Eaton MTL5500 Series, Инструкция по эксплуатации

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INM 5500 Rev 11
75
10 .4 .2 Trip calibration
Switches and multiturn potentiometers for setting the trip points are located on top of the unit
(see figure 10.7). For each of channels A and B:
i Set trip switch to H (high) or L (low) as required (see table 10.4
for relay operation).
ii Set input current to the required value for trip-point.
iii Adjust SET A/SET B until LED A/B is on: then slowly adjust until
LED goes out.
iv Relays are energised in normal operation and de-energised when
tripped. A lit LED shows the safe condition (not tripped).
Table 10 .4
Trip
switch
A or B
Operation PWR
LED
A or
B
LED
Relay contacts
11 - 12
8 - 9
10 - 11
7 - 8
H (high) Input > trip setting • open closed
H (high) Input < trip setting closed open
L (low) Input > trip setting closed open
L (low) Input < trip setting • open closed
- - • • open closed
Terminal Function
1 Current input
2 Transmitter ve
3 Common
7 Trip B (NC)
8 Trip B (COM)
9 Trip B (NO)
10 Trip A (NC)
11 Trip A (COM
12 Trip A (NO)
13 Supply –ve
14 ve
Figure 10 .7:
Top label
for MTL5314