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Operating and Maintenance Instructions
Fan Speed Select
Inputs
J1, J2
SL2, Switched
Live Input 2
Stop/Run
(J1 pin 2)
Volt Free Stop/Run
(J2 pin 11)
SL1, Switched
Live Input 1
(J1 pin 1)
Volt Free Select
Input 1 (J2 pin 9)
Volt Free Select
Input 2 (J2 pin 13)
In the above table "-" indicates "Input state ignored"
DIP Switch 1
Position
5
6
SL1 selects Sensor Demand Fan Speed
DIP Switch 1
Position
5
6
ON
Off
ON
ON
Off
-
Fan 1 Speed Control PWM Output = Fan 1 speed control
Fan 2 Speed Control PWM Output = Fan 2 speed control
Variable
Resistors
R1
R2
R3
R4
Rotary DIP
Switch
S2
S3
To invert Speed Control Output (Heating Profile), make S2 setting higher than S3 setting.
210-OMI13277_Iss1.doc
© ebm-papst UK Ltd, 2012
Proportional Band Control, Fan Speed
FAN STOP
Minimum
Speed,
S2 setting
Open
-
Linked to
230VAC
-
Open
Linked to 0V
-
-
Open
-
-
Open
-
-
Open
Proportional Band Control, Options
OFF
Normal Operation
Proportional Band Control, Commissioning
PWM Outputs
Fan 1 Speed Control PWM Output = R1 Setting
Fan 2 Speed Control PWM Output = R2 Setting
Fan 1 Speed Control PWM Output = R3 Setting
Fan 2 Speed Control PWM Output = R4 Setting
Normal Operation,
Proportional Band Control, Set-points
Sensor 1, input voltage at bottom of proportional band 1
Sensor 1, input voltage at top of proportional band 1
Sensor 2, input voltage at bottom of proportional band 2
Sensor 2, input voltage at top of proportional band 2
Proportional Band Control, normal
profile, Fan Speed Range
Fan Minimum Speed
Fan Maximum Speed
ORIGINAL INSTRUCTIONS
Chelmsford Business Park Chelmsford Essex CM2 5EZ
Telephone: +44(0)1245468555 Fax: +44(0)1245466336
e-mail
sales@uk.ebmpapst.com
Proportional
Band Control,
Sensor Demand
Linked to
230VAC
Linked to 0V
-
Linked to
230VAC,
and
DIP SW 6
OFF
Linked
-
to 0V
Open
Open
Linked
Commissioning, see table below
SL1 selects Maximum Fan Speed, S3 setting.
Invert Speed Control Output
(Heating Profile)
Fan Maximum Speed
Fan Minimum Speed
Maximum
Speed,
S3 setting
Linked to
230VAC
Linked to 0V
-
Linked to
230VAC,
and
DIP SW 6
ON
-
-
-
to 0V
ON
Indicator LED
NTC1 Red LED Pulse
NTC2 Red LED Pulse
NTC1 & NTC2 Red LED Off
, Fan Speed Range
Page 6 of 15
CN1090
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