3
Rockwell Automation Publication 193-TD009A-EN-P
193-EF Overload Relays Specifications
Supply Voltage Failure
In the event of a supply voltage failure, the output relay resets and the stand-by indicator goes out. The actual status is stored for 30 minutes.
When the supply voltage is restored, the output relay reverts to its original state.
Reset — Manual
The reset button resets all protection functions. Resetting from any location is possible with the 193-RB1 remote reset module.
Reset — Automatic
Automatic resetting of thermal overload and thermistor overtemperature functions is an optional feature. All other protection functions must
be reset manually.
Test Button for Thermal Overload Protection
Pressing the test button will verify thermal tripping operation time at 6x/
e
without the motor being connected. The test button must be held
for longer than the set trip time t
6x/e
.
Device Installation and Commissioning
The operating instructions enclosed with the device provide all of the information necessary to set and commission it.
Surface Mounting
193-EF_A Snap-on fixing to standard DIN Rail or screw fixing
193-EF_B Screw fixing
193-EF_C Screw fixing
Mounting position: optional
Setting the Rated Current (0.5…20 A) (193-EF1A and 193-EF2A Requires 193-HD)
The motor supply cables are looped through the current transformer twice, thereby doubling the rated motor current. The setting on the
Bulletin 193-EF overload relay is the product of:
I
e
[A] x…number of loops
Recommended for I
e
[A]
Motor Supply Cables
Cable Cross Section (Flexible Strand)
IEC [mm
2
] CSA, UL (AWG No.)
20…180 fed straight through 4…95 10…10 000
10…20 looped twice 2.5…25 14…10
5…10 looped 4 times 1…6 14
2.5…5 looped 8 times 0.75…2.5 14
Motor supply wire
looped twice
Motor supply wire
looped 4 times
0.5…2.5 looped 40 times 0.5…0.75
‡
‡
CSA, UL: for I
e
= 0.5…2.5 A, only factory-assembled wound devices should be installed
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Komentáře k této Příručce