Operating and Maintenance Instructions
210-OMI10878
ORIGINAL INSTRUCTIONS
Page 2 of 6
ebm-papst UK Ltd
Chelmsford Business Park Chelmsford Essex CM2 5EZ
Telephone: +44(0)1245468555 Fax: +44(0)1245466336
e-mail
Table of Contents
Safety Notice ........................................................................................................................................................... 1
Introduction .............................................................................................................................................................. 2
Specification ............................................................................................................................................................ 2
Installation and Connection Details ......................................................................................................................... 3
Operation ................................................................................................................................................................. 3
DIP Switch Settings ................................................................................................................................................. 3
Configuration ........................................................................................................................................................... 4
Troubleshooting ....................................................................................................................................................... 4
DC Temperature Controller - Fan Compatibility List ................................................................................................ 5
Maintenance and Servicing ..................................................................................................................................... 5
Declaration of Conformity ........................................................................................................................................ 6
Introduction
Traditional fan speed controllers use voltage-chopping which can lead to reduced life expectancy, damage to
motor electronics and reduced performance. The DC Temperature Controller regulates the electrical power
supplied to the fan to maintain optimum performance and reliability.
• For temperature sensitive speed control of 12V, 24V ebm-papst DC compact fans.
• Fan speed increases with temperature between 20°C and 40°C or 35°C and 55°C according to the selected
profile.
• Alarm output through Open Drain connection or optional relay.
• Supplied complete with 2 metre long NTC thermistor.
*Note: Due to variations in motor electronics, a small number of mainly high speed fans may not work correctly
with this controller. A list of fans which have been tested for compatibility is attached to this document.
Specification
12V
24V
Supply Voltage
V DC
11.4 – 12.6
22.8 – 25.2
Supply Current
mA
36
37p
Ambient Temperature
°C
-20 to 75
-20 to 75
Output Power
W
20
20
Max humidity (non-condensing)
%RH
95
95
Open drain alarm Max current
mA
500
50
Max AC voltage
V AC
50
50
Max DC voltage
D DC
50
50
Max current
A
1
1
