2 • Service Manual — COATS Models 950/950 ProRacer/1025/1050/1055
Direct Drive
Voltage & Phase Checking
Procedure
1.
Unplug the Balancer from the power source.
2.
Perform all voltage checks shown in the appropri-
ate diagram and chart at the power receptacle. If one or
all voltage measurements is faulty be sure to check the
status of the circuit breakers that supply the Balancer.
3.
Check from one of the power terminals to the
ground terminal to verify a ground is present. The volt-
age measurement should be approximately one half of
the available voltage (i.e. 220V should read 110V). If the
reading is less that one half the available voltage, there
is not a ground present. Normal acceptable deviation is
plus and minus 10%, damage can occur when voltage
or amperage is beyond 10% design specs.
Note: If any faults are found in the above
procedure, it is the responsibility of the
owner. COATS authorized service personnel
are not responsible for wiring within the
building. Consult a licensed electrical con-
tractor for proper installation to local electri-
cal codes. Power outlets must be enclosed
in a floor raceway or overhead drop if pedes-
trian or equipment traffic can damage
power cord.
4.
Plug the balancer to a power source.
5.
Use an Ohmmeter to check the resistance
between the frame of the Balancer and the building
ground. The resistance should be less than 1 ohm. If
the resistance measurement is greater that one (1)
ohm, check the power plug and frame connection for
proper contact.
Operation with a defective ground circuit
will create a shock hazard for the operator
and could damage the balancer's electron-
ics. Operation with a defective ground cir-
cuit may void warranty.
CAUTION
RED
WHITE
GREEN
GROUND
X
Y
Z
BLACK
GREEN
BLACK
RED
GROUND
A
B
THREE PHASE VOLTAGE REQUIREMENTS / INFORMATION
208V/220V/230V
380V
460V
X - Y
195-250
370-420
420-480
X - Z
195-250
370-420
420-480
Y - Z
195-250
370-420
420-480
Plug
Installed
Hubbell 2421
Hubbell 2431
Required
Hubbell 2420 or
Hubbell 2430 or
Mating Outlet
Equivalent
Equivalent
SINGLE PHASE VOLTAGE
REQUIREMENTS/ INFORMATION
208V/220V/230V
A - B
195 - 250
Plug
Hubbell
Installed
5466-C
Required
Hubbell 5462 or
Mating Outlet
Equivalent
Содержание COATS 1025
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Страница 48: ...9111123 03 11 05 Copyright 1992 Hennessy Industries and COATS All Rights Reserved Printed in USA ...