Installation Instructions, Viper 2000 Control System
PRD0167E01en
UWE Verken AB
3(6)
Footnotes
1.
If the flap motor drive has an additional position
feedback, the flaps can be positioned in a
selectable number of intermediate positions. If left
unconnected the flaps will go all the way to their
respective mechanical stop positions.
2.
This option is added for the case that analog
positioning of valve control motors is required. If a
single solenoid is to be used - connect the coil
between ground and either the inverted or non-
inverted output.
3.
These outputs are added in order to make it
possible to use only the control unit as a
compartment controller.
4.
The feedback potentiometers can be connected
directly between GND and +24V. Variations of
supply voltage are internally compensated.
Relay + AC : CO2 12 pole
AC Ice detection
<5V = Ice
CO2:1
Digital input
AC HP
In series with Clutch activation
CO2:2
Digital input
AC LP
In series with Clutch activation
CO2:3
Digital input
Defroster fan speed 2
Relay driver output
CO2:4
Solid state outp. 1.9A
Defroster fan speed 3
Relay driver output
CO2:5
Solid state outp. 1.9A
AC OverTemp
<5V = Compr. over tmp
CO2:6
Digital input
AC Condenser fan
Contactor driver
CO2:7
Solid state outp. 2.2A
Defroster fan speed 1
Relay driver output
CO2:8
Solid state outp.1.9A
Defroster fan speed PWM +
20 kHz Duty Cycle modulated differential
output for direct interface with PWM switch.
NonInv.
CO2:9
EIA RS485 transmitter out-
put. 15kV ESD protection,
slew rate limited.
AC Compressor Clutch
Direct drive
CO2:10
Solid state outp. 5.7A
Whisper heating fan (Rec. Blower)
Relay driver output
CO2:11
Solid state outp. 1.9A
Defroster fan speed PWM -
As CO2:9 Inverted
CO2:12
As CO2:9
Power Communication: CO3 9 pole
Recirculation blower for guide
Relay driver output
3)
CO3:1
Solid state outp. 1.9A
Booster pump
Relay driver output
3)
CO3:2
Solid state outp. 1.9A
Auxilliary Heater
Relay driver output
3)
CO3:3
Solid state outp. 1.9A
Batt+
/ Standby
CO3:4
Power 10A / 30mA
Gen
>7V = Engine running
CO3:5
Digital input
CAN L
Transceiver PCA82C251
CO3:6
Communication Line
GND
Chassies Ground
CO3:7
POWER GND
Master Switch (+30) / System wake up
CO3:8
Power input 1A
CAN H
Transceiver PCA82C251
CO3:9
Communication Line
Table 1: Display unit
Description
Comment
See
footnote
Pin
Type
