User Manual

ManualsBrandsBanner ManualsSpecial machinerySafe Speed Monitoring Modules

For over-speed, under-speed, and zero-speed detection

• Dual-channel redundancy

• Monitors 2 sensors with PNP outputs

• Monitors rotation (rpm) or linear movement

• LED indication for power, input 1 and input 2

• 24V ac/dc operation

• Feedback input monitors external machine control elements

• Two normally open (N.O.) and one normally closed (N.C.) output switching

channels for connection to control-reliable power interrupt circuits rated at

• Stop Category 0, per ISO 13850 (EN 418)

• SIL Claimed Level (SIL CL) 3 to EN 62061

• Performance Level (PL) e / Category 3 to DIN EN ISO 13849-1

• DIN-rail mountable 45 mm wide housing with removable terminal blocks

• Energizes output relays (closes N.O. contacts), when speed drops below

set value, for "standstill" (under-speed) monitoring

• De-energizes output relays (opens N.O. contacts), when speed rises above

set value, for over-speed monitoring

Models Detectable Speed Range *

SSM-FM-11A10 5 to 10,500 ipm

SSM-FM-11A20 10 to 20,000 ipm

* The unit "ipm" (impulses per minute) may be equal to actual machine rpm, or may be a multiple, depending on the number of sensing

points used.

WARNING: Not a Stand-Alone Safeguarding Device

This Banner product is not a stand-alone point-of-operation guarding device, as defined by OSHA

regulations. It is necessary to install point-of-operation guarding devices, such as safety light screens

and/or hard guards, to protect personnel from hazardous machinery. Failure to install point-of-operation

guards on hazardous machinery can result in a dangerous condition which could lead to serious

injury or death.

SSM-FM-11A... Safe Speed Monitoring Modules

P/N 140782_web

rev. C

8/22/2012

Summary of content (15 pages)

