7
5
Transformer T5 supplies 24VAC used to
power the main contactor. There are two
versions of this transformer for use on a
240 and 400V machines. The 240V
transformer has two input connectors
located about two inches from the
transformer, which allow it to be connected
to either 180-220V or 221-240V. Users that
have 220V-240V RMS input power should
use the connector labeled 221-240V, while
users with 190-220V input power should use
the connector labeled 180-220V. Failure to
use the correct input connector will result in
either overheating of the main contactor or
failure to reliably engage the main
contactor.
The 480V (option) T5 transformer has three
input connectors, labeled 340-380V,
381-440V and 441-480V. Users with
340-380V 50Hz power should use the
340-380V connector while users with
380V-440V 50Hz power should use the
381-440V connector.
Important:
Set the main circuit breaker to
ON. Check for evidence of problems, such
as the smell of overheating components or
smoke. If such problems are indicated,
immediately set the main circuit breaker to
OFF and call the factory before proceeding.
After the power is on, measure the voltage
across the bottom terminals on the main
circuit breaker. It should be the same as the
measurements where the input power
connects to the main breaker. If there are
any problems, check the wiring.
6
Apply power to the control by pressing the
Power-On switch on the front panel.
Check the DC Voltage and AC Line Voltage
gauges in Diagnostics. The DC Voltage gauge
must read between 310 - 360V. The AC Line
Voltage must be between 90 and 105
percent. If the voltage is outside these limits,
turn off the power and recheck steps 2 and
3. If the voltage is still outside these limits,
call the factory.
CM-1 Installation
Page 8 of 16 pages
