产品型号:AO845A
货号:3BSE045584R1
类别描述: 模拟输出模块
产品成色:全新,非全新
质保:一年
库存:有
品牌:ABB
尺寸
宽度 45毫米(1.77英寸)
深度 102 mm (4.01“), 111 mm (4.37”) 包括连接器
高度 119毫米(4.7英寸)
重量 0.21 千克(0.46 磅)
细数据
分辨率 12 位
隔离 分组与地面隔离
低于/超出范围 -12.5% / +15%
输出负载 最大 750 Ω
错误 最大 0.1%
温度漂移 最大 50 ppm/°C
上升时间 输出滤波器:禁用 23 ms,启用最大 4 mA / 12.5 ms
输入滤波器(上升时间 0-90%) 23 ms (0-90%),最大 4 mA / 12.5 ms
更新周期时间 10 毫秒
电流限制 短路保护限流输出
最大现场电缆长度 600米(656码)
额定绝缘电压 50 伏
介电测试电压 500 V 交流电
功耗 典型值 3.5 W
AO845/AO845A 模拟量输出模块适用于单极或冗余应用,具有 8 个单极性模拟输出通道。该模块周期性地执行自诊断。模块诊断包括:
如果向输出电路提供电压的过程电源太低,或者输出电流小于输出设定值和输出设定值 1 mA(开路),则会报告外部通道错误(仅在活动通道>报告)。
如果输出电路无法给出正确的电流值,则会报告内部通道错误。在冗余对中,模块将由 ModuleBus 主机命令进入错误状态。
如果出现输出晶体管错误、短路、校验和错误、内部电源错误、状态链接错误、看门狗或错误的 OSP 行为,则会报告模块错误。
特点和优势
8 个 4...20 mA 通道
适用于单一或冗余应用程序
1 组 8 个通道,与地面隔离
模拟输入短路保护至 ZP 或 +24 V
HART直通通信
Product model: AO845A
Item number: 3BSE045584R1
Category Description: Analog output module
Product color: new, not new
Warranty: One year
Stock: Yes
Brand: ABB
dimension
Width 45 mm (1.77 in)
Depth 102 mm (4.01 "), 111 mm (4.37 ") including connector
Height 119 mm (4.7 in)
Weight 0.21 kg (0.46 lb)
Fine data
Resolution 12 bits
Isolation groups are isolated from the ground
Below/out of range -12.5% / +15%
The maximum output load is 750 Ω
Error maximum 0.1%
Maximum temperature drift of 50 ppm/°C
Rise time output filter: Disable 23 ms, enable maximum 4 mA / 12.5 ms
Input filter (rise time 0-90%) 23 ms (0-90%), Max 4 mA / 12.5 ms
The update cycle time is 10 milliseconds
Current limiting Short circuit protection Limited current output
Maximum field cable length 600 meters (656 yards)
Rated insulation voltage 50 volts
Dielectric test voltage 500 V AC
Typical power consumption is 3.5W
The AO845/AO845A analog output module is suitable for unipolar or redundant applications with eight unipolar analog output channels. The module performs self-diagnosis periodically. Module diagnostics include:
If the process power supply providing voltage to the output circuit is too low, or if the output current is less than the output setpoint and output setpoint 1 mA (open circuit), an external channel error is reported (Active channel > Report only).
If the output circuit cannot give the correct current value, an internal channel error is reported. In a redundant pair, the module will enter an error state by the ModuleBus host command.
A module error is reported if an output transistor error, short circuit, checksum error, internal power error, status link error, watchdog, or faulty OSP behavior occurs.
Characteristics and advantages
Eight fours... 20 mA channel
Suitable for single or redundant applications
1 group of 8 channels, isolated from the ground
Analog input short-circuit protection to ZP or +24 V
HART direct communication
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