11
Monitoring of the drive behaviour
220
Festo – EMCA-EC-C-HP-EN – 2017-11e – English
11.2
Protective functions
11.2.1
Overview: protective functions
The EMCA has a comprehensive array of sensors that monitor the control section, power section, motor
and external communication to ensure that they function perfectly. Some errors cause the control sec
tion to shut down the power section (output stage). The power section cannot be switched back on
until the error has been eliminated and then acknowledged. The following protective functions promote
operational reliability:
Protective functions
No. of the
message
Brief description
Monitoring of the
limit switch
07
h
, 08
h
Monitors exceeding of the limit switches
è
Monitoring of the
software end
positions
11h, 12h,
29h, 2Ah
Monitors exceeding of the software end positions
è
I²t monitoring
(Motor current)
0E
h
Monitors power dissipation of the drive;
if the maximum value is exceeded, a message is issued
è
Voltage monitoring
Detects undervoltages and overvoltages
–
Logic voltage
17
h
, 18
h
–
Intermediate cir
cuit voltage
1Ah, 1Bh
Temperature monit
oring
15
h
, 16
h
The output stage temperature is measured with a temperature
sensor. The output stage temperature and CPU temperature are
monitored cyclically. If the temperature rises above a limit value,
an error is triggered.
Braking resistor
measured value
30
h
The EMCA has an autonomous brake chopper with connection
for an external braking resistor (connection [X5]).
An internal braking resistor is not present. The EMCA detects in
the switch-on phase whether an external braking resistor is
connected. But a check of correct dimensioning does not take
place.
If no braking resistor is connected in the switch-on phase, the
EMCA generates a corresponding diagnostic message (
è
FCT
error management).
For applications that do not require a braking resistor, this dia
gnostic message can be classified as information (
è
The diagnostic message then has no external effect.
Tab. 11.7 Protective functions
Содержание EMCA-EC-67 CO Series
Страница 33: ...2 CANopen Festo EMCA EC C HP EN 2017 11e English 33 ...
Страница 73: ...3 EtherCAT with FHPP Festo EMCA EC C HP EN 2017 11e English 73 ...
Страница 87: ...4 EtherNet IP with FHPP Festo EMCA EC C HP EN 2017 11e English 87 ...
Страница 113: ...6 PROFINET IO with FHPP Festo EMCA EC C HP EN 2017 11e English 113 ...
Страница 116: ...7 FHPP 116 Festo EMCA EC C HP EN 2017 11e English ...
Страница 140: ...8 FHPP standard data I O data 140 Festo EMCA EC C HP EN 2017 11e English ...
Страница 148: ...9 Measuring reference system 148 Festo EMCA EC C HP EN 2017 11e English ...
Страница 210: ...10 Control via FHPP 210 Festo EMCA EC C HP EN 2017 11e English ...
Страница 223: ...11 Monitoring of the drive behaviour Festo EMCA EC C HP EN 2017 11e English 223 ...
Страница 367: ...D CANopen communication Festo EMCA EC C HP EN 2017 11e English 367 ...
Страница 402: ...F Diagnostics and fault clearance 402 Festo EMCA EC C HP EN 2017 11e English ...
Страница 413: ...EMCA EC 67 CO DIO EC EP PN Festo EMCA EC C HP EN 2017 11e English 413 ...
Страница 414: ...EMCA EC 67 CO DIO EC EP PN 414 Festo EMCA EC C HP EN 2017 11e English ...
Страница 415: ......