Evaluation unit CES-AZ-UES-04B (for 4 read heads)
- 4 read heads can be connected
- 2 safety outputs (relay contacts with 2 internally connected NO contacts per output)
- Start button and feedback loop can be connected
- Multicode
- Plug-in connection terminals
- Category 4 / PL e according to EN ISO 13849-1

Ismertetés
Multicode evaluation
Every suitable actuator is detected by the evaluation unit.
Guard lock monitoring
Evaluation units in the series CES-AZ make it possible to use read heads with integrated guard locking for the protection of personnel during overtraveling machine movements. You will find suitable read heads in the accessories.
Category according to EN ISO 13849-1
Due to two redundant safety paths (relay contacts) with 2 internal, monitored normally open contacts per safety path, suitable for:
- Category 4 / PL e according to EN ISO 13849-1
Each safety path is independently safe.
LED indicator
STATE | Status LED |
DIA | Diagnostics LED |
OUT | Safety output status |
Additional connections
TST | Input for self-test |
O1 ... O4 | Monitoring outputs (semiconductor) |
DIA | Diagnostic output |
Y1, Y2 | Feedback loop |
S | Start button connection (monitoring of the falling edge) |
Important: The plug-in connection terminals are not included and must be ordered separately.


Dimension drawings

1 | Suitable for 35 mm mounting rail according to EN 60715 |
Connection examples

Műszaki adatok
Approvals





Work area
Repeat accuracy R | |
according to EN 60947-5-2 | max. 10 % |
Controls and indicators
LED indicator | |
Safety outputs status | |
Status LED | |
Diagnostics LED |
Electrical connection ratings
Connection cross-section | |
(plug-in screw/spring terminals) | 0.25 ... 2.5 mm² |
Current consumption | |
(with relay energized) | 150 mA (without taking into account the load currents at the monitoring outputs) |
Fusing | |
external (operating voltage UB) | 0.25 ... 8 A |
Operating voltage DC | |
UB | 21 ... 24 ... 27 V DC regulated, residual ripple < 5% |
EMC protection requirements | according to EN 60947-5-3 |
Current via feedback loop | 5 ... 8 ... 10 mA |
Degree of contamination (external, according to EN 60947-1) | 2 |
permissible resistance in feedback loop | max. 600 Ω |
Inputs: start button S, test input TST | |
Input voltage | |
HIGH | 15 ... UB V DC |
LOW | 0 ... 2 V DC |
Input current | |
HIGH | 5 ... 8 ... 10 mA |
Monitoring outputs: diagnostics DIA, door monitoring outputs O1...O4 | |
Output type | Semiconductor output, p-switching, short circuit-proof |
Output current | max. 20 mA |
Output voltage | 0.8 x UB ... UB V DC |
Safety contacts 13/14, 23/24 | |
Output type | Relay contacts, floating |
Fusing | |
external (safety circuit) according to EN 60269-1 | 6 AgG or 6 A circuit breaker (characteristic B or C) |
rated conditional short-circuit current | 100 A |
Rated insulation voltage Ui | 250 V |
Rated impulse withstand voltage Uimp | 4 kV |
Discrepancy time | |
(between the operating points of both relays) | max. 25 ms |
Switching current | |
at switching voltage AC/DC 5 ... 30 V | 10 ... 6000 mA |
at switching voltage AC/DC 21 ... 60 V | 1 ... 300 mA |
at switching voltage AC 5 ... 230 V | 10 ... 2000 mA |
Utilization category | |
AC-12 | 60 V 0.3 A |
DC-12 | 30 V 6 A |
AC-15 | 230 V 2 A |
AC-12 | 30 V 6 A |
DC-13 | 24 V 3 A |
DC-12 | 60 V 0.3 A |
Switching load | |
according to c UL us | Class 2 max. 30 V AC / Class 2 max. 60 V DC; 120 V AC 3 A / 240 V AC 1.5 A |
Mechanical values and environment
Number of read heads | max. 4 read heads can be connected |
Connection | plug-in connection terminals, coded (Terminals not included) |
Degree of protection | IP20 |
Ready delay | 10 ... 12 s (After the operating voltage is switched on, the relay outputs are switched off and the door monitoring outputs are set to LOW level during the ready delay. For visual indication of the delay, the green STATE LED flashes at a frequency of approx. 15 Hz.) |
Material | |
Housing | Plastic PA6.6 |
Switching frequency | max. 0.25 Hz (In case of monitoring with feedback loop, the actuators must remain outside the actuating range, e.g. with a door open, until the feedback loop is closed.) |
Reaction time | |
after change in the actuation status, 3 active actuators | max. 370 ms (Corresponds to the risk time according to EN 60947-5-3. This is the maximum OFF time for the safety outputs following removal of the actuator. In case of EMC interference in excess of the requirements in accordance with EN 60947-5-3, the OFF time can increase to max. 750 ms. After a brief actuation of < 0.8 s, the switch-on delay can increase to max. 3 s if this is followed immediately by further actuation.) |
