6 horstCONTROL I/O
38
The following functions can be configured for the safe outputs (see
Software Configuration Options for
Function
Description
None
Emergency stop
“LO”: The robot is in emergency stop (internal emergency stop or trig-
gered by an error).
Robot stopped
“HI”: No axis is moving.
Reduced speed
“HI”: The robot is limited to a speed of 250 mm/s.
Teaching mode
“HI”: The robot is in teaching mode.
Standstill monitoring active
As release for external machines in the cell
“HI”: Robot travel release is issued.
“LO”: Standstill monitoring is active. There is a stop condition (in
T1/T2, the enabling switch is not actuated, emergency stop/safety
stop/error).
Enabling switch
“HI”: Enabling switch actuated (center
position).
“LO”: Enabling switch not actuated or pressed.
Safety stop
Output can be used to forward the guaranteed operator protection
to other devices (within the same protection area).
Two digital outputs
Safe output is configured as two general digital outputs.
Table 6-4: Configurable functions for safe outputs
6.4.3
Test Signals A/B
The internally generated OSSD signals, hereinafter referred to as test signals A and B,
are issued at terminal block X4. These can be used to supply external protection de-
vices with two-channel, safe signals and return these to the control system. The param-
eters of the test signal are specified in the following table:
Type
Push-Pull
Output voltage
23.5
–
24.5 V
Test pulse period
100 ms, not configurable
Test pulse duration
400
µ
s, not configurable
Load capacity
max. 50
µ
F
Table 6-5: Test signal characteristic values
Figure 6-10: Test signal connection
Summary of Contents for HORST900
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