DPC71DM23 CARLO GAVAZZI, DPC71DM23 Datasheet - Page 3

• Manufacturer Part Number: DPC71DM23
• Description: PHASE MONITORING RELAY, SPDT, 240VAC
• Manufacturer: CARLO GAVAZZI
• Series: DPC71r

Specifications of DPC71DM23

• Contact Configuration: SPDT
• Power Consumption: 6VA
• Supply Voltage Max: 240VAC
• Switching Voltage Max: 250VAC
• Operating Time Range: 0.1s To 30s
• Relay Mounting: DIN Rail
• Width: 35.5mm
• Phase Type: 3 Phase

DPC71, PPC71
Mode of Operation (cont.)
Connected to the 3 phases
(and neutral) DPC71 and
PPC71 operate when all 3
phases are present at the
same time and the phase
sequence is correct. It can
be decided whether to mon-
itor upper and lower voltage
level of each phase or their
asymmetry and tolerance.
Voltage level monitoring:
if one or more phase-phase
or
exceed the upper set level
or drop below the lower set
level, the red LED starts
flashing
respective
releases after the set time
period.
Function/Range/Level/Time Setting
Specifications are subject to change without notice (06.12.07)
phase-neutral
2
output
Hz
and
voltage
relay
the
Asymmetry and tolerance
monitoring:
if one or more phase-phase
or
exceed the set levels the red
LED starts flashing 2 Hz and
the respective output relay
releases after the set time
period.
Note: For both functions, if
the
wrong or one phase is lost,
both output relays release
immediately. Only 200 ms
delay occurs. The failure is
indicated by the red LED
flashing 5 Hz during the
alarm condition.
phase-neutral
phase
sequence
voltage
is
Example 1
(Mains monitoring - over and
under phase-phase voltage)
The relay monitors over and
under voltage, phase loss
and
sequence.
Example 2
(Motor monitoring - starting
and operating load - asym-
metry
phase-neutral voltage)
DPC71 and PPC71 ensure
correct starting and operat-
ing conditions. They monitor
the
sequence (correct direction
of the motor rotation) and
asymmetry.
Adjust the input range set-
ting the DIP-switches 3 and
4. Select the desired func-
tion setting the DIP-switches
5 and 6 as shown below. To
access
open the plastic cover using
a
below.
screwdriver
Power-ON delay
ON:
OFF: 1 s ± 0.5 s
Monitoring
ON:
OFF: Phase-Phase voltages
Measuring range
SW3
SW4
M23 Ph-Ph
Voltage
M48 Ph-Ph
Voltage
M48 Ph-N
Voltage
Output
ON:
OFF: 1 x DPDT relay
Function
ON:
OFF: Over and undervoltage monitoring
voltage
and
correct
the
6 s ± 0.5 s
Phase-Neutral voltages
2 x SPDT relays
Asymmetry and tolerance monitoring
tolerance
level,
DIP-switches
as
208 VAC 220 VAC 230 VAC
380 VAC 400 VAC 415 VAC
220 VAC 230 VAC 240 VAC
ON
ON
shown
phase
phase
of
OFF
ON
Frequent failures are fuse
blowing and incorrect volt-
age level. In case of fuse
blowing the motor regener-
ates a voltage in the inter-
rupted
detects
reacts
imbalance among the phas-
es.
Upper knobs:
Setting of upper (
lower (
asymmetry (ASY) and toler-
ance (
Lower knobs:
Setting of delay on alarm
times (DELAY 1, DELAY 2)
on absolute scale:
0.1 to 30s.
OFF
due
) on relative scale.
ON
phase.
) level or setting of
the
to
DPC71 only
DPC71 only
failure
240 VAC
480 VAC
277 VAC
The
excessive
OFF
OFF
) and
relay
and
3