Lenze ECSCExxx Power supply module - Manual (Page 106)

Monitoring functions
Configuring monitoring functions
Brake resistor monitoring (OC6, OH3)
9
l
106 EDBCSXE040 EN 7.0
9.3.6 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)
^ 106
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.