Edwards SCU-350 Series

SCU-350 Series Control Unit for Turbomolecular Pump
MT-21E-201-E
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3
INSTALLATION
3.8.2 Power cable
WARNING
Ensure that the SCU-350 and the electrical supply cable are suitably protected against
earth (ground) faults and that the earth (ground) of the SCU-350 and "AC POWER
CON1" are correctly connected.
CAUTION
The power cable is designed specifically for the STP pump. DO NOT use the power cable with other
products.
Connect the power cable securely to prevent any poor or cross connections. DO NOT apply voltages
exceeding 1 kV to the input line.
Ensure that the supply voltage is as indicated on the SCU-350 information label. Connect the power
cable to the "AC POWER CON1" connector on the SCU-350.
Connect the power cable for the SCU-350 side to the "AC POWER CON1" on the SCU-350 rear panel
as shown in Table 6.
Connect the suitable connector to the power supply as shown in Table 6.
Fasten the connector of the power cable using the supplied cable fitting tool. (refer to Figure 19)
Connect the power cable to the main power of the vacuum equipment via a circuit breaker (rated
current 5 to 10 A).
When using the power cable without plug, connect the primary power to the UL-recognized terminal
block of the vacuum equipment. Secure the terminals with M4-bolts as the other side of the terminals,
and cover the terminal block with an appropriate cover. (refer to Figure 18)
Note: The STP connection cable and primary power cable are not included. Contact the distributor to
purchase.
25
37
55
φ8.1
L
N
PE( )
18
SCU-350 side Power side (Primary)
1 3 pin (socket)
2
1.5 mm
2
× 3 cores, φ8.1 mm
Cable color : Black 1, Black 2,
Yellow/Green
3 Crimp-type terminal (M4)
Figure 16 - Power cable (without plug)
1
2
3