Output contacts, Metering, Output contacts -7 – Basler Electric DGC-2020 User Manual
Page 31: Prestart, start, and run relays -7, Programmable relays (12) -7, Metering -7, Generator and bus voltage (rms) -7, Generator current (rms) -7, Generator and bus frequency -7, Apparent power -7
Output Contacts
PRESTART, START, and RUN Relays
Rating ............................................... 30 Adc at 28 Vdc - General purpose, 3 A pilot duty
∗
Programmable Relays (12)
Rating ............................................... 2 Adc at 28 Vdc - General purpose, 1.2 A pilot duty
∗
∗ The load must be in parallel with a diode rated at least 3 times the coil current and 3 times the coil
voltage.
Terminals†
Output 1 ............................................ 52, 51 (common)
Output 2 ............................................ 53, 51 (common)
Output 3 ............................................ 54, 51 (common)
Output 4 ............................................ 56, 55 (common)
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)
† 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 and Bus 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 and Bus 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).
9400200990 Rev X
DGC-2020 General Information
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