IC754VSI12VTD燃机触摸屏
1.如果传感器局部接地，则接地螺柱或穿过传感器外壳或安装件，以避免接地回路
电缆的屏蔽护套只能在以下位置连接：一端。即在传感器处或在接口/中继卡处。
2.Optima模拟输出为非隔离输出，出厂配置为电流宿或电流源。实际情况配置由Optima white上的标签标识4-20mA输出引线。三线控制卡电流源、变送器电流接收器连接
Searchpoint Optima（返回到稳压+23V电源的信号）
单通道控制卡4-20mA 05701-A-0301
配备4-20mA传感器驱动器05701-A-0283
输出连接
14.1继电器输出注：1.故障继电器永久配置为正常
在非故障条件下通电运行。
2.除非安装了高完整性继电器卡，否则禁止
继电器（如安装）永久配置为正常非禁止条件下的断电操作。
3.报警继电器可配置为正常通电或正常断电操作。参考
配置打印输出或使用的继电器屏幕确定配置的工程接口软件。
注意安全
当交流电源连接到继电器触点时：
a、 交流电源应最大熔断5A。
b、 应将安全接地连接至地面中继卡的终端。
有四种继电器卡类型，提供不同级别的报警继电器能力（见第2章第5节）。
继电器的电缆应尽可能远离传感器电缆，尤其是那些承载主电源的电缆。这个
下图显示了继电器触点连接，如上所示
接线板
报警继电器可配置为正常断电或正常通电操作。检查提供的配置表
利用系统确定继电器的工作模式
每个信道。继电器的通电模式可以重新配置
轻松使用连接到工程端口的计算机。联系Zellweger Analytics或您当地的代理商了解更多信息。显示触点位置的断电和通电继电器
Note: 1. Where a sensor is earthed locally, either to the Earth Stud or
through the sensor casing or mounting, to avoid earth loops
the screen sheath of the cable should only be connected at
one end. ie. At the sensor or at the Interface/relay Card.
2. The Optima analogue output is non isolated and is factory
configured as current sink or current source. The actual
configuration is identified by a label on the Optima white
4 - 20mA output lead. Three Wire Control Card Current Source, Transmitter Current Sink Connection for
Searchpoint Optima (Signal Returned to Regulated +23V Supply)
Single Channel Control Card 4 - 20mA 05701-A-0301
Fitted with 4 - 20mA Sensor Drive 05701-A-0283
OUTPUT CONNECTIONS
14.1 Relay Outputs
Note: 1. The FAULT relay is permanently configured for normally
ENERGISED operation in the non-fault condition.
2. Unless the High Integrity Relay Card is fitted, the INHIBIT
relay (where fitted) is permanently configured for normally
DE-ENERGISED operation in the non-inhibit condition.
3. The Alarm relays may be configured for either normally
energised or normally de-energised operation. Refer to the
configuration printout or use the relays screen of the
Engineering Interface Software to determine the configuration.
CAUTION
When mains ac is connected to the relay contacts:
a. The ac supply should be fused at 5A maximum.
b. A safety earth connection should be made to the ground
terminal of the relay card.
There are four relay card types providing different levels of alarm relay
capability (See Chapter 2 Section 5).
The cabling to the relays should where possible be kept away from the
sensor cabling, especially those cables carrying mains supplies. The
following figure shows the relay contact connections as shown on the
terminal block.
The alarm relays may be configured for either normally de-energised or
normally energised operation. Check the configuration sheet supplied
with the system to determine the operating mode of the relays on
each channel. The energisation mode of the relays can be reconfigured
easily using a computer attached to the Engineering Port. Contact
Zellweger Analytics or your local agent for more information.
De-energised and Energised Relays Showing Contact Positions
