Lenze 4800 Manual page 58

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Installation
4908LP
4911LP
1
4-20
48XX/49XXSHB0399
Relay output
Terminal
K11, K14
4900Str063
Additional digital inputs and outputs with 4X08...4X13
The controllers 4X08...4X13 are equipped with additional control terminals to
monitor the fuses. The following current flow charts show the factory setting of the
internal wiring and give suggestions on how to include an external fuse monitoring.
86
1
87 87
2
88
89
Ctrl. enable
FIG 4-13 4808...4809 and 4908...4909
86
87 87
88
89
Ctrl. enable
FIG 4-14 4811...4813 and 4911...4913
For monitoring, the terminals 86 and 89 should be connected in series with the
controller enable contact Ctrl. enable.
( For internal voltage supply (15 V), bridge the following terminals:
- X2/20 to 86
- X2/28 to 89
( For external voltage supply (24 V):
- Apply supply voltage to terminal 86.
- Bridge terminals 28 and 89.
Danger! (especially for hoist applications)
Please observe when connecting the fuse monitoring:
No torque is generated when the controller is inhibited.
Use
(factory setting)
Floating relay output, contact load capacitiy: 50V / 0.5A (TRIP)
4902MP
20
+ Vcc15 + Vcc15
28
4900Str013
4902MP
20
+ Vcc15
28
4900Str_014
¥
External fuse monitoring
¦
Without external fuse monitoring, terminal
20 can be directly connected with the
switch Ctrl. enable.
¥
Internal fuse monitoring