PAGE 1
SSM-FM-11A... Safe Speed Monitoring Modules For over-speed, under-speed, and zero-speed detection • • • • • • • • • • • • • Dual-channel redundancy Monitors 2 sensors with PNP outputs Monitors rotation (rpm) or linear movement LED indication for power, input 1 and input 2 24V ac/dc operation Feedback input monitors external machine control elements Two normally open (N.O.) and one normally closed (N.C.
PAGE 2
SSM-FM-11A... Safe Speed Monitoring Modules Important... read this before proceeding! The user is responsible for satisfying all local, state, and national laws, rules, codes, and regulations relating to the use of this product and its application. Banner Engineering Corp. has made every effort to provide complete application, installation, operation, and maintenance instructions.
PAGE 3
SSM-FM-11A... Safe Speed Monitoring Modules Overview The SSM-FM-11A.. Safe Speed Monitoring Module ("the Module") can be used to monitor a rotating or laterally moving device's stopping, starting, or speed. The Module requires signals from two independent sensors. As a "standstill" (under-speed) monitor, the Module is often used in combination with hard guarding, access doors, and safety gates with solenoid-lock or -unlock safety switches.
PAGE 4
SSM-FM-11A... Safe Speed Monitoring Modules Input Sensor Requirements • If the safety outputs are ON when a sensor wire breaks or is disconnected, the related internal relay turns OFF and the safety outputs open, signaling "No Standstill" and/or "Over-speed." • If the safety outputs are OFF when a sensor wire breaks or is disconnected, they can not turn ON (again signaling "No Standstill" and/or "Over-speed") until the sensor connection is fixed.
PAGE 5
SSM-FM-11A... Safe Speed Monitoring Modules Reset and Startup Conditions The Module works only in automatic reset mode. In order for the Module to switch to RUN mode for normal operation, the Y1 - Y2 feedback input must be closed during power-up. The Module typically requires two to three seconds after power ON to evaluate the signals from the two sensors and to decide if the number of incoming signals/pulses is above or below the set switch point value.
PAGE 6
SSM-FM-11A... Safe Speed Monitoring Modules 1. Safety Module ES-FA-9AA is configured for manual reset. See data sheet p/n 60606 for complete information. Other Safety Modules can be used. Call Banner Engineering with all questions. 2. After the guard has been closed, the Safety Module has been reset, and the machine control has started the motor, the Request to Enter button can be pushed to interrupt the cycle. 3.
PAGE 7
SSM-FM-11A... Safe Speed Monitoring Modules • • • • • An overvoltage protective device A transformer with isolated windings A distribution system with a multiplicity of branch circuits (capable of diverting energy of surges) A capacitance capable of absorbing energy of surges A resistance or similar damping device capable of dissipating the energy of surges When switching inductive ac loads, it is good practice to install appropriately-sized arc suppressors to protect the Safety Module outputs.
PAGE 8
SSM-FM-11A... Safe Speed Monitoring Modules • Selected range: 300 to 2,700 ipm • Potentiometer range delta: 2,700 ipm minus 300 ipm = 2,400 ipm With the potentiometer dial all the way to the left (counterclockwise), the switch point is at 300 ipm. To increase the setting to 1,400 ipm, 1,100 ipm (1,400 minus 300 = 1,100 ipm) must be added: [270 degrees ÷ 2,400 ipm (total range)] x 1,100 ipm = 123.75 degrees Starting from the left, turn the potentiometer dial 123.75° clockwise.
PAGE 9
SSM-FM-11A... Safe Speed Monitoring Modules Number of pulses per minute at a speed in meters per minute: sensing points/meter × meters/minute For this example, the number of pulses = 4 pulses/meter × 60 meters/minute = 240 pulses/minute. To detect a speed greater than 1 meter/second, the switching point must be set slightly higher than 240 ipm; for 4 sensing points: 4 pulses per meter.
PAGE 10
SSM-FM-11A... Safe Speed Monitoring Modules Set Switch Point Value (30 rpm) Motor Min. Speed (30 rpm) Set Switch Point Value (5 rpm) (Potentiometer) Safety Outputs Setup Normal Operation Speed Motor Shuts Off And Comes to a Standstill Figure 8. Under-speed Timing Delay Time A delay time occurs between the detection of the standstill condition and the turning ON of the safety output contacts; this delay time is based on the Module's adjusted ipm (input pulses per minute) set value.
PAGE 11
SSM-FM-11A... Safe Speed Monitoring Modules Configuration for Zero Speed Detection These directions illustrate only one setup method, which may be not as accurate as using an rpm meter or an oscilloscope to set the switching frequency to a precise value. This example should set the switch point very close to Standstill. 1. Turn OFF power to the Module and the machine. 2. Pry open the Module's front plate with a small flat-blade screwdriver. 3.
PAGE 12
SSM-FM-11A... Safe Speed Monitoring Modules 1. 2. 3. 4. 5. 6. 7. 8. 9. Turn OFF power to the Module and the motor. Using a small flat-blade screwdriver, pry open the Module's front plate. Using the DIP switches, select switching range 300-2,700 ipm or 600-5,300 ipm, depending on model. Turn the fine-tune potentiometer clockwise to 10. Set the simultaneity potentiometer to the middle position (0). If the sensors are not yet installed, install them so that they can detect the rotation of the motor.
PAGE 13
SSM-FM-11A... Safe Speed Monitoring Modules Repairs CAUTION: Abuse of Module After Failure If an internal fault has occurred and the Module will not reset, do not tap, strike, or otherwise attempt to correct the fault by a physical impact to the housing. An internal relay may have failed in such a manner that its replacement is required. If the Module is not immediately replaced or repaired, multiple simultaneous failures may accumulate such that the safety function can not be guaranteed.
PAGE 14
SSM-FM-11A... Safe Speed Monitoring Modules 2A / 230V ac for N.C. contact (per IEC/EN 60 947-5-1) Electrical Life (Switching cycles of the output contacts, resistive load) 350,000 cycles @ 920 VA 1,000,000 cycles @ 440 VA 2,000,000 cycles @ 250 VA 5,000,000 cycles @ 125 VA Thermal Current Ith: 4A Mechanical Life: More than 50,000,000 operations Power Ranges Min. voltage: 15V ac/dc Max. voltage: 230V ac/dc Min. current: 30 mA ac/dc Max. current: 4 A Min. power: 0.45 W (0.45 VA) Max.
PAGE 15
SSM-FM-11A... Safe Speed Monitoring Modules Dimensions 84 mm (3.3") 118.0 mm (4.6") 45 mm (1.8") Figure 11. Dimensions for SSM-FM-11A20 Banner Engineering Corp Limited Warranty Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the date of shipment. Banner Engineering Corp.