
38
DSC2P Hardware Manual
ETEL Doc. - Hardware Manual # DSC2P / Ver H / 6/1/11
Example of a power stage relay and short-circuit relay used with an emergency stop push button:
Remark:
If the motor's short-circuit relay is not powered (motor's phases shorted) and if the user performs
a 'PWR ON' on the controller, the 'hardware overcurr' error will occur (which must be avoid). If this
relay is not powered while the controller is in 'PWR ON', the same error will occur. To avoid this
problem, the DIN1+ can be used as described in the above-mentioned diagram. Refer to the
corresponding
'Operation & Software Manual'
for more information about the use of DIN1+ (K33
parameter).
3.5.4
Connector JC14: Housed format, brake resistor
This connector is only present on the DSC2Pxx
4
-xxx format.
Warning:
High power may be present on this connector, depending on the application.
Caution:
Use only resistor with thermal shutdown protection. The resistor minimal value is 40
Ω
. The use of
an undersized power and energy withstand capability resistor could generate an explosion.
If you determine that a regeneration resistor is necessary, select it to fit your application (refer to the
'Braking
resistor' technical note
to calculate the value of this resistor). This resistor
must
include a thermal switch.
Example of resistor used by ETEL: Frizlen GmbH (Germany), cemented, double pipe resistor, type
FZZCQU-400x65, 39
Ω
, 1200 W at 300°C. Metallic case protection (shielding), shielded connector.
Remark:
The tightening torque for the screws of the brake resistor connector is 0.6 Nm max.
3.6
Optional boards connector
3.6.1
Connector JC8: Depends on the type of board
Phoenix Contact PC 4/2-G-7.62 (plastic connector)
B
RAKE
RESISTOR
Signal
Function
R -
External brake resistor
R +
External brake resistor
O
PTIONAL
BOARD
Refer to the specific documentation if you have an optional board.
JC12
JC9
PWR
OFF
1
2
3
4
5
11
6
3
+V
EXT
DIN1+
GND
EXT
M
OTOR
'
S
SHORT
CIRCUIT
RELAY
GND
AUX
V
AUX
P
OWER
STAGE
RELAY
+
P
OWER
STAGE
RELAY
-
E
XTERNAL
SUPPLY
+12 VDC
TO
+28 VDC
+24 V
DC
BUTTON
DSC2P
P
USH
R-
R+
BRAKE RES.
JC14
JC8
OP
T
IONAL BOA
R
D
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