CDC482055UR-F EBM-Papst Industries Inc, CDC482055UR-F Datasheet - Page 2

• Manufacturer Part Number: CDC482055UR-F
• Description: DC FAN CONTROLLER 48V, RELAY ALARM
• Manufacturer: EBM-Papst Industries Inc

Specifications of CDC482055UR-F

• Thermocouple Type: 2m Long NTC Thermistor
• Operating Temperature Max: 75°C
• Operating Temperature Min: -20°C
• Output Voltage Max: 50V
• Svhc: No SVHC (15-Dec-2010)
• Contact Configuration: NC
• External: RoHS Compliant

Installation Guide - DC Temperature Controller
Issue 01
An alarm output is provided through either an Open Drain connection or a normally closed relay. The alarm is activated if the
upper temperature limit is reached or if the controller detects an open or short circuit sensor on the NTC temperature input.
Under sensor failure conditions the fan will run up to full speed. A fan fail alarm output can also be activated when using three
wire fan types by monitoring the Tacho or Alarm output from the fan.
Note: The Tacho or Alarm output from only one fan can be monitored. Connection of multiple fans in this way will cause
spurious alarm indications.
If the voltage input limit to the controller or the current output limit to the fan is exceeded, the controller and fan will switch
off to prevent risk of damage and an alarm indication is given.
A yellow LED flashes during normal operation. A blue LED indicates an alarm condition.
Connection
Notes
Open Drain Alarm Output: Connect the alarm output to the input of the monitoring device then connect a pull-up resistor
(typically 100KΩ) between this connection and the supply voltage of the monitoring device. During normal operation the alarm
output will be 0 volts. In an alarm condition the output will be the same as the supply voltage of the monitoring device.
Relay Alarm Output: This is a volt free contact that is held closed during normal operation and opens when an alarm
condition is detected.
Temperature sensor: The 0 volt wire of the sensor must only be connected to the terminal provided on the controller and
not to any other 0 volt source.
Fan Supply: The fan must be only by connected to the terminals provided on the controller or it will not be able to monitor
and regulate the fan speed correctly.
210-OMI10878 Iss01