130
10 Appendix
(new version delivered from October 2003 onwards)
In , a r.p.m board can be integrated, allowing you to connect an inductive sensor for speed
feedback directly. It could be a NAMUR type or a three wired type.
Speed nominal range (164... 819 Digit)
Additionally, there are 2 DIP switch for changing between NAMUR and three wire connection.
– S2.1 and S2.2 at OFF three wire system
– S2.1 and S2.2 at ON NAMUR
If the set pulse range is exceeded the value remains at the upper end of the range (higher
pulse numbers are ignored). Below the measuring range the signal goes to approx. 0 - 7 digit.
WARNING!
Make sure that the selected measuring range is not exceeded, otherwise speed changes in
excess of this will no longer be detected.
S1.1 15-440 pulses/min 140 to 942 Points (0,25...7.3 Hz)
S1.2 45-1320 pulses/min 140 to 942 Points (0,75...22 Hz)
S1.3 175 - 4200 pulses/min 140 to 942 Points (2,9...70 Hz)
S1.4 355 - 8430 pulses/min 140 to 942 Points (5,9...140,5 Hz)
Fig. 10-11 R.p.m. board from October 2003 on-
wards
Technical Data
Linearity error: < 0,1 % v. E.
Temperature drift: < 75 ppm/K (typical 60 ppm/K)
NAMUR-input: U
0
= 8,2 V; Ik = 8,2 mA, +/-5 %
Make threshold: max. 2,1 mA (typical 1,8 mA), +/-5 %
Break threshold: max. 1,2 mA (typical 1,4 mA), +/-5%
Switch input:
Make threshold: 6,2 V
Break threshold: 4,5 V
Measuring method: Period duration measurement over 5 periods
Input pulse width: >200 s
Temperature range: 0…60 °C/32°F...140°F
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