Edwards SCU-350 Series

SCU-350 Series Control Unit for Turbomolecular Pump
MT-21E-201-E
Page 55
4
OPERATION
Table 14 shows rated contacts for relays CR4, 5, 6, 7, 8, 9 and 10 in Figure 31.
Resistance Load
（COSφ=1）
Induction Load
（COSφ=0.4）
（L/R=7ms）
Rated Load
125 V AC 0.4 A 125 V AC 0.2 A
30 V DC 2 A 30 V DC 1 A
Rated Current 3A
Maximum Contact
Point Voltage
250 V AC, 220 V DC
Maximum Contact
Point Current
3 A
Maximum Open/Close
Capacity
AC: 50 VA
DC: 60 W
AC 25 VA
DC 30 W
Minimum
Applicable Load
10 mV DC, 10 μA
Table 14 - Rated contacts for relays CR4, 5, 6, 7, 8, 9 and 10
4.5.4 Remote cables for CON4 (for SCU-350H/350HA only)
Remote cables for CON4 are provided as optional accessories.
Remote cables are available in two types: single-side connector type and both-side connector type.
Contact Edwards for details.
Table 15 shows connections of remote cables of single-side connector type.
Connector
Pin No.
Cable color
Connector
Pin No.
Cable color
1
Brown
13
White/Orange
2
Red
14
White/Yellow
3
Orange
15
White/Green
4
Yellow
16
White/Blue
5
Blue
17
Green
6
Purple
18
White/Black/Brown
7
Gray
19
White/Black/Red
8
White
20
White/Black/Orange
9
White/Black
21
White/Black/Yellow
10
White/Brown
22
White/Black/Green
11
White/Red
23
White/Black/Blue
12, hood
Shielded
24
White/Purple,
White/Gray
Table 15 - Remote cable connections (Single-side connector type)