1 3
OMRON Scientific Technologies Inc.
© OMRON STI 0613 PN99804-0060 Rev. B
40
Table 13-2 Response Time of MS/MSF4800 System
1 3 . 2 C
A BL E
L
EN G T HS
(C
US T O ME R
S UP PL I ED
CA BL E S
)
The table below lists the maximum specified lengths and wire gauges of the MS4800 input & output
signals.
Table 13-3 MS4800 Input & Output Signal Cable Lengths
Conformity/Approvals
Conforming to standards
ANSI R15.6-1999, ANSI B11.19-2003, OSHA 1910.217(c).
Other approvals:
All systems have been EC type examined to the requirements of IEC
61496-1, -2 for a Type 4 ESPE. TUV Registration No.
BB600166650001. UL61496-1 & -2. IEC 61508 (SIL3)
Specifications subject to change
Note 1:
The system operates directly from 24 VDC ±20%. Power to the system must come from a
24VDC SELV power supply which meets the voltage interruptions and dip requirements of IEC 61496-1
(per section 4.3.2.2 and 5.4.3.2) and IEC 60204-1 (per section 4.3.3), Omron STI part number 42992 or
equivalent. The power supply size is dependent on the total current required by two solid-state safety
outputs and the auxiliary output should not exceed 1.35 A. Total system current requirements is the sum
of transmitter (285mA), receiver (450mA), OSSD1 (625mA), OSSD2 (625mA).
Note 2:
24 VDC is nominal. Actual voltage is dependent upon supply, V = Vsupply - 1V.
Note 3:
When using a Omron STI-supplied 30 meter receiver cable the total load current is limited to
1.2A at 24V (nominal). See when using customer supplied cables.
One Segment System
Two Segment System
Minimum
Beam Count
Maximum
Beam Count
Response Time (ms)
Minimum
Beam Count
Maximum
Beam Count
Response Time (ms)
Normal
Normal
0
16
14
0
65
23
17
71
23
66
120
32
72
126
32
121
174
41
127
180
41
175
229
50
181
235
50
230
256
59
236
256
59
Three Segment System
Four Segment System
Minimum
Beam Count
Maximum
Beam Count
Response Time (ms)
Minimum
Beam Count
Maximum
Beam Count
Response Time (ms)
Normal
Normal
0
59
23
0
53
23
60
114
32
54
108
32
115
168
41
109
162
41
169
223
50
163
217
50
224
256
59
218
256
59
Note: Refer to Section 13 --
Specifications and Additional Information
to determine the number of beams in
your system.
MS4800
Signal Names
Wire Gauge
Specified Maximum Length
MS4800
Receiver
OSSD 1 & 2
Outputs
22 AWG (0.32mm
2
)
wire
300mA load: 45 meter (147 ft)
625mA: 22 meter (72 ft)
24 VDC Input
Power & Return
20 AWG (0.52mm
2
)
wire
1.8 Amp load: 12.5 meter (41 ft)
1 Amp load: 22 meter (72 ft)
MS4800
Transmitter
24 VDC Input
Power & Return
22 AWG (0.32mm
2
)
wire
0.3 Amp: 47 meter (150 ft)
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