SSV-DC user manual
Contents
1. 5 F 25 to 51 C High temperature alarm F C 95 0 Low temp alarm to 125 F 51 C Low temperature alarm F C 80 0 13 F 25 C to high temp alarm Using manual mode Manual mode allows you to override the automatic settings Manual mode is useful for testing equipment or other special situations 1 Press the encoder knob until PAr displays 2 Turn the knob clockwise until the LED for Alarm is lit 3 Press the knob The control enters manual mode and the LED for Alarm flashes 4 Turn the knob clockwise to increase or counterclockwise to decrease the output 5 Press the knob to leave manual mode The display shows F Ar 6 Press the knob to return to the temperature display 6 2015 11 27 Phason SSV DC user manual Troubleshooting When there is an alarm condition the Alarm LED flashes an error code displays and the alarm relay activates When the condition goes away the alarm relay deactivates and the Alarm LED switches off but the message continues to display until acknowledged by pressing the knob Nowe When there is a probe damage or short condition the control operates at 20 If you are having a problem using the SSV DC check if the problem is described in the following table and then follow the directions for correcting the problem Problem alarm code Possible cause Possible solution lt Ambient temperature is too high lt Increase ventilation cooling bf High temper2. Phason SSV DC user manual The SSV DC has a 0 to 10 VDC signal output and a disconnect relay that allows you to easily and effectively control up to 10 variable frequency drives slave units modulating valves or other equipment that requires a DC signal The knob allows you to easily move between and adjust settings while the programming lights show which settings you are editing The two LED displays show temperatures signal output programming information and alarm codes Features gt gt gt gt gt Automatic temperature based control with extended range 13 to 125 F 25 to 51 C Variable 0 to 10 V output Capacity for up to 10 devices Disconnect relay for start stop signal Alarm relay for external alarm system or siren Three second full power turn on to minimize fan ice up Three character LED display Status and programming LEDs Error code display Power failure protection will not lose settings Six foot temperature probe extendable to 500 feet Rugged NEMA 4X enclosure corrosion resistant water resistant and fire retardant cCSAus approval Limited warranty two years Electrical ratings Input power 120 230 VAC 50 60 Hz Signal output 0 to 10 VDC 2K Q load Disconnect relay 5A at 250 VAC 5A at 30 VDC resistive load 2A at 250 VAC 2A at 30 VDC inductive load Alarm relay 0 4 A at 125 VAC 2 A at 30 VDC resistive load 0 2 A at 125 VAC 1 A at 30 VDC inductiv
3. ature alarm setting is lt Increase the high temperature alarm setting D l too low For more information read Programming the SSV DC on page 5 High temperature alarm lt Ambient temperature is too low lt Decrease ventilation cooling increase _ Low temperature alarm setting is heating D j too high Decrease the low temperature alarm setting For more information read Programming the Low temperature alarm SSV DC on page 5 r The temperature probe is damaged lt Check the wire between the control and the D 4 missing or the connecting wire is probe Wire damage can cause the alarm lt D Cy j j broken The temperature probe Replace or reconnect the temperature probe saa Circuit is open The control should recover automatically Probe damage alarm The temperature probe is damaged lt Check the wire between the control and the ay ___ 4 mi D The temperature probe circuit is probe Wire damage can cause the alarm closed Replace the temperature probe The control should recover automatically Probe short alarm Power supply components Power surge brownout or Avoid the problem in future by providing blown out burn marks on power outage proper voltage and surge protection for the boards and components control Motors and fans slow down or stop No power display A Circuit breaker at service panel lt Reset the circuit breaker is off or tripped Incorrect incoming power wiring l
4. connect up to 10 devices variable frequency drives modulating valves or similar equipment to a single SSV DC Connect the equipment as shown below ka saas aadi To next VFD ellelleleliele daisy chain a ae E Temp 0 10VDC Relay H Sensor Output be 0 to 10 VDC analog input 32740003 3 SSV DC user manual Phason Connecting an alarm system An alarm system can be a siren an alarm panel or an auto dialer See your alarm siren s installation guide for installation instructions and information about the type of system normally open or normally closed The descriptions for the alarm terminal are as follows CC common connection CA closed on alarm OA open on alarm If you are connecting the alarm system to a network of controls and your system uses a normally open connection closes on alarm connect the system as shown in the normally open diagram Join all the common CC connections together and all the closed on alarm CA connections together The SSV DC alarm relays must be in parallel with each other so any control can trigger the alarm system when an alarm condition occurs If you are connecting the alarm system to a network of controls and your system uses a normally closed connection opens on alarm connect the system as shown in the normally closed diagram Join the alarm relays in a continuous loop The SSV DC alarm relays must be in series with each other so any control ca
5. e load 32740003 SSV DC user manual Phason Common applications The SSV DC has applications in livestock greenhouse and light industrial buildings Ventilation systems that use three phase motors often use a variable frequency drive VFD The SSV DC can control VFDs with its 0 to 10 VDC output For applications that use single phase permanent split capacitor PSC motors the SSV DC can control the motors using a triac based slave with DC input such the Phason FanDRIVE The SSV DC can also control electronically commutated motors ECMs using its 0 to 10 VDC output Installing the SSV DC Power terminal connect the incoming power 120 230 VAC 50 60 Hz to this terminal Temperature terminal connect the temperature probe to this terminal 0 to 10 terminal connect variable frequency drives modulating valves or other equipment that requires a 0 to 10 VDC input signal Disconnect terminal if the equipment connected to 3 requires a disconnect switch connected to this terminal Alarm terminal connect an external alarm system or alarm siren to this terminal Temperature selector place the jumper on the top two pins for Celsius or on the bottom two pins for Fahrenheit amen he OA GA CC ALARM a ama e leli e Before connecting the incoming power switch OFF d J 4 the power at the source gt Do not switch ON the power until you have finished all wiring and verifi
