Installation and Operating Instructions
Contents
1. 1 Introduction Amber Switch is an automatic electronic frequency sensing operating control It can be applied to small islanded power systems with renewable generation which produce a variable frequency some inverters for example Amber Switch can switch on additional loads for surplus renewable generation which might otherwise be wasted Amber Switch determines this surplus generation by detecting a rise in the system frequency This may be caused by low load on a generator with frequency droop or an increase in frequency from battery inverters to signal a high state of battery charge Amber Switch incorporates a number of features to help ensure stable operation of an islanded power system e Arrange of switch on setting frequencies are available to create a prioritised system e The switch off frequency is lower than the switch on frequency to avoid constant switching and provide stability e When the frequency goes above the switch on setting there is a delay before the load is connected with a higher frequency causing a shorter delay A similar delay applies at switch off for low frequencies e The delays are randomised to avoid multiple devices switching simultaneously Each time the Amber Switch operates a new random time factor is chosen to help ensure fairness across the entire power system Amber Switch can control loads up to 15A 3 4kW at 230V 1 8kW at 120V The most appropriate loads are heaters water heaters2. Supply cord Load cord b d Figure 4 Connection Terminals Table 3 Terminal Connections Live Neutral Earth Ground Terminal Supply a identifier Load Loui N E Wire colour Europe Brown Blue Green Yellow Page 2 of 2 Installation and Operating Instructions for Amber Switch Amber Switch Type CAS I B inside the base and tighten the gland to secure the cord Strip back the sheath by 25mm and remove 5mm of insulation from each wire Repeat this for the supply cord b 5 Connect the supply cord b to the supply terminals Lin N and E and the load cord to the load terminals Lout N and E Figure 4 Ensure the Live Neutral and Earth Ground wires are connected to the correct terminals Table 3 6 With the aid of a small screwdriver set the frequency setting using the DIP switch Figure 2 referring to Table 2 The allocation of frequencies to loads should be planned before deploying the load controllers to help ensure stable system operation Contact your distributor for further advice 7 Fit the cover ensuring that all the screws are tight 8 Reconnect the supply circuit 5 Maintenance The Amber Switch is completely maintenance free with no user serviceable parts The Amber Switch should be inspected for damage or deterioration every 24 months 6 Specification This specification is declared in accordance with the definitions of BS EN 60730 1 2000 Regulatory Compliance LV Directive 2006 95 EC EMC
3. COVER UNLESS THE AMBER SWITCH IS ISOLATED FROM THE POWER SUPPLY Amber Switch should be independently surface mounted and connected to a circuit fitted with a fuse or MCB with rating 15A or less using flexible cords Figure 3 Amber Switch may be used with a fixed appliance or a socket which enables portable appliances to be plugged in The term controlled load is used to describe both of these options Follow any installation instructions for the controlled load and any local regulations Ensure that the supply and load cords b and d in Figure 3 are appropriate for the protection rating of the circuit 1 If the controlled load is pre existing isolate the circuit which supplies it and disconnect the supply cord from the fused spur or cord outlet a in Figure 3 This will become the load cord d 2 If the controlled load is new ensure there is a suitable fused spur or flexible cord outlet to supply the load and that it is isolated from the supply Install the controlled load e with the load cord d following any manufacturer s instructions 3 Remove the cover from the Amber Switch and mount the base on the wall c adjacent to the controlled load e 4 Fit the load cord d from the controlled load through a gland in the Amber Switch base Ensure that 120mm of cord protrudes Figure 3 Connection of Amber Switch Fused Spur or cord outlet a Amber Switch c E E LinLout N_N Controlled Load e
4. Directive 2004 108 EC RoHS Directive 2011 65 EU A CE mark is affixed to the Amber Switch indicating conformity with the above directives Electrical Limits Supply voltage 205 255 VAC Supply frequency f 45 65 Hz Maximum load Imax 15A Rated impulse voltage 1 5 kV Environmental Conditions IP Rating IP20 Ambient temperature 0 30 C No of cycles 300 000 Aging 60 000 hrs Type of load substantially resistive pf 20 95 Mounting Independent surface mounting Electrical connections Cable glands cable diameter 6 10mm Stranded cable all terminals 0 2 25 mm 30 12 AWG Characteristics Switch on frequency fon 49 75 to 51 5 59 75 to 61 5 Hz in 0 25 Hz steps Switch off frequency foff lt fon 0 25 Hz Switch on time ton lt 14 f fon S Switch off time toff lt 14 foff f S Automatic action Type 1 C micro interruption Software class Class A 62111 C01 U001 v0 4a draft 01
5. he supply is restored the appliance may operate for a few seconds while the Amber Switch powers up At that point the appliance will be switched off while the Amber Switch assesses the supply frequency If the frequency is above the switch on setting the normal switch on delay will apply and then the appliance will be switched on 3 Settings Only one user adjustable setting is provided switch on frequency and this is only accessible during installation see section 4 Under normal circumstances it should not be necessary to adjust the setting once it has been set during installation The setting is achieved through a DIP switch see Figure 2 Table 2 shows the positions for each frequency setting In the Figure 2 example all the switches are OFF down representing a setting of 61 5 Hz DO NOT REMOVE THE COVER OR ADJUST SETTINGS UNLESS THE AMBER SWITCH IS ISOLATED FROM THE POWER SUPPLY Figure 2 Setting DIPSwitch Table 2 Frequency Settings Setting 1 2 3 4 Setting 1 2 3 4 49 75Hz ON ON ON ON 59 75Hz OFF ON ON ON 50 25 ON ON OFF ON 50 75 ON OFF ON ON 60 75 OFF OFF ON ON 51 25 ON OFF OFF ON 61 25 OFF OFF OFF ON Amber Control Limited Company No 08381101 Registered office 4 Butt Bank Fourstones Hexham NE47 5DN 4 Installation Amber Switch should be installed by a competent person If in doubt consult a qualified electrician and always adhere to local regulations DO NOT REMOVE THE
6. storage heaters space heaters Appliances with pumps are not appropriate due to the potential for frequent switching of loads There are 8 selectable frequencies for the 50Hz band and 8 for the 60Hz band For a small number of loads with equal priority the default setting of 51Hz may be used For systems with many loads different priorities may need to be set by the system manager For instance it might be decided that immersion heaters are given highest priority lowest frequency then portable space heaters and finally fixed space heaters highest frequency Figure 1 Schematic Arrangement of Amber Switch Lin gt a N Q Q O D E Table 1 LED states LED state System state Load Amber LED steady Frequency low Off Green LED steady Frequency high On Installation and Operating Instructions Amber Switch Type CAS I B 2 Description of Operation Amber Switch is a completely autonomous device which requires no user intervention It will switch the load on when the system frequency is high and switch it off when the frequency is low as described in the Introduction Indications Two LEDs indicate the operating state of the device see Table 1 Faster flashing of the amber LED indicates a shorter time to switch slower flashing indicates that it will take longer to switch on Loss of Supply As would be expected any appliance or load fed through the Amber Switch will switch off when the supply is lost When t
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