SKF IPM 12, Operating Instructions Manual

Page: 75 / 108

Page 75
EN
Securing parameters during network failure
Nonvolatile memory EEPROM
One input for external acknowledgment of
the error message 1) (RESET).
One input for switching over to start up
operation
1)
Monitoring per signal input
Full-load operation:
2 x lower limit
(warning, underlubrication fault)
1 x upper limit
(overlubrication warning)
Start up operation:
2 x lower limit
(warning, underlubrication fault)
Signal outputs
Type of contact 2 changeover switches (isolated)
max. switching voltage
250 V AC
max. switched current 2 A
max. switching capacity 250 VA
Measuring principle:
Measuring range 10...2400 pulses/min.
Mean value from individual periods
The following applies to every measuring
point:
max. period duration
100 s.
corresponding to roughly 0.6 pulses/min
max. measuring time: 100 s +
1 period max.
Input freq.
[pulses/min.]
Messuring time
[ s ]
3600 1
1200 3
360 5
90 10
14 30
2.25 80
0 100
Plausibility check:
Every error must occur in at least two
measurements in a row for an error message
to be issued.
Measuring resolution (meas.exactness)
up to 500 pulse/min: ≤ 1.0 %
up to 750 pulse/min: ≤ 1.5 %
up to 1000 pulse/min: ≤ 1.0 %
Caution!
Suficient spark extinction has to be
provided for DC loads.
6. Description of components