Document Overview and Product Positioning
1.1 Core positioning of the document
Document number: UM-V200-E001, initial version released in January 2012, is a technical guide for the entire lifecycle of V200 series PLCs, covering the entire process from unboxing installation to fault maintenance.
Target audience: Qualified Person operators are required, who possess electrical equipment installation/maintenance skills and have received safety training (in compliance with NFPA 70E standards).
1.2 Core Product Parameters
The V200 series is divided into basic models and extended models. The core parameters of the basic models are compared as follows:
Basic model, local I/O configuration, expansion capability, communication interface, high-speed counting capability, size (mm), weight (gm)
GPU288 * 3S 8-in (digital)/8-out (6 relays+2 transistors) supports 8 expansion modules COM1 (RS232/RS485), COM2 (RS485), USB 2-channel single-phase (50kHz), 1-channel orthogonal (5kHz) 100 × 35 × 70 200
GPU232 * 3S 16 in (digital)/16 out (digital) without expandability COM1 (RS232), COM2 (RS485), USB 2-channel single-phase (50kHz) 155 × 102 180
GPU200 * 3S without local I/O support 8 expansion modules COM1 (RS232/RS485), Ethernet, USB 2-channel single-phase (100kHz) 100 × 35 × 70 200
The expansion models include digital expansion (such as GDI216S: 16 digital inputs) and analog expansion (such as GAD208S: 8 analog inputs), supporting flexible configuration of I/O points.
Safety operation standards (top priority)
2.1 Definition of Warning Signs
The document specifies the risk level through "identification+text", and all identification is printed on the equipment body and key positions in the manual:
Core meaning of warning signs Typical scenarios
DANGER operational errors can result in death or serious injury (such as high-voltage electric shock, fire). Opening terminal covers and contacting high-voltage components when powered on
Incorrect operation of Warning may result in serious injury or equipment damage (such as device falling or burning). Handheld terminal cover handling or touching the heat sink
CAUTION operation errors can result in minor injuries or equipment malfunctions (such as loose terminals, electrostatic damage), ungrounded operations, and wiring errors
2.2 Core Security Rules
Prohibited operation list:
Do not open the power terminal cover (which contains 24VDC high-voltage components) when powered on.
Do not insert foreign objects such as wires, tools, dust, etc. into the ventilation openings or terminal slots of the equipment (to prevent short circuits).
It is prohibited to disassemble or modify hardware without authorization (such as replacing non original capacitors), as this will result in warranty failure and safety risks.
It is prohibited to use unverified models in explosion-proof environments (such as flammable gas areas).
Mandatory operation checklist:
Before installation/maintenance, it is necessary to read the manual thoroughly and confirm that the operator is a Qualified Person.
After power failure, wait for at least 15 minutes and use a multimeter with 800Vdc or higher to check that the voltage of the DC main circuit (PA/+and PC/-) is ≤ 45V before operation.
Reliable grounding is required: D-type grounding is used for 240V level, C-type grounding is used for 500/600V level, grounding resistance is ≤ 4 Ω, and the grounding wire specification is not less than the main circuit wire.
When enabling the Auto restart function, a warning label stating 'Possible sudden restart' should be affixed next to the device.

Hardware installation and wiring
3.1 Installation environment requirements
The allowable range of environmental indicators and the prohibited range
Environmental temperature 0 ℃~55 ℃ (operation), -20 ℃~85 ℃ (storage) exceeding 55 ℃ (triggering overheating protection), below -20 ℃ (capacitor failure)
Relative humidity 20%~90% (no condensation) Condensation environment, humidity>90% (causing short circuit)
Vibration requirement ≤ 5.9m/s ² (5-150Hz) exceeding 5.9m/s ² (additional anti vibration pads need to be installed)
Environmental cleanliness without dust, metal powder, corrosive gas, dense dust, and oil mist environment (blocking heat dissipation)
3.2 Wiring specifications
Main circuit wiring:
Power input: 24VDC ± 15%, requires separate wiring (threaded separately from the control circuit), terminal screw torque: M3 is 0.5N · m, M4 is 1.4N · m.
Digital input: 24VDC, current per point 5mA (high-speed input 20mA), input impedance 5.4k Ω (high-speed input 1.2k Ω).
Digital output: Relay type (230V/2A, 30VDC/2A), transistor type (24VDC/0.5A), output terminals need to be wired according to the "set of common terminals every 4 points".
Communication wiring:
RS485: 2-wire system, maximum transmission distance of 1200m, supports 32 nodes, requires 120 Ω terminal resistors to be connected at both ends of the bus.
USB: For programming only, using USB 2.0 Type B interface, cable length ≤ 2m.
Ethernet (GPU200 * 3S): RJ45 interface, supports 10/100Mbps adaptive, requires shielded Ethernet cable.
Email:wang@kongjiangauto.com