6. ed all equipment is properly IN NO CO Temp 0 10VDC Relay ig connected and free of Sensor Output obstructions Replace damaged probes as soon as possible If there is no probe present or working properly the SSV DC displays either Fg or FS and the O to 10 V output operates at 20 2 2015 11 27 Phason SSV DC user manual Mounting the SSV DC 1 Loosen the screws from the front cover and then lift it off 2 Mount the enclosure to a wall using the four screws provided with the control Insert the screws into the holes in the mounting tabs at the top and bottom of the enclosure and then tighten Selecting the temperature unit The SSV DC can operate in either degrees Fahrenheit F or degrees Celsius C but not both at the same time The default is Fahrenheit Locate the UNITS pins in the top left corner of the circuit board For Celsius place the jumper on the top two pins For Fahrenheit place the jumper on the bottom two pins Connecting equipment to the SSV DC The SSV DC has a 0 to 10 VDC signal output and disconnect relay for controlling variable frequency drives modulating valves or other equipment requiring a 0 to 10 V DC signal The disconnect relay is not for controlling fans heaters or other equipment When the 0 to 10 VDC sional output is at 0 the relay sends a stop signal closes the disconnect relay to the equipment you are controlling with the variable output You can
7. n trigger the alarm system when an alarm condition occurs 4 2015 11 27 Phason SSV DC user manual Programming the SSV DC If you are connecting a variable frequency drive VFD that has a programmable startup ramp and want to take advantage of the deicing feature three second full power turn on you must set the ramp duration as short as possible preferably less than 0 1sec How the SSV DC operates When the temperature is below the idle range the fan in other words DC output is off When the temperature is below the low alarm the alarm relay activates the Alarm LED lights up and the display flashes between the temperature and La When the temperature reaches the idle range the fan runs at the idle speed The fan continues to run at the idle speed until the temperature rises to the set point When the temperature is between the set point and differential fan speed increases or decreases proportionally with the temperature When the temperature is at or above the differential the fan runs at full speed When the temperature is above the high alarm the alarm relay activates the Alarm LED lights up and the display flashes between the temperature and H i The alarm relay activates when the temperature is above the high alarm temperature High alarm temperature The fan runs at full speed a ap _ rrrrraam0m0q0 qOmaaaaaaas Differential temperature Fan s
8. peed increases as the temperature rises or decreases as the temperature falls H_ _ _ A Set point temperature The fan runs at idle speed The temperature band between the idle range temperature and the set point is sometimes called the idle band D _ Idle range temperature The fan is off when the temperature is below the idle range temperature eo Idle speed Fan speed gt 0 100 a Low alarm temperature The alarm relay activates when the temperature is below the low alarm temperature 32740003 5 SSV DC user manual Phason To program the control 1 Press the encoder knob until PAr displays 2 Turn the knob clockwise until the LED for the setting you want to program is lit 3 Press the knob to select the setting The control enters edit mode and the LED for the setting flashes 4 Turn the knob clockwise to increase or counterclockwise to decrease the value Press the knob to save the setting and leave edit mode The display shows F Ar 6 Repeat steps 2 to 5 for each setting you want to program 7 When finished press the knob to return to the temperature display Factory defaults Setting Default Range options Stage 1 idle speed 20 0 to 100 Stage 1 idle range F C 80 0 13 to 125 F 25 to 51 C Stage 1 set point F C 85 0 13 to 125 F 25 to 51 C Stage 1 differential F C 86 5 13 to 12
9. rvice and technical support Phason will be happy to answer all technical questions that will help you use your SSV DC Before contacting Phason Read the manual for information about the feature with which you are having trouble If the control is not operating properly read Troubleshooting on page 7 and then follow the directions to correct the problem Phason controls are designed and manufactured to provide reliable performance but they are not guaranteed to be 100 percent free of defects Even reliable products can experience occasional failures and the user should recognize this possibility A If Phason products are used in a life support ventilation system where failure could result in loss or injury the user should provide adequate back up ventilation supplementary natural ventilation or an independent failure alarm system The user s lack of such precautions acknowledges their willingness to accept the risk of such loss or injury Phason Inc 2 Terracon Place Winnipeg Manitoba Canada Phone 204 233 1400 E mail Support phason ca R2J 4G7 Fax 204 233 3252 Web site www phason ca 8 2015 11 27
10. t Correct the wiring Display showing unusually The probe is not a Phason Remove the probe and then install a Phason high or low temperature probe probe The extension cable connected lt Check the extension cable connection and re to the temperature probe is solder it if necessary providing a poor connection Damaged probe Replace the temperature probe 32740003 7 SSV DC user manual Phason Problem alarm code Possible cause Possible solution Variable fan runs at Incorrect wiring Correct the wiring For more information read maximum Connecting equipment to the SSV DC on page 3 Idle speed is too high Decrease the idle speed setting For more information read Programming the SSV DC on page 5 Variable fan not running Incorrect wiring Correct the wiring For more information read Connecting equipment to the SSV DC on page 3 Idle speed setting is too low Increase the idle speed setting For more information read Programming the SSV DC on page 5 Idle range temperature setting is lt Decrease the idle range temperature setting For too high more information read Programming the SSV DC on page 5 Temperature set point is above lt Adjust the set point to the desired temperature For room temperature more information read Programming the SSV DC on page 5 No power to the fan Switch on the power Faulty fan Replace the equipment Circuit breaker open Reset the breaker Se
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