REVO S
3PH from 60A to 210A
User’s manual
25
7.2 HB Alarm contact
The Revo unit with HB option (if available), is supplied with Heater
Break alarm contact normally opened (NO):
• In normal conditions (without alarm) and with auxiliary power
supply, the contact to the terminals has opened (relay coil
energized).
• In alarm condition or without auxiliary power supply the contact to
the terminals is closed (relay coil not energized).
If you wish to change the alarm contact open the cover of the Master
module (first on the left with terminal block) and set the jumper as
shown in the next page,
don’t set the other jumpers with factory
settings.
Warning:
Before operate, be sure that power and
control cables are isolated from voltage sources.
L1
T1
L2
T2
L3
T3
MASTER
A
B
C
JP1
A
B
C
JP1 A - B =
NC
A
B
C
JP1 B - C =
NO
Summary of Contents for S3PH
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