4–20 mA Lines – Cutsforth Support

The 4–20 mA output connection points are located inside the Assurance Monitoring System enclosure. The terminal strips are labeled to indicate which signal pair is carried at each terminal connection point.

Shaft V RMS		Shaft V 0-Pk		Shaft V DC		Gnd I RMS		Gnd I 0-Pk		Gnd I DC		Rope Status
BK	WT	BK	WT	BK	WT	BK	WT	BK	WT	BK	WT	BK	WT
+	-	+	-	+	-	+	-	+	-	+	-	+	-

DCS Programming: Interpreting Output Values

The 4–20 mA outputs are intended to be used with a plant DCS. Refer to the following seven tables when programming.

Channel 0: Shaft Voltage RMS

Measurement Range: 0–50 V RMS
4–20 mA Scale: 1 mA = 3.125 V RMS

Shaft Voltage RMS (V)	4–20 mA Output
0	4
12.5	8
25	12
37.5	16
50	20

Channel 1: Shaft Voltage 0-Pk

Measurement Range: 0–200 V 0-Pk
4–20 mA Scale: 1 mA = 12.5 V 0-Pk

Shaft Voltage 0-Pk (V)	4–20 mA Output
0	4
50	8
100	12
150	16
200	20

Channel 2: Shaft Voltage DC

Measurement Range: -25–25 V DC
4–20 mA Scale: 1 mA = 3.125 V DC

Shaft Voltage DC (V)	4–20 mA Output
-25	4
-12.5	8
0	12
12.5	16
25	20

Channel 3: Ground Current RMS

Measurement Range: 0–30 A RMS
4–20 mA Scale: 1 mA = 1.875 A RMS

Ground Current RMS (A)	4–20 mA Output
0	4
7.5	8
15	12
22.5	16
30	20

Channel 4: Ground Current 0-Pk

Measurement Range: 0 –70 A 0-Pk
4–20 mA Scale: 1 mA = 4.375 A 0-Pk

Ground Current 0-Pk (A)	4–20 mA Output
0	4
17.5	8
35	12
52.5	16
70	20

Channel 5: Ground Current DC

Measurement Range: -30–30 A DC
4–20 mA Scale: 1 mA = 3.75 A DC

Ground Current DC (A)	4–20 mA Output
-30	4
-15	8
0	12
15	16
30	20

Channel 6: Rope Status

Measurement Range: Pass/Fail

Rope Status	4–20 mA Output
Pass	4
Fail	20

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