User Manual

WATLOW Series 998 User’s Manual 2.11
Installation and Wiring, Chapter 2
Figure 2.11a — AC Outputs
• Dual Electromechanical Relay without
Contact Suppression
Dual Form A, 2 Amps
Off-state impedance: 31MΩ
99 _ _ - _ _ _ E - _ _ _ _
• Dual Solid-state Relay without
Contact Suppression
0.5 Amps
Off-state impedance: 31MΩ
99 _ _ - _ _ _ K
- _ _ _ _
Figure 2.11b
— Dual Switched DC
99 _ _ - _ _ _ C
- _ _ _ _
Figure 2.11c
— 0-20mA and 4-20mA Process
Load impedance: 800Ω max.
99 _ _ - _ _ _ F
- _ _ _ _
Figure 2.11d
— 0-5V
ÎÎ
, 1-5V
ÎÎ
and 0-10V
ÎÎ
(dc) Process
Load impedance: 500Ω min.
99 _ _ - _ _ _ F
- _ _ _ _
Channel B Output Wiring
15
+
-
17
16
+
-
17
External
Load
COM
L1
L2
Fuse
NO
15
16
17
NO
External
Load
L2
1B
2B
15
16
17
Load
1b
Load
2b
-
+
-
+
+ VÎ
Internal Circuitry
15
16
17
23.5 to 30.6VÎ (dc)
1500
1500
Ω
Ω