DER2 digital regulator instruction manual - rev. 02 - pag. 9
3. Terminals
Figures 1 and 2
show the connection terminals; the connections must be made using cables having a
minimum diameter:
1,5 mm²
for power cables on terminals from 1 to 22
0,5 mm²
for signal cables on terminals from 23 to 32
4. DER2 connections
The DER2 regulator has 3 differential inputs, with 2 selectable scales for each of them (see fig. 1):
scale "H" for voltages between 75V and 150V
scale "F" for voltages between 150V and 300V
4.1 Connections based on main alternator voltage
Based on the machine connections, and the desired voltage
(1)
you can use the three phase or single
phase sensing used in one range or the other. Table 4 summarises the connections for the most common
voltages.
TABLE 4: ALTERNATOR VOLTAGE AND SENSING CONNECTION
Connection
Phase-to-Phase Voltage [V]
Sensing - Phase
Range
Drawing
Notes
Series star
380-400-415-440-460-480-
500 (from 260 to 500)
Single phase on half phase
H
SCC0303/00
Three phase on half phase
H
SCC0301/00
Single phase on full phase
F
N.A.
Three phase on full phase
F
N.A.
530-550-575-600-690-760-
800-920-960(from 520 to 1000)
Single phase on half phase
F
SCC0304/00
Three phase on half phase
F
SCC0302/00
1200 (from 1100 to 2000)
Single phase on half phase
F
SCC0305/00
2 channels in
series
Parallel star
190-200-208-220-230-240-
250 (from 130 to 250)
Single phase
H
SCC0303/00
Three phase
H
SCC0301/00
380-400-415-440-460-480-
500 (from 260 to 500)
Single phase
F
SCC0304/00
Three phase
F
SCC0302/00
Series delta
220-230-240-254-265-277-
290 (from 150 to 300)
Single phase on half phase
H
SCC0303/00
Three phase on half phase
H
SCC0301/00
305-320-330-440-460-530-
555 (from 300 to 600)
Single phase on half phase
F
SCC0304/00
Three phase on half phase
F
SCC0302/00
220-230-240-254-265-277-
290 (from 150 to 300)
Single phase on full phase
F
N.A.
Three phase on full phase
F
N.A.
Parallel delta
110-115-120-127-133-138-
145 (from 75 to 150)
Single phase
H
SCC0303/00
Three phase
H
SCC0301/00
152-160-165-220-230-265-
277 (from 150 to 300)
Single phase
F
SCC0304/00
Three phase
F
SCC0302/00
Zig-Zag
(2)
Single phase on full phase
F
N.A.
Three phase on full phase
F
N.A.
660-690-720-760-800-830
(from 520 to 1000)
Single phase on full phase
F
SCC0306/00
2 channels in
series
Single phase
parallel
220-230-240-254-265-277-
290 (from 150 to 300)
Single phase - Partial
H
SCC0303/00
Single phase - Complete
F
N.D.
305-320-330-440-460-530-
555 (from 300 to 600)
Single phase - Partial
F
SCC0304/00
Single phase - Complete
F
N.D.
2 channels in
series
330-346-360-380-400-415-
430 (from 260 to 500)
(1) Compatibly with the rated characteristics of the alternator
(2) Sensing only on full phase
