69 © STULZ SpA . – all rights reserved EN/39B/06.2018
SAL
to display both RUN/ON and FAULT indication. If the controller senses a fault, it shuts down the
motor and the LED displays the appropriate fault condition. The controller monitors the following
conditions:
-Overload
-Over-temperature
-Phase reversal
-Phase loss / Open load
-Phase imbalance
-Shorted SCR
Any fault condition will cause the auxiliary contacts to change state and the hold-in circuit to
release. All faults can be cleared by either pressing the reset button or by removing control power.
Overload and over-temperature are time-based conditions that may require waiting for some
additional cooling time, before reset is possible.
Control terminal description
The device contains eight control terminals on the front of the controller. These control terminals are
described below.
Terminal number Description Terminal number Description
A1 Control power input 97 N.O. relay - aux. contact for fault indication
A2 Control power common 98 N.O. relay - aux. contact for fault indication
IN1 Start input 13 N.O. auxiliary relay #1 (normal/up-to-speed)
IN2 Stop input 14 N.O. auxiliary relay #1 (normal/up-to-speed)
Auxiliary contacts
Two hard contacts are provided as standard. These contacts are finger safe. The first contact is
for fault indication. The auxiliary relay #1 is programmable via dipswitch #14, for normal/up-to-
speed indication. A side-mounted additional auxiliary relay #2 can be added as an accessory and
programmed via dipswitch #15 for normal/up-to-speed indication.
DIP switch configuration
Position number Description
1 Start time
2 Start time
3 Start mode (current limit or soft start)
4 Current limit start setting (when selected) or Soft
start initial torque setting (when selected)
5 Current limit start setting (when selected) or
Soft start initial torque setting (when selected)
6 Soft stop
7 Soft stop
8 Not used
9 Kick start
10 Kick start
11 Overload class selection
12 Overload class selection
13 Overload reset
14 Auxiliary relay #1 (normal or up-to-speed)
15 Optional auxiliary relay #2 (normal or up-to-speed)
16 Phase rotation check
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