P/N 69761 rev. B
5
Banner Engineering Corp.
•
Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
PICO-GUARD Controller
Instruction Manual
2.7 Specifications
Components and Specifications
Patent Pending
System Power Requirements*
24V dc ±15%, 10% maximum ripple; 250 mA max., exclusive of output loads.
Short Circuit Protection
All inputs and outputs are protected from short circuits to +24V dc or dc common.
Response Time
Optical Channel:
13 milliseconds max. (Time between the opening of an optical switch and the
OSSD safety outputs turning off.)
USSI Inputs:
7 milliseconds max. (Time between actuation of the safety stop input device and
the OSSD safety outputs turning off.)
Safety Rating
Type 4 per IEC 61496-1; Category 4 per ISO 13849-1 (EN 954-1).
EDM Inpu
t
Two inputs for external device monitoring (EDM). Each input monitors the status of a normally
closed, forced-guided monitor contact of an external safety device or MPCE. The EDM inputs
must be high (10 to 30V dc) when the external device or MPCE is OFF, and must be low (less
than 3V dc) when the external device or MPCE is ON. External devices or MPCEs must meet
certain timing requirements, depending on the configuration setting (see Section 3.9.3).
System Reset Input
The Reset input must be high (10 to 30V dc) for 0.25 to 2 seconds and then low (less than
3V dc) to reset the system from a manual power-up, optical channel latch or system lockout
condition.
USSI 1 Reset Input
The Reset input must be high (10 to 30V dc) for 0.25 to 2 seconds and then low (less than 3V
dc) to reset the system from a USSI 1 latch condition.
USSI 1 Input
Dual-channel, redundant inputs for monitoring output contacts or “handshake” compatible safety
solid-state outputs of other safety stop devices. OFF (stop) signals cause the PICO-GUARD
OSSDs to latch OFF (Latch condition). (See Section 3.7.)
USSI 2 Input
Dual-channel, redundant inputs for monitoring output contacts or “handshake” compatible safety
solid-state outputs of other safety stop devices. OFF (stop) signals cause the PICO-GUARD
OSSDs to turn OFF (Trip condition). (See Section 3.7.)
OSSD Outputs
Two redundant solid-state 24V dc, 0.5A max. sourcing OSSD (Output Signal Switching Device)
safety outputs. (Use optional interface modules for ac or larger dc loads.)
Capable of the Banner “Safety Handshake” (see Section 1.1).
ON-state voltage:
≥
Vin-1.5V dc
OSSD test pulse width:
100 µs to 300 µs
OFF-state voltage:
1.2V dc max.
OSSD test pulse period:
6 ms
Max. load resistance:
1,000 ohm
Max. load capacitance:
0.1 µF
Non-Safety Outputs
(Aux., Weak Signal, Fault, Ch1-4)
Solid state 24V dc (
≥
Vin – 1.5V dc), 0.25A max. sourcing non-safety outputs
Remote Status Interface
Isolated RS-232 non-safety output (4800 Baud rate) for setup or monitoring the system status.
Connections provided for a Remote Display unit (see Section 2.3, Accessories).
Controls and Adjustments
Redundant switches for Auto/Manual power-up, Trip/Latch output operation and 1- or 2-channel
EDM operation. Redundant switches for ON/OFF of each optical channel. (NOTE: At least one
optical channel must be ON.)
Ambient Light Immunity
> 10,000 lux at 5° angle of incidence
Strobe Light Immunity
Totally immune to one Federal Signal Corp. “Fireball” model FB2PST strobe
Emitter Element
Visible red LED, 660 nm at peak emission
Enclosure Rating
IEC IP20 (see Section 3.3.1)
Operating Conditions
Temperature:
0° to +50° C (+32° to 122° F)
Relative Humidity:
95% maximum (non-condensing)
*External supply must be in accordance with IEC 61558 (EN 60742).
