Its compact size makes it an ideal solution to fulfill chiller plant control applications. The I/O expansion modules (BAS-3018, BAS-3024, BAS3050, BAS-3051 and BAS-3060) provide more I/O points and make the system a scalable solution.
Specifications
General
Digital Output
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ƒƒ Channels
8 ( Form A)
ƒƒ Breakdown Voltage
1000 VAC (50/60 Hz)
ƒƒ Contact Rating
AC: 5 A @ 250 V
(Resistive)
DC: 5 A @ 30 V
ƒƒ Initial Insulation
1G ohm min @ 500 VDC
Resistance
ƒƒ Relay Off Time
5.6ms (Typical)
ƒƒ Relay On Time
5.6ms (Typical)
ƒƒ Maximum Operating 6 operations/min (@ related load)
Speed
ƒƒ PWM Output (2 channels)
Minimum Period
1 second (for PWM output)
Minimum Pulse Width
0.5 second (for PWM output)
Dimension (W x H x D) 176 x 120 x 44 mm(6.93" x 4.72" x 1.73")
Enclosure
ABS + PC
Power Input
24 VDC/24 VAC
Power Consumption
10 W @ 24 VDC
Real-time Clock
Yes
Watchdog Timer
Yes
I/O Isolation Protection 500 VDC For Relay Digital Output
3000 VDC For Universal Input
Hardware
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CPU
Flash Memory
RAM
Battery Backup SRAM
32-bit CPU 312 MHz
32 MB
64 MB SDRAM
512 KB
Communication
ƒƒ LAN
ƒƒ RS-485
ƒƒ Communication Protocol
LCM Operation Unit (Optional)
1 x 10/100Base-T (RJ-45)
1 (isolated)
Modbus/TCP, Modbus/RTU
Environment
Universal Input
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Channels
12
Resolution
16-bit
Sample Rate
10 Hz (Total)
Accuracy
±0.1% of FSR (Voltage, Current)
Type and Range
Analog Input
0 ~ 10 V, 0 ~ 20 mA, 4 ~ 20 mA, Pt-100 RTD,
Pt-1000 RTD, Thermistor (3 k, 10 k)
Digital Input
Logic High: Close
(Dry Contact)
Logic Low: Open
ƒƒ Over Voltage Protection±35 V
ƒƒ Span Drift
±25 ppm/° C
ƒƒ Zero Drift
±6 μV/° C
25-10
ƒƒ 2 line x 8 char, backlit LCD
ƒƒ 5 button keypad
ƒƒ Hot swap capable
Building Automation Systems
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Operating Temperature -10 ~ 60° C (14 ~ 140° F) (with airflow)
Storage Temperature -20 ~ 75° C (-4 ~ 167° F)
Operating Humidity
20 ~ 95% (Non-condensing)
Storage Humidity
0 ~ 95% (Non-condensing)
Ordering Information
ƒƒ BAS-3520C-AE
ƒƒ BAS-3595-AE
20-ch Web-enabled Chiller DDC Controller
LCM operation unit (Optional)