CERN spec. conform fan tray unit equipped with alphanumeric monitoring and three long life DC axial fans, either with frontal or bottom air entry, (400m³/h or >540m³/h airflow). The fan tray purports static pressure up to 8 mm H2O column with MFOT (Maintenance Free Operation Time) > 65 000h / 40°C. Fan speed is variable from 1200 to 3600 rpm
The monitoring can be toggled to display: voltages, currents, fan speed, temperature of incoming air, total power dissipation by inserted modules and network address, (if installed). Displayed currents are scaleable to obtain true values. In case of any malfunction the type of error will be displayed.
Additional LED information displays:
Status (Green): all values inside tolerance
Fan fail (Yellow): one or more fan(s) fail
Over Heat (Yellow): power supply overheated
The fan tray monitoring can be set to Programming Mode. This mode allows programming of all key functions and for 336-power supply values, ie. current limits, status thresholds, etc.. The Status Signal is superimposed by an additional pulse modulated information signal, (from PS/CS 336 only), to extend the CERN spec. monitoring and control.
Different Remote Control Interfaces are installable.
2. HS CEANET
3. IEC Bus
CAN-bus remote control and monitoring software can control up to 126 crates within a network. The user can control and program remotely every crate parameter, including on/off via the interface such as:
- Crate Identification
- All voltages, currents, temperature and status signals
- Over- under voltage trip off points and current limit adjustment (with 336 only)
- Average fan speed and display of every single fan
- Configuration and adjustment, (for service and maintenance)
CERN Spec. Monitor Connector
Important signals of the »M« power supplies have been wired to the 36 pin ribbon connector.
This connector monitors:
- Power fail
- Overload
- Overheat cut off
- Status, (pot. free contact)
- All output voltages-voltage outputs are internally protected by resistors against short circuit.
Disable signal prevents cut-off function
Inhibit signal keeps DC off and stops acoustic alarms
CE conform Crate versions / CE conform mains connection
CERN spec. wired bins allow to switch crates on and off via the mains switch at the fan tray. Current rules as CE60950 and UL1950 claim for primary to secondary isolations, which are not considered in the appropriate CERN specifications. Therefore WIENER formed a compromise to fulfill CE and UL safety restriction as well as CERN specifications by separating the mains wiring.
|
Weight: |
5kg |
|
MFOT: |
>65 000h / 40°C |
|
Number of fans |
3 |
|
Blower type: |
DC-Standard 1134 574 |
|
Dimension: |
118x118mm |
|
Static pressure at 3000 RPM: |
8 mm H2O column |
|
Power Consumption: |
6-8W typical |
|
Most efficient operating Range: |
100-160m3/h, 2- 3,8mmH2O |
|
Speed of Rotation: |
>3000 RPM |
|
Start up Current: |
Limited by soft start circuit |
|
Operating Voltage: |
Fan tray 30VDC, internal Blowers 0-24VDC, |
|
Operating temperature: |
0... 70°C |
