Super Systems 20PQ - Manual (Page 16)

12
The same problem may occur when a switch is used in series
with the internal contacts as shown in Fig. 12.
Fig. 12 EXTERNAL SWITCH IN SERIES WITH THE INTER-
NAL CONTACT
In this case it is recommended to install an additional RC
network across the external contact as shown in Fig. 12
The value of capacitor (C) and resistor (R) are shown in the
following table.
Anyway the cable involved in relay output wiring must be as far
away as possible from input or communication cables.
E.2) VOLTAGE OUTPUTS FOR SSR DRIVE
Fig. 13 SSR DRIVE OUTPUT WIRING
Logic level 0: Vout < 0.5 V DC.
Logic level 1:
14 V + 20 % @ 20 mA
24 V + 20 % @ 1 mA.
Maximum current = 20 mA.
LOAD
(mA)
<40 mA
<150 mA
<0.5
A
C
( mF)
0.047
0.1
0.33
R
( W)
100
22
47
P.
(W)
1/2
2
2
OPERATING
VOLTAGE
260 V AC
260 V AC
260 V AC
R
C
LOAD
LINE
+
_ _
+
24
25
OUT 1
SOLID STATE
RELAY
+
_ _
+
27
28
OUT 2
SOLID STATE
RELAY
XKP-1-C2.p65 10/30/01, 9:36 AM 12