1-6 DGC-2020 General Information 9400200990 Rev I
Output 5: 57, 55 (common)
Output 6: 58, 55 (common)
Output 7: 60, 59 (common)
Output 8: 61, 59 (common)
Output 9: 62, 59 (common)
Output 10: 64, 63 (common)
Output 11: 65, 63 (common)
Output 12: 66, 63 (common)
∗ Contact rating is reduced to 3 A for part numbers 9400200105 and 9400200106 when used in a
hazardous location.
† The number of programmable output contacts provided is determined by the output contacts
character of the DGC-2020 style number. Controllers with output contacts option A have 4 program-
mable outputs (Outputs 1, 2, 3, and 4). Controllers with output contacts option B have 12
programmable outputs.
The programmable relays share common terminals: terminal 51 is used for outputs 1, 2, and 3,
terminal 55 is used for outputs 4, 5, and 6, terminal 59 is used for outputs 7, 8, and 9, 63 is used for
outputs 10, 11, and 12.
Metering
Generator Voltage (rms)
Metering Range: 0 to 576 Vac (direct measurement)
577 to 9,999 Vac (through VT using VT ratio setting)
VT Ratio Range: 1:1 to 125:1 in primary increments of 1
Accuracy: ∗ ±1.0% of programmed rated voltage or ±2 Vac
Display Resolution: 1 Vac
∗ Voltage metering indicates 0 V when generator voltage is below 2% of the full-scale rating.
Generator Current (rms)
Generator current is measured at the secondary windings of user-supplied 1 A or 5 A CTs.
Metering Range: 0 to 5,000 Aac
CT Primary Range: 1 to 5,000 Aac in primary increments of 1 Aac
Accuracy: ∗ ±1.0% of programmed rated current or ±2 Aac
Display Resolution: 1 Aac
∗ Current metering indicates 0 A when generator current is below 2% of the full-scale rating.
Generator Frequency
Generator frequency is sensed through the generator voltage input.
Metering Range: 10 to 72 Hz (50/60 Hz)
10 to 480 (400 Hz)
Accuracy: ±0.25% or 0.05 Hz
Display Resolution: 0.1 Hz
Apparent Power
Indicates total kVA and individual line kVA (4-wire, line-to-neutral or 3-wire, line-to-line).
Measurement/Calculation Methods
Total: kVA = (V
L-L
× I
L
×√3) ÷ 1000
4-Wire, Line-to-Neutral: kVA calculated with respect to neutral
3-Wire, Line-to-Line: A-phase kVA = V
AB
× I
A
÷ 1000 ÷ √3
B-phase kVA = V
BC
× I
B
÷ 1000 ÷ √3
C-phase kVA = V
CA
× I
C
÷ 1000 ÷ √3
Accuracy: ±3% or the full-scale indication or ±2 kVA ∗†
∗ kVA metering indicates 0 kVA when the generator kVA is below 2% of the full-scale rating.
† Applies when temperature is between -40°C to +70°C.
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