after change in the actuation status, 4 active actuators | max. 450 ms (Corresponds to the risk time according to EN 60947-5-3. This is the maximum OFF time for the safety outputs following removal of the actuator. In case of EMC interference in excess of the requirements in accordance with EN 60947-5-3, the OFF time can increase to max. 750 ms. After a brief actuation of < 0.8 s, the switch-on delay can increase to max. 3 s if this is followed immediately by further actuation.) |
Start button actuating duration (for Manual Start operating mode) | min. 250 ms |
after change in the actuation status, 2 active actuators | max. 290 ms (Corresponds to the risk time according to EN 60947-5-3. This is the maximum OFF time for the safety outputs following removal of the actuator. In case of EMC interference in excess of the requirements in accordance with EN 60947-5-3, the OFF time can increase to max. 750 ms. After a brief actuation of < 0.8 s, the switch-on delay can increase to max. 3 s if this is followed immediately by further actuation.) |
Start button response delay (for Manual start operating mode) | 200 ... 300 ms |
after change in the actuation status, 1 active actuator | max. 210 ms (Corresponds to the risk time according to EN 60947-5-3. This is the maximum OFF time for the safety outputs following removal of the actuator. In case of EMC interference in excess of the requirements in accordance with EN 60947-5-3, the OFF time can increase to max. 750 ms. After a brief actuation of < 0.8 s, the switch-on delay can increase to max. 3 s if this is followed immediately by further actuation.) |
Atmospheric humidity | |
not condensing | max. 80 % rH |
Mounting distance | |
laterally to the neighboring device | min. 10 mm (If several evaluation units are mounted side by side in a control cabinet without air circulation (e.g. fan), a minimum distance of 10 mm must be maintained between the evaluation units. This distance enables the heat from the evaluation unit to dissipate.) |
Mounting type | Mounting rail 35 mm according to DIN EN 60715 TH35 |
Ambient temperature | |
at UB = 24V DC | -20 ... +55 °C |
Dwell time | min. 3 s (The dwell time is the time that the actuator must be outside the actuating range.) |
Safety contacts 13/14, 23/24 | |
Number of safety contacts | 2 Relay with internally monitored contacts |
Mechanical life | |
Operating cycles (relay) | 10 x 10⁶ |
Reliability values acc. to EN ISO 13849-1
Diagnostic Coverage (DC) | 99 % |
Number of switching cycles | |
≤ 1 A at 24 V DC | max. 153000 1/y |
≤ 0.1 A at 24 V DC | max. 760000 1/y |
≤ 3 A at 24 V DC | max. 34600 1/y |
Mission time | 20 y (This value is dependent on the number of switching cycles and the switching current.) |
Monitoring of the guard position | |
Category | 4 (This value is dependent on the number of switching cycles and the switching current.) |
Performance Level | PL e (This value is dependent on the number of switching cycles and the switching current.) |
PFHD | 1.9 x 10-8 (This value is dependent on the number of switching cycles and the switching current.) |
Miscellaneous
The following applies to the approval according to UL | Operation only with UL Class 2 power supply or equivalent measures. |
In combination with read head CES-A-LMN-SC
Mounting distance | |
neighboring read heads | min. 20 mm (If several evaluation units are mounted side by side in a control cabinet without air circulation (e.g. fan), a minimum distance of 10 mm must be maintained between the evaluation units. This distance enables the heat from the evaluation unit to dissipate.) |
In combination with read head CES-A-LSP-05V-104966, CES-A-LSP-10V-104967, CES-A-LSP-SB-104969, CES-A-LSP-15V-106271 and actuator CES-A-BSP-104970
Assured operating distances sao | |
with center offset m=0 | min. 10 mm (These values apply to installation of the read head and the actuator in an aluminum profile 45 x 45 mm.) |
Assured release distance sar | max. 45 mm |
Operating distance | |
with center offset m=0 | 20 mm (These values apply to installation of the read head and the actuator in an aluminum profile 45 x 45 mm.) |
Switching hysteresis | 1 ... 4 mm (These values apply to installation of the read head and the actuator in an aluminum profile 45 x 45 mm.) |
In combination with read head CES-A-LMN-SC and actuator CES-A-BDA-20
Assured operating distances sao | |
with center offset m=0 | min. 6 mm (This value applies to surface installation of the read head in metal and non-metallic installation of the actuator.) |
Assured release distance sar | |
with center offset m=0 | max. 26 mm (This value applies to surface installation of the read head in metal and non-metallic installation of the actuator.) |
Operating distance | |
with center offset m=0 | 9 mm A distance of s = 4 mm must be maintained for a side approach direction. (This value applies to surface installation of the read head in metal and non-metallic installation of the actuator.) |
Switching hysteresis | |
