STS18 User Manual
Contents
1. 7 1 Guideway Isolate barrier is installed on the standard international generic M35 Guideway 7 2 Terminal lead The cross sectional area of soft copper wires which connect to field must be greater than 0 5mm2 The insulation strength of connecting wires must be greater than 1500V 7 3 Installation notes a Isolate barrier should be put in a safe place to ensure the cleaning and no corrosive gas b The circuit wiring of intrinsic ends blue and non intrinsic ends yellow of the isolate barrier c d e f g is prohibited from wrong and confusion The intrinsic safe leads should use the blue as the marking intrinsic leads and non intrinsic leads should be installed separately in the leads slot and use different casing tubes The intrinsic safety side of isolate barrier is not allowed to have a mixture of other power including other power supply with intrinsic safety current When the isolate barriers are with concentrated layout it should make the intrinsic side adjacent with the intrinsic side and non intrinsic side adjacent with the non intrinsic side to avoid the confusion On the separate power supply debugging of isolate barrier it is important to pay attention to the model power polarity voltage grading and connector tab on the shell of isolate barriers It is forbidden to test the insulation between the terminals of isolate barrier with insulation ohmmeter to check the insulation of the system lines it shou2. 1 Summary STS18 121 switch input single channel isolation safety barrier receives the switch input comes from danger zone the safety barrier isolated output provides relay contact output in safety zone 2 Technical Specifications Channel Single channel Area of switch Zone0 IIC T4 6 danger zone Zone 1 Group A Danger zone Danger zone signal input Apply to switch dry contact input Supply voltage 7 0 9 0V Open Circuit Short current 8mA Safety zone relay output features Respond time lt 20ms Contact power 250VAC 2A 40VDC 2A Input and output features Input open output relay close yellow light on Input close output relay open yellow light off LED display Green Source indication Yellow Path state Turn on when output is energized Source 20 35VDC Power consumption 24V 35mA Safety Specifications Uo 8 61V lo 9 8mA Po 21 1mW Co 5 9uF Lo 150mH 3 Signal Connections EK29718 121Connection Chart Danger Zone Safety Zone 5 STS18 121 Terminal Functions Terminal Number Terminal Function 5 Power Safety Zone 6 Power Yellow 3 Relay Output 4 Relay Output Danger Zone 14 Input Signal Blue 15 Input Signal 6 Dimensions 114 213 4 Li O ITE p 9 1011 12 3 14 15 16 QY G yi I 100 je STS Series isolate barrier size chart 7 Installations
3. ld disconnect all isolate barriers at first otherwise it would cause the fuse of internal instant fuse If the internal module of isolate barrier is damaged and needs replacement it is needed to return to the factory for repairing The repaired isolate barriers should have a comprehensive re examination before being put into operation The installation use and maintenance of isolate barrier should strictly abide by the relevant contents of GB3836 15 2000 Part 15 of Explosive Gas Electrical Equipment Dangerous place electrical installation except mine GB50058 1992 Electrical Equipment design code of Explosion and Fire Risk Environment and product brochures 2 8 Package and Storage 8 1 Isolate barriers should be packed with transparent plastic bags and put in the special packing boxes 8 2 Isolate barriers should be stored in a ventilation indoor environment with ambient temperature of 5 40 C and relative humidity less than 85 and without corrosive gases in the air 8 3 Attachment A copy of product brochure A copy of product certification 9 Warranty The normal product warranty period is 18 months the damage caused by improper use is not within the scope of warranty
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