Watlow Series 988LF - Manual (Page 19)

WATLOW Series 988LF User’s Manual 2.9 Installation and Wiring, Chapter 2
Figure 2.9a —
AC Outputs
Solid-state Relay with Contact Suppression
98 _ L - _ _ B _ - A A _ _
0.5 amps, minimum off-state impedance: 20K
Ω
Electromechanical Relay with Contact Suppression
(NO and COM contacts only)
98 _ L - _ _ D _ - A A _ _
Form C, 5 amps, minimum off-state impedance: 20K
Ω
Electromechanical Relay without Contact Suppression
98 _ L - _ _ E _ - A A _ _
Form C, 5 amps off-state impedance: 31M
Ω
Solid-state Relay without Contact Suppression
98 _ L - _ _ K _ - A A _ _
0.5 amps, off-state impedance: 31M
Ω
Output 1 Wiring
Figure 2.9b —
Switched DC, Open Collector
98 _ L - _ _ C _ - A A _ _
Minimum load resistance: 500
Ω
External
Load
COM L1
L2
Fuse
NO 12
13
NC 14
(#14 for D & E outputs only)
12
External
Load
+
13
14
-
COM
Figure 2.9d —
0-5V О О , 1-5V О О and 0-10V О О (dc) Process
98 _ L - _ _ F _ - A A _ _
Minimum load impedance: 1K
Ω
Figure 2.9c —
0-20mA and 4-20mA Process
98 _ L - _ _ F _ - A A _ _
Maximum load impedance: 800
Ω
14
-
+
12
14
-
+
13
+ VDC
Internal Circuitry
12
13
14
790 Ω
19 to 32V Î (VDC)
NOTE:
Successful installa-
tion requires five
steps:
• Model number and
software choice
(Appendix);
• DIP switch set-
tings (Chapter 1);
• Sensor match
(Chapter 2 and
Appendix);
• Sensor installation
(Chapter 2); and
• Wiring (Chapter 2).