DCU 205 User’s Manual
- 6 -
3.
B
EFORE OPERATION
Before switching on the Control Unit's 24VDC voltage supply, the following
should be verified:
1.
The switch for selecting the speed
sensor type
must
be set to the
right position according to the table
below. The switch is located on the
back panel.
Speed sensor type
Frequency range
Switch position
Tachogenerator
0-80 Hz
1
Pick-up at the timing gear
0-2 kHz
2
Pick-up at the flywheel
0-8 kHz
3
Table 3-, Selection of speed sensor type
2.
Alarms not in use must be set in the OVERRIDE
position. This is accomplished using DIP switch
nos. 1-6, located on the back panel of the
Control Unit. For further instructions, please see
chapter 5.2.
3.
Shutdown functions that are not in use should not be connected.
4.
Verify all connections.
5.
Check that the voltage supply is correct, positive 24VDC on terminal 1
and 39, negative on terminal 2 and 40. See chapter 10 and 11.
6.
Make the necessary adjustments as noted under chapter 7
.
3.1.
Control Indicator
Verify with the
Control Indicator
on the back
panel, that a red and green lamp is flashing.
This indicates that the Alarm and Shutdown
parts of the unit are activated and operating.
A constant light indicates malfunction.
One flashing and one black light normally
indicates that power is applied to only one
unit.
Flashing lights indicates
the unit is operating:
Red: Alarm unit
Green: Shutdown unit
