Output 1 Wiring - Watlow 945 Series User Manual

Output 1 - Solid State Relay With Contact Suppression
B
945A - _ _ _ - _ 000
Off state impedance: 31MΩ max.
Off state impedance: 20K max.
Output 1 - Switched DC Output (Open Collector)
C
945A - _ _ _ - _ 000
Switched DC, Open Collector,
Non-Isolated
Output 1 - Mechanical Relay, 6 Amp, Form C
D
945A - _ _ _ - _ 000
Mechanical Relay, Form C, 6 Amp
Off state impedance: 20KΩ min.
Output 1 - Process, 4 - 20mA
F
945A - _ _ _ - _ 000
Process, 4-20 mA, Non-Isolated
Load impedance: 600Ω max.
Install and Wire, Chapter 2
Suppression
17 N.O.
18 COM.
16
-
Logic
+
17
Switch
16 COM.
17 N.O.
18 N.C.
+
17
+
I
DC
-
18
-
External
Load
L2
L1
Fuse
-
External
Load
+
Fuse
L1
L2
External
Load
External
Load
WATLOW Series 945 User's Manual

Output 1 Wiring

Figure 11 -
Solid State Relay
With Contact
Suppression
Figure 12 -
Switched DC
(Open Collector)
NOTE:
Minimum load
resistance is 500 .
Available current is
22mA maximum.
Typical voltage drop
across a 1K load is
12 to 19 volts.
Figure 13 -
6 Amp Mechanical
Relay
NOTE:
This output is
supplied with an arc
suppression snubber
across the output
terminals. High
impedance loads may
remain energized
even though the
output device is
turned OFF.
Figure 14 -
Process, 4-20mA
7