ebm-papst CN1090, Operating And Maintenance Instructions Manual

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