with center offset m=0 | 1 ... 1.8 mm (These values apply to surface installation of the read head in metal and non-metallic installation of the actuator.) |
In combination with read head CES-A-LNA-SC-077715, CES-A-LNA-05P-077806, CES-A-LNA-10P-077807, CES-A-LNA-05V-071845, CES-A-LNA-10V-071846, CES-A-LNA-15V-071847, CES-A-LNA-25V-071975, CES-A-LNA-15P-084682, CES-A-LCA-10V and actuator CES-A-BDA-20
Actuator distance s | |
Minimum distance for side approach direction | min. 4 mm (on mounting in non-metallic environment) |
Assured operating distances sao | |
with center offset m=0 | min. 11 mm (on mounting in non-metallic environment) |
Assured release distance sar | max. 33 mm |
Operating distance | |
with center offset m=0 | 16 mm (on mounting in non-metallic environment) |
Switching hysteresis | 0.5 ... 2 mm (on mounting in non-metallic environment) |
In combination with read head CES-A-LNN-SC-106601, CES-A-LNN-05V-106602, CES-A-LNN-10V-113294, CES-A-LNN-25V-115107 and actuator CES-A-BDN-06-104730
Assured operating distances sao | |
in z direction (with center offset x,y=0), in x direction (with center offset y,z=0) | min. 14 mm (These values apply to surface installation of the read head and the actuator.) |
Assured release distance sar | |
in y direction | max. 100 mm |
in x or z direction | max. 50 mm |
Operating distance | |
in z direction (with center offset x,y=0), in x direction (with center offset y,z=0) | 19 mm (These values apply to surface installation of the read head and the actuator.) |
Switching hysteresis | 4 mm (These values apply to surface installation of the read head and the actuator.) |
In combination with read head CES-A-LNA-SC-077715, CES-A-LNA-05P-077806, CES-A-LNA-10P-077807, CES-A-LNA-05V-071845, CES-A-LNA-10V-071846, CES-A-LNA-15V-071847, CES-A-LNA-25V-071975, CES-A-LNA-15P-084682, CES-A-LCA-10V and actuator CES-A-BBA-071840, CES-A-BCA
Actuator distance s | |
Minimum distance for side approach direction | min. 3 mm |
Assured operating distances sao | |
with center offset m=0 | min. 10 mm (These values apply to surface installation of the read head and the actuator.) |
Assured release distance sar | max. 26 mm |
Operating distance | |
with center offset m=0 | 15 mm (These values apply to surface installation of the read head and the actuator.) |
Switching hysteresis | 0.5 ... 2 mm (These values apply to surface installation of the read head and the actuator.) |
In combination with read head CES-A-LNA-SC-077715, CES-A-LNA-05P-077806, CES-A-LNA-10P-077807, CES-A-LNA-05V-071845, CES-A-LNA-10V-071846, CES-A-LNA-15V-071847, CES-A-LNA-25V-071975, CES-A-LNA-15P-084682, CES-A-LCA-10V and actuator CES-A-BDA-18-156935
Actuator distance s | |
Minimum distance for side approach direction | min. 5 mm |
Assured operating distances sao | |
with center offset m=0 | min. 10 mm (These values apply to surface installation of the read head and the actuator.) |
Assured release distance sar | max. 32 mm |
Operating distance | |
with center offset m=0 | 16 mm (These values apply to surface installation of the read head and the actuator.) |
Switching hysteresis | |
with center offset m=0 | 0.5 ... 1.4 mm (These values apply to surface installation of the read head and the actuator.) |
In combination with read head CES-A-LMN-SC and actuator CES-A-BDA-18-156935
Actuator distance s | |
Minimum distance for side approach direction | min. 3 mm |
Assured operating distances sao | |
with center offset m=0 | min. 6 mm (These values apply to surface installation of the read head and the actuator.) |
Assured release distance sar | max. 21 mm |
Operating distance | |
with center offset m=0 | 9 mm (These values apply to surface installation of the read head and the actuator.) |
Switching hysteresis | |
with center offset m=0 | 0.5 ... 1 mm (These values apply to surface installation of the read head and the actuator.) |
In combination with read head CES-A-LNN-SC-106601, CES-A-LNN-05V-106602, CES-A-LNN-10V-113294, CES-A-LNN-25V-115107 and actuator CES-A-BBN-106600
Assured operating distances sao | |
in z direction (with center offset x,y=0), in x direction (with center offset y,z=0) | min. 10 mm (These values apply to surface installation of the read head and the actuator.) |
Assured release distance sar | |
in x or z direction | max. 50 mm |
in y direction | max. 100 mm |
Operating distance | |
in z direction (with center offset x,y=0), in x direction (with center offset y,z=0) | 15 mm (These values apply to surface installation of the read head and the actuator.) |
Switching hysteresis | 1 ... 4 mm (These values apply to surface installation of the read head and the actuator.) |
In combination with read head CES-A-LMN-SC and actuator CES-A-BBA-071840
Assured operating distances sao | |
