1. General Introduction
ABB V18345 valve positioner is Hart communication type with Fail-safe safety and Fail-freeze function .It is an electronically configurable positioner with communication capabilities designed for mounting on pneumatic linear or rotary actuators, features a small and compact design, a modular construction, and an excellent cost-performance ratio. Fully automatic determination of the control parameters and adaptation to the positioner allow for considerable time savings as well as optimum control behavior.
The positioner has a local communication interface (LCI) as standard. Additionally, a HART communication option for communication via the 20 mA signal is available. Both communications are based on the HART Protocol, and HART5 or HART7 are available. An I/P module with subsequent pneumatic amplifier is used to control the pneumatic actuator. The well-proven I/P module proportionally converts the permanent electrical setpoint signal from the CPU into a pneumatic signal used to adjust a 3/3-way valve. Dosing of the air flow for pressurizing or depressurizing the actuator is continuously adjusted. As a result, excellent control results are achieved. When reaching the set point, the 3/3-way valve is closed in center position to minimize the air consumption. The pneumatic system can be supplied in four versions: for single acting and double acting actuators and each with the fail-safe and fail-freeze safety function.
2. Selection table of ABB V18345 valve positioner
Main Code | Suffix Codes | Description | |||||||
V18345 | TZIDC digital positioner, intelligent, configurable | ||||||||
Case / Mounting | 10 | Case made of aluminium, varnished | |||||||
20 | Case made of aluminium, varnished, with mechanical position indicator | ||||||||
30 | Case made of aluminium, varnished, for integral mounting to control valves | ||||||||
40 | Case made of aluminium, varnished, with mechanical position indicator, for integral mounting to control valves | ||||||||
70 | Remote sensor control unit | ||||||||
Input / Communication | 1 | Input 4 to 20mA, two-wire, with connector plug for LCI adapter | |||||||
2 | Input 4 to 20mA, two-wire, with connector plug for LCI adapter and FSK module for HART communication | ||||||||
Explosion Protection | 0 | Without | |||||||
1 | ATEX II 2 G Ex ib IIC T6 resp. T4 Gb | ||||||||
2 | FM / CSA | ||||||||
5 | IECEx Ex ib IIC T6 resp. T4 Gb | ||||||||
7 | ATEX II 2 G Ex ia IIC T6 resp. T4 Gb | ||||||||
H | EAC TR-CU-012 Ex ia IIC T6/T4 Gb | ||||||||
J | EAC TR-CU-012 Ex ib IIC T6/T4 Gb | ||||||||
K | IECEx ia IIC T6 resp. T4 Gb | ||||||||
U | NEPSI Ex ia II CT4/T5/T6 Gb | ||||||||
V | NEPSI Ex ib II CT4/T5/T6 Gb | ||||||||
P | INMETRO Ex ia IIC Gb / Ex ib IIC Gb | ||||||||
Output / Safe Position | 1 | Single acting, fail safe | |||||||
2 | Single acting, fail freeze | ||||||||
4 | Double acting, fail safe | ||||||||
5 | Double acting, fail freeze | ||||||||
Connections | 2 | Cable: Thread ½-14 NPT, air pipe: Thread ¼-18 NPT | |||||||
5 | Cable: Thread M20 × 1.5, air pipe: Thread ¼-18 NPT | ||||||||
6 | Cable: Thread M20 × 1.5, air pipe: Thread G ¼ | ||||||||
7 | Cable: Thread G ½, air pipe: Thread Rc ¼ | ||||||||
Option Modules | 0 | Without | |||||||
1 | Plug-in module for analog position feedback, signal range 4 to 20mA, two-wire | ||||||||
3 | Plug-in module for digital position feedback | ||||||||
5 | Plug-in module for analog position feedback, signal range 4 to 20mA, two-wire, and digital position feedback | ||||||||
Optional Mechanical Kit | 00 | Without | |||||||
10 | Mechanical kit for digital position feedback with proximity switches | ||||||||
50 | Mechanical kit for digital position feedback with 24 V AC / DC micro switches | ||||||||
Design | 1 | Standard | |||||||
H | Higher Stiffness + Lower Air Capacity | ||||||||
P | Protection Class IP 66 / NEMA 4X | ||||||||
S | Increased Corrosion Protection | ||||||||
Optional codes | Optional codes | ||||||||
3. Block diagram of ABB V18345 valve positioner
4. Liner & Rotary actuator &Integral valve mounting of ABB V18345 valve positioner
