AUMA Aumatic AC 01.1 User Manual

7.16.6 Phase failure monitoring
When connected to a 3-phase AC power supply, the electronics is supplied
via two of the three phases. In case of losing one of the two phases, the
controls are inoperable and the actuator stops.
The AUMATIC monitors the third phase. If the third phase fails, the controls
remain fully operable. The controls stop the actuator in case of third phase
loss and the
LOSS OF PHASE fault signal is generated.
Information In case of a phase loss during motor operation, this does not necessarily
lead to an immediate standstill of the actuator. The reason is that the rotat-
ing motor generates the missing phase itself. This leads, however, to a
reduction of the motor output torque.
If the third phase fails and the torque is still sufficient for valve operation, the
missing phase is only detected when switching off (e.g. in an end position)
and the above mentioned fault signal is generated.
Setting/editing the phase monitoring
Faults in supply voltage (e.g. voltage drops) do not generate a fault signal
during the period adjustable for this parameter.
Æ
Via the menu to parameter:
MAIN MENU (M0)
SETTINGS (M1)
PHASE MONITORING (M1O)
Default value: 10.0 s
Setting range:
0.0 to 30.0 seconds
Information The phase loss monitoring is only valid for connections to 3-phase AC
power supplies. The phase loss monitoring is not available for the following
versions:
Numbering system of wiring diagram:
.
3
rd
position in ACP wiring diagram = I, Q (DC motor)
.
5
th
position in ACP wiring diagram = B (heater with external supply)
.
6
th
position in ACP wiring diagram = 7 (external supply of electronics with
24 V DC, without transformer, without voltage output)
Example: ACP 11I2B7P0CA-002
Number
ing system of terminal plan:
.
KMS 44TP in terminal plan = 44 (motor connection via terminal box),
example: KMS 44TP502/001
.
KMS 44TP in terminal plan = 42 (motor connection via plug/socket con-
nector), example: KMS 42TP480/001
90
Actuator controls
AUMATIC AC 01.1/ACExC 01.1 Profibus DP Manual

AUMA Aumatic AC 01.1 Specifications

General

Brand	AUMA
Model	Aumatic AC 01.1
Category	Control Unit
Language	English