with center offset m=0 | min. 5 mm (This value applies to surface installation of the read head in metal and non-metallic installation of the actuator.) |
Assured release distance sar | |
with center offset m=0 | max. 25 mm (This value applies to surface installation of the read head in metal and non-metallic installation of the actuator.) |
Operating distance | |
with center offset m=0 | 8 mm A distance of s = 3 mm must be maintained for a side approach direction. (This value applies to surface installation of the read head in metal and non-metallic installation of the actuator.) |
Switching hysteresis | |
with center offset m=0 | 1 ... 1.8 mm (These values apply to surface installation of the read head in metal and non-metallic installation of the actuator.) |
In combination with read head CES-A-LNA-SC-077715, CES-A-LNA-05P-077806, CES-A-LNA-10P-077807, CES-A-LNA-05V-071845, CES-A-LNA-10V-071846, CES-A-LNA-15V-071847, CES-A-LNA-25V-071975, CES-A-LNA-15P-084682, CES-A-LCA-10V
Mounting distance | |
neighboring read heads | min. 50 mm (If several evaluation units are mounted side by side in a control cabinet without air circulation (e.g. fan), a minimum distance of 10 mm must be maintained between the evaluation units. This distance enables the heat from the evaluation unit to dissipate.) |
In combination with read head CES-A-LQA-SC and actuator CES-A-BBA-071840, CES-A-BCA
Assured operating distances sao | |
for vertical approach direction (center offset m=0) | min. 10 mm (These values apply to surface installation of the read head and the actuator.) |
for side approach direction (distance in x direction 8 mm) | min. +/- 18 mm (These values apply to surface installation of the read head and the actuator.) |
Assured release distance sar | max. 47 mm |
Operating distance | |
for vertical approach direction (center offset m=0) | 15 mm (These values apply to surface installation of the read head and the actuator.) |
for side approach direction (distance in x direction 8 mm) | +/- 22 mm (These values apply to surface installation of the read head and the actuator.) |
Switching hysteresis | |
for vertical approach direction (center offset m=0) | 2 ... 3 mm (These values apply to surface installation of the read head and the actuator.) |
for side approach direction (distance in x direction 8 mm) | 1 ... 1.8 mm (These values apply to surface installation of the read head and the actuator.) |
In combination with read head CES-A-LMN-SC and actuator CES-A-BMB
Actuator distance s | |
Minimum distance | min. 1.2 mm |
Assured operating distances sao | |
with center offset m=0 | min. 3.5 mm (These values apply to surface installation of the read head in steel.) |
Assured release distance sar | max. 10 mm |
Operating distance | |
with center offset m=0 | 5 mm (These values apply to surface installation of the read head in steel.) |
Switching hysteresis | 0.1 ... 0.3 mm (These values apply to surface installation of the read head in steel.) |
In combination with read head CES-A-LNN-SC-106601, CES-A-LNN-05V-106602, CES-A-LNN-10V-113294, CES-A-LNN-25V-115107
Mounting distance | |
neighboring read heads | min. 160 mm (If several evaluation units are mounted side by side in a control cabinet without air circulation (e.g. fan), a minimum distance of 10 mm must be maintained between the evaluation units. This distance enables the heat from the evaluation unit to dissipate.) |
In combination with read head CES-A-LQA-SC
Mounting distance | |
neighboring read heads | min. 80 mm (If several evaluation units are mounted side by side in a control cabinet without air circulation (e.g. fan), a minimum distance of 10 mm must be maintained between the evaluation units. This distance enables the heat from the evaluation unit to dissipate.) |
In combination with read head CES-A-LQA-SC and actuator CES-A-BQA
Assured operating distances sao | |
for vertical approach direction (center offset m=0) | min. 16 mm (These values apply to surface installation of the read head and the actuator.) |
for side approach direction (distance in x direction 10 mm) | min. +/- 24 mm (These values apply to surface installation of the read head and the actuator.) |
Assured release distance sar | max. 60 mm |
Operating distance | |
for side approach direction (distance in x direction 10 mm) | +/- 28 mm (These values apply to surface installation of the read head and the actuator.) |
for vertical approach direction (center offset m=0) | 23 mm (These values apply to surface installation of the read head and the actuator.) |
Switching hysteresis | |
for vertical approach direction (center offset m=0) | 2 ... 3 mm (These values apply to surface installation of the read head and the actuator.) |
for side approach direction (distance in x direction 10 mm) | 1 ... 1.3 mm (These values apply to surface installation of the read head and the actuator.) |
Tartozékok

