Configuration
Configuring monitoring functions
Brake resistor monitoring (OC6, OH3)
8
116
EDBCSXE040 EN 6.0
8.4.7 Brake resistor monitoring (OC6, OH3)
Internal brake resistor (OC6)
Stop!
The power supply module can be destroyed if monitoring is deactivated while
the internal brake resistor is used.
ƒ The internal brake resistor is continuously monitored during operation (does not
apply to ECSCE power supply module).
ƒ The monitoring detects the duration of current flow in the brake resistor and
calculates the power loss (display under C0066).
ƒ If the power loss exceeds the limit value set permanently in the device ˘ 120 W for
ECSxE012/020 or 240 W for ECSxE040 ˘ TRIP "OC6" is output.
The TRIP "OC6" can be reset if the power loss falls below 114 W or 228 W again.
ƒ The current flow is derived from the operating time and the voltage drop across the
brake resistor. Thus, the fault message also occurs if the bridge between the
terminals X22/BR1 and X22/+UG is missing or an external brake resistor is
connected between X22/BR0 and X22/+UG.
Parameter
C0579
Designation
Response − monitoring of internal brake resistor (OC6)
Data type: INTEGER_32
Index: 23996
dec
= 5DBC
hex
Monitoring response of the internal brake resistor (fault message OC6)
116
Selection list (Lenze setting printed in bold) Information
0 TRIP
3 No response
External brake resistor (OH3)
Stop!
If an external brake resistor is used, the monitoring of the internal brake
resistor must be deactivated (C0579 = 3).
The external brake resistor can be monitored via a temperature contact. It can be
connected to X6/T1, X6/T2. If monitoring is not required, a jumper must be connected
between X6/T1 and X6/T2. If the contact is opened, TRIP "OH3" is triggered.
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