Yokogawa RAKD - Manual (Page 37)

IM 01R01B30-00E-E 5th edition January 01, 2013 -00
<7. TECHNICAL DATA>
7-7
All Rights Reserved. Copyright © 2003, Rota Yokogawa
LIMIT SWITCHES IN STANDARD VERSION
(option /K1 to /K3)
Type : Inductive proximity switch SC2-NO
acc. DIN EN 60947-5-6
Nominal voltage : 8V DC
Output signal : ≤ 1 mA or ≥ 3 mA
Hysteresis : < 0.5mm
LIMIT SWITCHES IN FAIL SAFE VERSION
(option /K6 to /K10)
Type : Inductive proximity switch
SJ2-SN; SJ2-S1N acc. DIN EN 60947-5-6
Nominal voltage : 8V DC
Output signal : ≤ 1 mA or ≥ 3 mA
Hysteresis : < 0.5mm
HYSTERESIS OF LIMIT SWITCHES
Min-contact / Max-contact :
- pointer movement : ≈ 0.8 mm
- float movement :
≈ 0.8 mm
Minimum distance between 2 contacts
: ≈ 8 mm
ELECTRICAL CONNECTION (option /K1 to /K10) :
Type : Quickon
Cable diameter : 4 – 6 mm
Maximum cross section of core
: Ø 0.34 to 0.75 mm 2
POWER SUPPLY FOR LIMIT SWITCHES (Option /W__)
Type : Transmitter relay
acc. DIN EN 50227 (NAMUR)
- KFA6-SR2-Ex1-W (230 V AC)
- KFA5-SR2-Ex1-W (115 V AC)
- KFD2-SR2-Ex1-W (24 V DC)
- KHA6-SH-Ex1 (115/230 V AC),
Fail Safe, only one channel
- KFD2-SH-Ex1 (24 V DC),
Fail Safe, only one channel
Power supply : - 230 V AC ± 10%, 45-65Hz
- 115 V AC ± 10%, 45-65Hz
- 24 V DC ± 25%
Relay output : 1 or 2 potential-free change over
contact(s)
Switching capacity
: max. 250V AC, max. 2 A
Note :
If Fail-Safe limit switch option /K6 or /K7 is ordered, for pow-
er supply option /W2E or /W4E must be selected.
If Fail-Safe limit switch option /K8, /K9 or /K10 is ordered,
for power supply option /W2F or /W4F must be selected.
SWITCHING LEVELS FOR LIMIT SWITCHES
Table 7-1 Min, Max and Min-Max-contact in standard version
Option /K1 Option /K2 Option /K3
Function Pointer
Signal Signal Signal
SC2-N0 SC2-N0 SC2-N0
MAX
above LV
below LV
----
---- 1 mA
3 mA 1 mA
3 mA
Function Pointer
Signal Signal Signal
SC2-N0 SC2-N0 SC2-N0
MIN
above LV
below LV
3 mA
1 mA ----
---- 3 mA
1 mA
Note: LV = Limit value
Table 7-2 Min, Max and Min-Max-contact in fail-safe version
Option /K6 Option /K7 Option /K8
Function Pointer
Signal Signal Signal
SJ2-SN SJ2-SN SJ2-SN
MAX
above LV
below LV
Fail Safe
----
----
---- 1 mA
3 mA
1 mA 1 mA
3 mA
1 mA
Function Pointer
Signal Signal Signal
SJ2-SN SJ2-SN SJ2-SN
MIN
above LV
below LV
Fail Safe
3 mA
1 mA
1 mA ----
----
---- 3 mA
1 mA
1 mA
Note: LV = Limit value
Table 7-3 Limit switch as Min-Min-contact in fail-safe version
Option /K9
Function Pointer
Signal
SJ2-S1N
MIN
above LV
below LV
Fail Safe
3 mA
1 mA
1 mA
Function Pointer
Signal
SJ2-SN
MIN
above LV
below LV
Fail Safe
3 mA
1 mA
1 mA
Note: LV = Limit value
Table 7-4 Limit switch as Max-Max-contact in fail-safe version
Option /K10
Function Pointer
Signal
SJ2-SN
MAX
above LV
below LV
Fail Safe
1 mA
3 mA
1 mA
Function Pointer
Signal
SJ2-S1N
MAX
above LV
below LV
Fail Safe
1 mA
3 mA
1 mA
Note: LV = Limit value