CEM-A-LE05K-S2
- Read head with guard locking without guard lock monitoring
- Locking force 650 N
- With remanence
- Up to category 4 according to EN ISO 13849-1
- Two safety screws M5x16 included

CEM-A-LE05K-S1-10P
- Read head with guard locking without guard lock monitoring
- Locking force 650 N
- With remanence
- With connecting cable 10 m, PUR, for connection to the CES evaluation unit
- Up to category 4 according to EN ISO 13849-1
- Two safety screws M5x16 included

CKS-A-L1B-SC-113130
- Key adapter with integrated CES read head
- Suitable for connection to a CES-AZ evaluation unit or CES-FD field unit
- Simple connection via plug connector M8
- Front cover: red
- High degree of protection IP67
- LED indicator

CKS-A-L1B-SC-158081
- Key adapter with integrated CES read head
- Suitable for connection to a CES-AZ evaluation unit or CES-FD field unit
- Simple connection via plug connector M8
- Front cover: black
- High degree of protection IP67
- LED indicator
Letöltések
Complete package
Download all important documents with a single click.
Content:
- The operating instructions and any additions to the operating instructions or brief instructions
- Any data sheets to supplement the operating instructions
- The declaration of conformity
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Ordering data
Rend. sz. | 105141 |
Articlename | CES-AZ-UES-04B |
Weight | 0,297kg |
Customsclass | 85364110 |