- solid state relay
- Circuit Board Solid State Relay
- Single phase solid state relay
- Industrial Solid State Relays
- Three-phase solid state relay
- Three-phase forward and reverse solid state relay
- Rail type three-phase solid state relay
- Industrial grade solid state relay module
- Tension controller
- Intelligent voltage regulation module
- Single and three-phase silicon controlled trigger
- heat sink
- Semiconductor module, rectifier bridge series
- time relay
- Digital display counter
- water level controller
- timer
- switching power supply
- S series switching power supply
- MS series switching power supply
- LRS series switching power supply
- D, T, Q multi-group series switching power supplies
- DR rail series switching power supply
- NDR rail series switching power supply
- MDR rail series switching power supply
- HDR rail series switching power supply
- FY rainproof series switching power supply
- FS rainproof series switching power supply
- Foot switch
- Fan water pump controller
Two-speed fan controller
Product overview
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This series of two-speed fan controllers is a high-performance product specially launched in response to market demand for low-power fans below 22KW. It is mainly used for smoke exhaust, fire control, etc.
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Wiring port description
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| Terminal number | illustrate | Terminal number | illustrate | |
| 1 | Working power supply AC220V live wire | 10/11 | Remote control point/on start, off stop | ? Control in automatic state |
| 2 | Working power supply AC220V neutral line | 12/13 | DC24V fire start/start with power, stop with power loss | |
| 3 | Low speed contactor coil control point | 14/15 | DC24V forced start/start with power, stop with power loss | any status |
| 4 | High speed contactor coil control point | 16 | Low speed start/inching signal | Control in automatic state |
| 5 | Manual feedback | 17 | High-speed start/jog signal | |
| 6 | Public terminal (passive) | 18 | Stop button/inching signal | |
| 7 | automatic feedback | 19 | Passive forced start/on start, off stop | any status |
| 8 | Public signal control terminal | 20 | Low-speed fault protection signal point/normally open and normally closed type programmable | ? ? |
| 9 | Fire damper contact/normally closed | twenty one | Low-speed fault protection signal point/normally open and normally closed type programmable | |
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Automatic signal wiring description
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Fire damper: Connect to 8#, 9# (connect to normally closed)
Remote control: 8# and 10# are remote low-speed start, 8# and 11# are remote high-speed start
Fire center control: connect 12#, 13# (DC24V has no positive or negative distinction), high-speed start
Forced start control: Connect 14#, 15# (DC24V has no positive or negative distinction), high-speed start
Passive forced start: connect 8#, 16# (start when connected, stop when disconnected), high-speed start.
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Function selection instructions
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Power-off memory saving function
This product has a power-off memory saving function. When the power is turned on again after a power outage, it will default to the state before the power outage. For example: when it is in manual state, the power is off, and when it is powered on, it is in manual state.
Fault type selection
In the automatic state, press and hold the "Low Speed ??Start" button for more than 5 seconds to switch the fault signal type of terminals 17# and 18#, which are divided into normally open type and normally closed type. The factory default is normally open type.
Protection type selection
In the automatic state, press and hold the "High Speed ??Start" button for more than 5 seconds to change the fault protection type of terminals 17# and 18# to the fault alarm type. It only alarms but does not disconnect the output, and switches the fault protection types in sequence.
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Wiring schematic diagram
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Dimensional drawing
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