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
μ
s
Temperature range:
0…60 °C/32°F...140°F
Summary of Contents for VMS 4
Page 2: ......
Page 119: ...118 10 Appendix...
Page 129: ...128 10 Appendix Fig 10 9 Ger t 4 Ger t 5 with output regulator...
Page 141: ...140 10 Appendix 10 14 Declaration of Conformity...
Page 142: ...141 10 Appendix...
Page 143: ...142 10 Appendix 10 15 Protocol Example...
Page 144: ...143 10 Appendix 10 16 O2 Setpoint Curves...
Page 145: ...144 10 Appendix...
